Artykuły w czasopismach: „Bamboo structures”

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Sudibyo, Gathot Heri, Nor Intang Setyo Hermanto, Hsuan-Teh Hu, Yanuar Haryanto, Laurencius Nugroho i Bagyo Mulyono. "FLEXURAL LOAD AND DEFLECTION BEHAVIOR OF STRUCTURAL BAMBOO FILLED WITH CEMENT MORTAR". Jurnal Teknologi 83, nr 4 (7.06.2021): 31–39. http://dx.doi.org/10.11113/jurnalteknologi.v83.16319.

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Bamboo has been significantly and rapidly used to build temporal and permanent structures since time immemorial. However, this renewable natural material has a low bearing capacity, limiting its application to structures under light loads. Therefore, this research was carried out to determine an innovative scheme capable of enhancing bamboo's load-bearing by filling the cavity with cement mortar. Furthermore, a study was carried out to experiment flexural load carrying capacity and the deflection of mortar-filled structural bamboo by considering the diameter and node parameters. A total of 12 specimens were examined using a four-point bending protocol. The result showed the ultimate flexural load carrying capacity of mortar-ﬁlled bamboo specimens are higher than those of the conventional bamboo specimens. Specifically, mortar filled bamboo specimen with a diameter of 70 mm was significantly better, 41.10 and 47.06%, as compared than the conventional bamboo in terms of its flexural load carrying capacity for specimen without and with nodes, respectively. Increases in flexural load carrying capacity were also observed for the mortar-filled bamboo specimens having 80 and 90 mm diameter and these observed increases were recorded as 104.55 and 112.00%, and 48.72 and 60.74%, respectively for specimen without and with nodes. Furthermore, the deflection of mortar-ﬁlled bamboo elements are substantially greater than those of conventional. Finally, the advantages of the bamboo diameter and bamboo nodes on the flexural load carrying capacity indicated that these essential ﬁndings need to be carefully considered in designing structural elements for both mortar-filled and conventional bamboos.

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Moreira, Luis Eustáquio, Fernando José da Silva i Francisco Carlos Rodrigues. "Bamboo Mast for Lightweight Arquitecture". Key Engineering Materials 600 (marzec 2014): 3–9. http://dx.doi.org/10.4028/www.scientific.net/kem.600.3.

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Bamboo is a pipe produced by solar energy. It is a plant of the graminae family which grows up all over tropical and part of subtropical regions of the world in more than 1250 species. High biomass production, high mechanical resistance, low specific weight and easy workability has done of bamboo a promise to future generations in relationship to sustainable construction systems. Bamboos of the Phyllostachys pubescens species are one of the most resistant and straight axis bamboos, used in China as material construction and other applications, as paper and fabrics. They are the most commercial bamboos of China and its forests covers 5,6 millions of hectare in that country. This exotic species is met on small plantations in Rio de Janeiro and São Paulo states of Brazil. Many characteristics turns bamboo a smart structural element: high resistance/weight ratio; natural nodes spaced along the culm which avoids local buckling and graded distribution of the fibers from inner to outer side of the thickness wall. So, the application of bamboos as tensile structures supports is a coherent choice since these modern tents characterize a lightweight architecture. Some structural bamboos can attain even more than 15 meters long with 10 cm mean diameter. To increase the load capacity of this slender bar and make feasible bamboo use as masts for tensile structures, an hybrid mast using bamboo as axis and 4 steel cables along of was designed and tested in the Structural System Laboratory LASE, and Structures Experimental Analysis Laboratory LAEES, respectively. In this paper it will be presented the results of the mechanical tests for 2 different masts with 6 meters long. Both masts have the same design but important differences which will be discussed in the paper.

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Lao, Hange. "Connections for Bamboo Structures". IOP Conference Series: Earth and Environmental Science 783, nr 1 (1.05.2021): 012028. http://dx.doi.org/10.1088/1755-1315/783/1/012028.

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Zuhri, MYM, Y. Liao, QY Wang i ZW Guan. "The energy absorbing properties of bamboo-based structures". Journal of Sandwich Structures & Materials 21, nr 3 (22.05.2017): 1032–54. http://dx.doi.org/10.1177/1099636217707171.

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A series of quasi-static and dynamic tests on bamboo-based honeycomb and bamboo-reinforced foam structures were carried out to investigate their energy absorbing characteristics and the related failure modes. Here, the tube damage shows the typical buckling (bulging) and top surface splitting failure. The results on the individual tubes show that the energy absorbing capacity increases as the diameter-to-thickness ratio decreases. Simple analytical models were also developed to predict the peak load and the corresponding displacement, with reasonably good correlation to the experimental results, in spite of the inherent variability of the bamboo tubes. It was found that different dynamic responses of the individual bamboo tubes and grouped bamboo tubes in the honeycomb cores affect their energy absorbing capabilities. The composite structure made from bamboo and foam shows that the embedded tube exhibits a higher energy absorption capacity than the sum of the individual foam and bamboo, due to the constraint offered by the foam.

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Nishiyama, Ryo, i Motohiro Sato. "Effective length of bamboo-like stiffened hollow cylindrical structures". Journal of Mechanics 38 (2022): 250–56. http://dx.doi.org/10.1093/jom/ufac019.

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ABSTRACT Hollow cylindrical structures are susceptible to local buckling because they flatten and significantly reduce their stiffness when they bend. Therefore, many previous studies aimed to improve the strength of pipelines and building structures were conducted. Our research group has focused on bamboo and has theoretically proven that stiffness anisotropy caused by bamboo's unique nodes and vascular bundles enhances the stiffness of cylindrical structures. In this study, to investigate this analytically, we carried out a finite-element analysis and succeeded in deriving a new dimensionless parameter that the stiffening effect of an anisotropic consideration. This result is applicable to a wide range of cylindrical structures, from thin-walled to thick-walled, and it is expected that bamboo-inspired bionic designs will be proposed in the future.

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Sursaeva, Vera G., T. V. Tatzij, Lasar S. Shvindlerman i R. G. Faulkner. "Grain Boundaries in Bamboo Structures". Materials Science Forum 207-209 (luty 1996): 345–48. http://dx.doi.org/10.4028/www.scientific.net/msf.207-209.345.

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Silva, Fernando José, M. A. P. Rezende, White J. Santos, E. V. M. Carrasco, J. N. R. Mantilla, E. M. Piancastelli i Aldo G. Magalhães. "Sustainable Architecture with Bamboo Columns Technology". Applied Mechanics and Materials 864 (kwiecień 2017): 318–23. http://dx.doi.org/10.4028/www.scientific.net/amm.864.318.

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Compositions with different pipe segments for constructing structural columns were investigated. In this article there is shown a column type composed of five parallel bamboo bars, connected by screws 16 mm and 13 mm in diameter. Compression tests instrumented with displacement transducers are associated with numerical modeling analysis to describe the column load capacity, from the general criteria of dimensioning. The chosen Bamboos are from the species Phyllostachys pubescens due to its favorable characteristics to produce structures and their common use in China, Brazil and other countries of temperate zones. In this proposal, the load capacity is considerably increased and lateral displacements are insignificant compared to the bamboo tested separately. More usual columns 3 and 4 meters long were modeled and presented the load limits of use for these types of structures. Other dimensions of columns can be calculated by the same system, presenting great design opportunities in the construction of the architecture and built spaces. This article shows a great advantage in using columns with bamboo bars compared to other materials used in the architecture, with guarantee and good indexes of security.

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Sarıçam, Canan, Nazan Okur, Nuray Uçar i Nevin Çiğdem Gürsoy. "Thermal insulation and sound absorption properties of fibrous layered structures". Journal of Structural Engineering & Applied Mechanics 6, nr 3 (31.08.2023): 224–35. http://dx.doi.org/10.31462/jseam.2023.03224235.

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In this study, the effects of the addition of Activated carbon powder (ACP), Polyacrylonitrile nanofiber web (PAN), application of Plasma treatment (P), and the number of treatment layers on thermal insulation and sound absorption properties of fibrous structures have been examined and compared to each other. Bamboo and E-glass fibers have been used to produce fibrous layered structures. E-glass-based fibrous structures had slightly higher thermal resistance than that of bamboo fiber-based fibrous structures. However, sound absorption of bamboo-based fibrous layered structures was higher than that of E-glass fiber-based fibrous layered structures. The results revealed that plasma treatment, nanofiber web application, and activated carbon powder insertion increased the thermal resistance of fibrous layered structures made of bamboo fiber and E-glass fiber. In particular, the plasma treatment on three layers provided the highest thermal resistance for the E-glass fiber fibrous layered structure, however, PAN nanofiber application between three layers resulted in the highest thermal resistance for the bamboo fiber fibrous layered structure. Concerning sound absorption, the PAN nanofiber web provided the highest improvement for both the bamboo fiber-based layered structures and the E-glass-based layered structures.

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He, Yong Jun, Xiao Hua Liu i Xu Hong Zhou. "Arrangement Principle of Hoop-Layers of Imitating Bamboo Drum Type Tridimensional Parking Structure". Applied Mechanics and Materials 204-208 (październik 2012): 1040–44. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.1040.

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Considering the structure type and load feature of vertical lifting tridimensional parking structures are similar to those of bamboo, a new structure arrangement style of tridimensional parking structure is presented, that is to set hoop-layers like bamboo knots at its proper height, according to the imitating bamboo principle that any two adjacent hoop-layers have equal stability and lateral displacement. The static and stability property of imitating bamboo structure and non-imitating bamboo structures is studied. It is shown that the lateral displacement of imitating bamboo structure is constrained effectively and the storey relative lateral displacement becomes smaller and more uniformly distributed; additionally, the internal force mutation of columns is relatively moderate and resisting overturning ability of structures is enhanced; moreover, the overall stability of structures controlled by equivalent short columns results in the great improvement of stability bearing capacity. All above verifies the rationality of the imitating bamboo principle.

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Chawla, Vipin Kumar, Vijayakumar Seshasayee i Ranjana Yadav. "Use of lignocellulosic biomaterials for sustainable development of bamboo strand lumber for structural applications". BioResources 17, nr 2 (1.04.2022): 2864–73. http://dx.doi.org/10.15376/biores.17.2.2864-2873.

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Bamboo is one of the fastest growing plants and has mechanical properties similar to timber. The main reasons for the popularity of bamboo in construction can be attributed to its low cost, local availability, and adequacy of simple, local tools, and skills for fabrication. Application of bamboo in construction is, however, normally limited to low-cost housing and temporary structures due to several factors including irregular shapes, hollow circular cross sections, and durability issues. This report presents the results of an investigation into production of an engineered bamboo lumber product. Bamboo culms were cut into smaller strands and were re-constituted into rectangular sections by gluing and pressing at 140 °C to 145 °C. This approach overcomes the presence of the inherent hollow core and randomizes the inter-nodes and other growth characteristics found in bamboo. The reconstituted bamboo strand lumber (RBSL) was developed using crushed Bambusa bambos species and phenol formaldehyde resin. The physical and mechanical properties of reconstituted bamboo strand lumber were evaluated as per IS 1734 (1983). From the results it was found that the BSL can be used as an alternate to timber to meet Sustainable Development Goals (SDGs) for building applications that will effectively transform the world.

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Wei, Yang, Shen Xue Jiang, Qing Fang Lv, Qi Sheng Zhang, Li Bin Wang i Zhi Tao Lv. "Flexural Performance of Glued Laminated Bamboo Beams". Advanced Materials Research 168-170 (grudzień 2010): 1700–1703. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.1700.

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Bamboo structures have a good performance like wooden structures. The flexural performance of glued laminated bamboo beams for bamboo structures were studied through ten large-scale beams tested. The study investigated the failure modes of bamboo beams, flexural capacity, cross-sectional stiffness and strain distribution. In test, four kinds of typical failure modes of bamboo beams include brittle fracture of the bottom fiber, compressive buckling failure at the top of the bamboo strips layers, stratified fracture and oblique tear of the bottom fiber. The control condition of the design load was the cross-sectional stiffness rather than the flexural strength according to the experimental results. The flexural elastic modulus of 10GPa is suggested to check deformation of bamboo beams in the design. The plane-section assumption of cross-sectional strain distribution along the height is verified for bamboo beams.

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Zhu, Yikui, Jiawei Huang, Kaili Wang, Bo Wang, Shaolong Sun, Xinchun Lin, Lili Song, Aimin Wu i Huiling Li. "Characterization of Lignin Structures in Phyllostachys edulis (Moso Bamboo) at Different Ages". Polymers 12, nr 1 (10.01.2020): 187. http://dx.doi.org/10.3390/polym12010187.

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Bamboo is a gramineous plant widely distributed in China and has great prospects. Normally, local people cut bamboo culm at first year for paper milling or at six years for construction. Understanding lignin changes in bamboo with aging is necessary for better exploring the application of bamboo at different ages and can also promote the application of bamboo more effectively. Based on the previous study, the chemical structure and the lignin content of bamboo at different ages were further explored by FT-IR, GPC, NMR and other chemical methods in this paper. Results showed that the lignin structures of bamboo at different ages were similar with three monomers of S, G and H, but the molecular weight increased with age. Quantitative structure estimation further confirmed that S-type lignin content and S/G ratio of bamboo lignin constantly increased with age.

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Xu, Qingfeng, Xi Chen, Jian-Fei Chen, Kent A. Harries, Lingzhu Chen i Zhuolin Wang. "Seismic strengthening of masonry walls using bamboo components". Advances in Structural Engineering 22, nr 14 (14.06.2019): 2982–97. http://dx.doi.org/10.1177/1369433219855902.

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Bamboo is a sustainable green material and has been gradually applied in the construction industry; however, little research on strengthening masonry structures with bamboo has been carried out. In this article, strengthening methods using bamboo were developed including bamboo grid reinforced cement mortar layer, externally bonded bamboo mats, additional confining horizontal bamboo reinforced concrete band beams, and bamboo strips placed in mortar joints. Ten masonry walls were designed including two reference walls. Experimental results showed that all the strengthening methods can improve certain aspects of the seismic performance of masonry walls. The shear strength, deformability, and energy dissipation capacity of masonry walls strengthened with bamboo grid reinforced cement mortar and externally bonded bamboo mats were the most improved. The limit states of tested walls were discussed. Strengthened masonry structures with bamboo components are promising methods and can be used especially in remote areas.

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Liu, Cai, Qirong Wu, Xiaolian Wu, Mengzhu Han, Xin Guan i Jinguo Lin. "Influence of slab structure on the performance of bamboo based concrete formwork". BioResources 15, nr 4 (12.08.2020): 7503–16. http://dx.doi.org/10.15376/biores.15.4.7503-7516.

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To reduce the density of bamboo-based concrete formwork on the premise of meeting the performance requirements, the bamboo was first treated by cold plasma, and then by increasing the distance between the adjacent bamboo strips of the radial bamboo curtain in the middle layer, the internal porosity was increased. The production of lightened bamboo based concrete formwork, which meets China’s forestry industry standards, was achieved. Four groups of bamboo-based concrete formworks with different slab structures were designed. The key results showed that slab structures have an extremely significant effect on the density, MOR, MOE, IB, and TS of the bamboo-based concrete formwork. A group of optimal slab structures was obtained by comparing their physical and mechanical properties (1st and 9th floor-phenolic resin impregnated paper, 2nd and 8th floor-bamboo mat, 3rd and 7th floor-tangential bamboo curtain, 4th and 6th floor-radial spaced bamboo curtain). Based on the required physical and mechanical properties, its density was 0.62 g·cm-3, which was 27.1% lower than that of traditional bamboo plywood template (0.85 g·cm-3) circulating on the current market. This lightened BBCF can save raw materials, facilitate transportation and reduce labor intensity in the application process so that it will be widely used in building construction.

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Zhang, Jialiang, Keting Tong, Pei Wu i Yushun Li. "Research Status on Steel-bamboo Composite Structure". MATEC Web of Conferences 275 (2019): 01018. http://dx.doi.org/10.1051/matecconf/201927501018.

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This paper presents a new type of lightweight composite structural system using bamboo-based panel and cold-formed thin-walled steel. The bamboo-based panel and cold-formed steel with C-section and U-section or profiled steel sheet can form various steel-bamboo composite members, including composite slab, composite wall, composite beam and composite column, utilizing structural adhesive or adhesive-screw reinforced joins. The paper summarizes the section design, mechanical experiments of the steel-bamboo composite structures based on the application of bamboo-based panel in modern building structures. Research shows that the two materials can form a perfect composite section and the connection systems are very effective in a long time, composite members have high capacity, ideal stability and ductility. The study shows that steel-bamboo composite components have good prospects in building structures of China.

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Wang Yueping, Wang Ge, Cheng Haitao, Tian Genlin, Liu Zheng, Xiao Qun Feng, Zhou Xiangqi, Han Xiaojun i Gao Xushan. "Structures of Bamboo Fiber for Textiles". Textile Research Journal 80, nr 4 (lipiec 2009): 334–43. http://dx.doi.org/10.1177/0040517509337633.

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Lv, Qingfang, Yi Ding i Ye Liu. "Study of the bond behaviour between basalt fibre-reinforced polymer bar/sheet and bamboo engineering materials". Advances in Structural Engineering 22, nr 14 (23.06.2019): 3121–33. http://dx.doi.org/10.1177/1369433219858725.

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To improve practical application of modern bamboo structures, strengthening the bamboo engineering material is necessary to overcome insufficient stiffness. As an essential step in developing fibre-reinforced polymer–bamboo engineering material composite structures aimed at increasing the structural stiffness, the bonding behaviour at the interface of the fibre-reinforced polymer and bamboo engineering materials should be investigated in detail because currently there is a lack of research. In this article, bonding behaviour is studied between basalt fibre-reinforced polymer bar and bamboo engineering material including laminated and reconstituted bamboo and between basalt fibre-reinforced polymer sheets and laminated bamboo. Failure patterns are categorized, and the load–slip curves are discussed. Based on the failure pattern and strain variation, recommended bond lengths were proposed for the basalt fibre-reinforced polymer bar–bamboo engineering material and basalt fibre-reinforced polymer sheet–laminated bamboo composite specimens, respectively. In addition, a simplified three-phase bond–slip model was proposed for the basalt fibre-reinforced polymer bar–bamboo engineering material composite specimen.

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Moreira, Luis Eustáquio, Fernando José da Silva i Francisco Carlos Rodrigues. "Design and Mechanical Tests of Bamboo Masts". Key Engineering Materials 517 (czerwiec 2012): 238–44. http://dx.doi.org/10.4028/www.scientific.net/kem.517.238.

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Bamboos are smart natural tubes and a resistant material. Many species can be selected with 10 cm basal diameter, 12 m high and approximately straight longitudinal axis. A slender element like that has a relatively low load capacity under compression force. This limitation can be by passed through a composition of bamboo and cables. Through coherent design, this composition may produce an aesthetical and light mast with high axial compression resistance. This hybrid structure opens a big application for bamboo tubes, as for example, masts for the modern tents, known as tensile structures in the low weight architecture. Different compositions which use a large number of bamboos can be derived from this one. So, the mast mechanical performance investigation opens the way for another more complex systems understanding. In this paper, the design of a bamboo mast with 6 meters long is developed. A previous numerical investigation through SAP 2000 v14 structural analysis software was used for mast design and project. Cables and accessories; length and connections of the bracings and others constructive details are investigated until the conquest of a well fitted mast. A non destructive compression mechanical test of the mast rotation free at ends was done. Loads, tension in cables and lateral displacements were gauged in real time. Test results and numerical analysis show that masts can support compression forces many times bigger than bamboo itself.

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Hassan, Mohamad Zaki, Siti Amni Roslan, S. M. Sapuan, Zainudin A. Rasid, Ariff Farhan Mohd Nor, Mohd Yusof Md Daud, Rozzeta Dolah i Mohd Zuhri Mohamed Yusoff. "Mercerization Optimization of Bamboo (Bambusa vulgaris) Fiber-Reinforced Epoxy Composite Structures Using a Box–Behnken Design". Polymers 12, nr 6 (17.06.2020): 1367. http://dx.doi.org/10.3390/polym12061367.

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The objective of this research is to optimize the alkaline treatment variables, including sodium hydroxide (NaOH) concentration, soaking, and drying time, that influence the mechanical behavior of bamboo fiber-reinforced epoxy composites. In this study, a Box–Behnken design (BBD) of the response surface methodology (RSM) was employed to design an experiment to investigate the mercerization effect of bamboo fiber-reinforced epoxy composites. The evaluation of predicted tensile strength as a variable parameter of bamboo fiber (Bambusa vulgaris) reinforced epoxy composite structures was determined using analysis of variance (ANOVA) of the quadratic model. In this study, a total of 17 experiment runs were measured and a significant regression for the coefficient between the variables was obtained. Further, the triangular and square core structures made of treated and untreated bamboo fiber-reinforced epoxy composites were tested under compressive loading. It was found that the optimum mercerization condition lies at 5.81 wt.% of the NaOH, after a soaking time of 3.99 h and a drying time of 72 h. This optimum alkaline treatment once again had a great effect on the structures whereby all the treated composite cores with square and triangular structures impressively outperformed the untreated bamboo structures. The treated triangular core of bamboo reinforced composites gave an outstanding performance compared to the treated and untreated square core composite structures for compressive loading and specific energy absorbing capability.

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Widyowijatnoko, Andry, i Rakhmat Fitranto Aditra. "Application of Bamboo Radial Compression Joint for Tension and Knock-Down Structures". Indonesian Journal of Science and Technology 3, nr 1 (10.04.2018): 40. http://dx.doi.org/10.17509/ijost.v3i1.10807.

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Bamboo applications become popular recently by the community due to the rise of environmental awareness, including for post-disaster building. Two aspects of post-disaster buildings were considered: i.e. its performance and its recyclability. This research explore ability of bamboo as tensile structure, and also as knock-down structure. Bamboo radial compression (barcom) connection was explored by these aspects. Barcom joint is one of the solutions to be effectively used for gaining the tensile strength of bamboo by converting tensile load parallel to fiber into radial compression perpendicular to fiber. Barcom joint was tested to acquire its load capacity and its future improvement. The load test showed that the barcom connection could reach up to 21.61 kN. To improve this capacity, either better wire or special washer design could be proposed. The adaption in previous built structure (i.e. Three Mountain Building in Serangan island, Bali and knock-down bamboo geodesic dome in Colombia) was used as a case-study. In the construction of Three Mountain Building, barcom joint was used to hang the bamboo rafters and acts as tension-like member. Meanwhile, the use of barcom joint in Colombia was intended to connect the bamboo with the steel bowl connector which could be dismantled and reused again many times.

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Song, Bing Tao, Hui Deng, Lei Tan i Hua Wu Liu. "Fiber Structure and Basic Properties of Bamboo Pulp". Advanced Materials Research 332-334 (wrzesień 2011): 874–77. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.874.

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Bamboo fiber, including natural bamboo fiber and recycled bamboo fiber, is a novel textile material of great economic value. The bamboo pulp fiber has been well received, whereas the development of the natural bamboo fiber is limited. The morphological structures of longitudinal and transverse sections were observed. The mechanical performance of bamboo pulp fiber was examined and the advantages of the fabric made of bamboo pulp fiber were discussed.

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Amada, Shigeyasu. "Hierarchical Functionally Gradient Structures of Bamboo, Barley, and Corn". MRS Bulletin 20, nr 1 (styczeń 1995): 35–36. http://dx.doi.org/10.1557/s0883769400048909.

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Bamboo and certain other plants have excellent characteristics based on functionally gradient structures. Figure 1 shows a cross section of bamboo, corn, and barley culms. The collection of solid dots in bamboo is called the bundle sheath, which acts as fibers for the plant. These bundle sheaths are shown in the magnified photograph of corn and barley. These two plants are made of composite materials reinforced by fibers of the bundle sheath; the fiber strength is about 10 times that of the matrix. Furthermore, the fiber distribution is dense in the outer region and sparse in the inner region. It can be said that the fiber distribution forms a gradient structure. The fibers in barley are sparse in the narrow cross section and are different from the fibers in corn and bamboo. The number of honey-comb-shaped cells in barley is higher on the outside than the inside region. Therefore, barley also has a gradient structure. These relations of the microscopic gradient structure are displayed graphically by the cross-sectional photographs. Figures 1a and 1b present the fiber contents of bamboo and corn, respectively, with respect to radius measured from the outer radius. Figure 1c gives the gradient distribution of the cell number for barley with respect to radius. These gradient features probably relate to the bending-stress distribution caused by wind, rain, and snow—the so-called environmental loads.

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Moreira, Luis Eustáquio, i Khosrow Ghavami. "Limits States Analysis for Bamboo Pin Connections". Key Engineering Materials 517 (czerwiec 2012): 3–12. http://dx.doi.org/10.4028/www.scientific.net/kem.517.3.

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In this paper the result of an investigation using finite element model (FEM) of a simple bamboo pin joint as commonly used in many types of structures especially in plane and space structures is presented. The nonlinear pressure distributions at the contact area of a steel pin in a bamboo circular hole were analyzed considering the anisotropy and heterogeneity of the functionally graded material. In turn the obtained results of the analysis are compared with those based on simplified constitutive models assuming isotropic and homogeneous representations for bamboo. The experimental results are compared with the results obtained from both methods. The assumption of the bamboo as an orthotropic material presented more reliable design method of bamboo structures Although the different maximum forces applied in each case, local stress are relatively high on both cases, showing that this type of connection depends on local reinforcements to be a safe connection. Finally the suggestion that bamboo joints at the hole can be improved by reducing the stress concentration factors, through applying reinforcing elements such as natural fiber straps composites close to the hole.

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Zhong, Li Li, Chun Yu Wei, Yan Xiao i Bo Shan. "The Regional Expression in Utilization of Material Construction: The Landscape Sketch Practice of the Modern Bamboo Structures in Meixi Lake Project". Key Engineering Materials 517 (czerwiec 2012): 150–57. http://dx.doi.org/10.4028/www.scientific.net/kem.517.150.

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Based on the practice of the landscape sketch bamboo buildings of Meixi Lake in Changsha, this thesis, from the perspective of material construction, aims to perceive the region and bamboo structure, to concern the bamboo frame form and space construction, to try to integrate bamboo structure with other materials and to explore the formation of bamboo-framed building and the related regional expression. Excavating bamboo value, improving bamboo performance and developing bamboo structural building can satisfy requirements as the main part of construction and expression in architecture and promote the using level of GluBam. Technological innovation such as suitable construction skills and reasonable structural system can promote the effective utilizing bamboo and development of modern bamboo structure. It is a alternative green building system for sustainable development.

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Liu, Pengcheng, Qishi Zhou, Feiyang Fu i Wei Li. "Bending Strength Design Method of Phyllostachys edulis Bamboo Based on Classification". Polymers 14, nr 7 (30.03.2022): 1418. http://dx.doi.org/10.3390/polym14071418.

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Phyllostachys edulis (P. edulis) bamboo is the most widely distributed and used bamboo species, and it is an ideal building material. With the in-depth implementation of the sustainable development strategy, modern bamboo structures have broad application prospects in green buildings. In order to promote the efficient utilization of bamboo resources and facilitate the design and application of bamboo structures, the bending strength test and classification of P. edulis bamboo were carried out, the factors affecting the reliability were analyzed, and the design values of the bending strength of P. edulis bamboo were proposed based on the reliability analysis. The research results show that dividing P. edulis bamboo into three levels (grade I, grade II, and grade III) can achieve efficient use of P. edulis bamboo resources; 75% fitting data points and normal distribution were used to analyze the reliability of the bending strength of P. edulis bamboo. The analysis of factors affecting reliability makes the calculation of strength design values more reliable. The reliability increases with the increase of the load ratio and the partial factor for resistance. Under the same load ratio and reliability, the partial factor for resistance of the combination of constant load and snow load is the largest, and the partial factor for resistance of the combination of constant load and office building load is the smallest. Under the same load combination and reliability, the partial factor for resistance decreases as the load ratio increases. Under the same load ratio and load combination, the partial factor for resistance of grade III is the largest, and grade I is the smallest. The bending strength design values of grade I, grade II, and grade III are 29.54 MPa, 29.62 MPa, and 30.63 MPa, respectively. This paper innovatively proposed the design values of bending strength of P. edulis bamboo based on classification. The P. edulis bamboo grading method established in this paper and the bending strength design values of P. edulis bamboo proposed can provide references for the design and engineering application of bamboo structures.

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Skuratov, Sergey, Galina Danilova-Volkovskaya, Edvard Yanukyan i Mikhail Beilin. "Bamboo as a Unique Ecological Building Material of the XXI Century: Bamboo Description, Bamboo Physical and Mechanical Properties Studies". Materials Science Forum 1043 (18.08.2021): 149–54. http://dx.doi.org/10.4028/www.scientific.net/msf.1043.149.

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The description of bamboo varieties is given, the material structure and the application scope are considered. The characteristics of the advantages and disadvantages of bamboo as a structural building material are given. The results of determining the mechanical properties of bamboo are investigated. The normative documents (ISO standards) regulating the use of bamboo in construction are presented. There has been a lag in the operating instructions production for bamboo use in construction. The researchers who studied the bamboo properties and nodal junctures of bamboo rods, as well as the architects and designers of original bamboo structures are indicated.

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Lv, Bo, Qi Tie Xie, Jie Xu, Tian Yuan Jiang i Yu Shun Li. "A New-Type Bamboo-Steel Composite Structural Member, Box Section Bamboo-Steel Composite Beams". Applied Mechanics and Materials 94-96 (wrzesień 2011): 490–94. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.490.

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Bamboo-steel composite structure contains all kinds of composite structural members, widen the applied range of bamboo and implement the diversification of component materials and forms in building structures. The paper presents a new-type box section bamboo-steel composite beams on the basis of I-section bamboo-steel composite beams, which take cold-formed thin-wall steel as the backbone, pastes bamboo plywood outer surface of steel sheet with structural adhesive, combines into box section bamboo-steel composite beams.

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Gatóo, Ana, Bhavna Sharma, Maximilian Bock, Helen Mulligan i Michael H. Ramage. "Sustainable structures: bamboo standards and building codes". Proceedings of the Institution of Civil Engineers - Engineering Sustainability 167, nr 5 (październik 2014): 189–96. http://dx.doi.org/10.1680/ensu.14.00009.

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Xiao, Yan, Bo Shan, Guo Chen, Quan Zhou, Liyong She i Ruizhen Yang. "Developing Modern Bamboo Structures for Sustainable Construction". IABSE Symposium Report 96, nr 11 (1.01.2009): 14–21. http://dx.doi.org/10.2749/222137809796078333.

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Kawanoue, T., H. Kaneko, M. Hasunuma i M. Miyauchi. "Electromigration‐induced void growth in bamboo structures". Journal of Applied Physics 74, nr 7 (październik 1993): 4423–29. http://dx.doi.org/10.1063/1.354413.

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Hong, Chaokun, Haitao Li, Rodolfo Lorenzo, Gang Wu, Ileana Corbi, Ottavia Corbi, Zhenhua Xiong i Dong Yang and Huizhong Zhang. "Review on Connections for Original Bamboo Structures". Journal of Renewable Materials 7, nr 8 (2019): 713–30. http://dx.doi.org/10.32604/jrm.2019.07647.

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Hong, Chaokun, Haitao Li, Zhenhua Xiong, Rodolfo Lorenzo, Ileana Corbi, Ottavia Corbi, Dongdong Wei, Conggan Yuan, Dong Yang i Huizhong Zhang. "Review of connections for engineered bamboo structures". Journal of Building Engineering 30 (lipiec 2020): 101324. http://dx.doi.org/10.1016/j.jobe.2020.101324.

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Dange, Swapnil, i S. V. Pataskar. "Bamboo Panel in Building Structure". International Journal of Advance Research and Innovation 5, nr 3 (2017): 34–41. http://dx.doi.org/10.51976/ijari.531706.

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Due to terrific growth of population all over India, there is increase in demand for buildings to provide adequate shelter for people. Because of this reason, there is increase in concrete structures and other type of structure. The concrete structures are very heavy as compared to wooden structure. So these concrete structures can be replaced by wooden composites materials and other type of materials. The implementation of new technology will result in waste material being efficiently utilized as sustainable resources for the industry. In this study, bamboo is used as a renewable material along with saw dust and coconut husk as agricultural waste. Bamboo is fast growing and ecologically friendly material for structural applications is being considered as quite appropriate. Bamboo composites panels can provide tailored solution to the eco- housing initiatives at cheaper coasts. In this study the attempt has been made to develop engineered bamboo composite panels for use in housing.

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Wang, Siyi, Jiayang Wang i Kyriakos Komvopoulos. "Mechanical Behavior of Bamboo-Like Structures under Transversal Compressive Loading". Biomimetics 8, nr 1 (5.03.2023): 103. http://dx.doi.org/10.3390/biomimetics8010103.

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Inspired by many biological structures in nature, biomimetic structures demonstrate significantly better mechanical performance than traditional engineering structures. The exceptional mechanical properties of natural materials are attributed to the hierarchical architecture of their structure. Consequently, the implementation of biomimetic structures in the design of lightweight structures with tailored mechanical properties has been constantly increasing in many fields of science and engineering. The bamboo structure is of particular interest because it combines a light weight and excellent mechanical properties, often surpassing those of several engineering materials. The objective of this study was to evaluate the mechanical behavior of bamboo-inspired structures subjected to transversal compressive loading. Structures consisting of bamboo-like thin-walled hexagonal building blocks (unit cells) with different dimensions were fabricated by stereolithography 3D printing and their mechanical performance was evaluated by mechanical testing, high-speed camera video recordings, and finite element simulations. The results of the elastic modulus, yield strength, and strain energy density at fracture were interpreted in terms of characteristic dimensions of the unit cell structure. The failure process was elucidated in the light of images of the fractured structures and simulation strain maps. The results of this study demonstrate that ultralight bamboo-like structures with specific mechanical characteristics can be produced by optimizing the dimensions and number density of the hexagonal unit cell.

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Tahmasebinia, Faham, Yuanchen Ma, Karl Joshua, Saleh Mohammad Ebrahimzadeh Sepasgozar, Yang Yu, Jike Li, Samad Sepasgozar i Fernando Alonso Marroquin. "Sustainable Architecture Creating Arches Using a Bamboo Grid Shell Structure: Numerical Analysis and Design". Sustainability 13, nr 5 (1.03.2021): 2598. http://dx.doi.org/10.3390/su13052598.

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Bamboo is known as a sustainable alternative for green building design, and it has been tied culturally to some regions around the world. However, bamboo’s structural strength for different design scenarios needs more investigation before it is widely adopted. Timber and bamboo have similar mechanical properties, but the latter is a repaid, renewable, sustainable, disaster-resilient system and is versatile, which has more advantages for construction purposes. Natural bamboo and its derivatives have been considered as a high-demand green and environmentally responsible alternative construction material, and this interest is increasing globally. Because of the rapid growth rate and large developing area, it is more useable than the limited timber resource. However, natural bamboo has an anisotropic and nonhomogeneous material property, which varies in multiple directions. There is limited engineering data and investigation of bamboo material and its use in and impact on construction. In this study, three different bamboo models were analyzed by Strand7; each of them had different features in structure and in the major construction material. A new model was proposed by improving the three given structures and was maximized in the mechanical capacity. Some design guidelines were proposed based on the analysis and comparison of different bamboo structures. The model will replace natural bamboo with bamboo scrimber, which is an engineered bamboo derivative that has more uniform material properties.

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Gyansah, Lawrence, i A. M. Abd El-Aty. "Experimental Study of the Deformation Behaviour and Mechanical Properties of Fresh Reinforced Bamboo". Advanced Materials Research 1102 (maj 2015): 173–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1102.173.

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A bstract. This paper investigates the deformation behavior of reinforced fresh bamboo subjected to static-compressive loading condition. Crushing strength test was performed using Uniaxial Compression Machine with maximum loading capacity of 1500 kN. The data is plotted as strength to weight ratio versus height, strength to volume ratio versus height, failure stress versus height, load versus time of failure and load to height ratio versus time of failure. Result shows that increase in height of the fresh reinforced bamboo increases the strength and vice versa. The moisture content also has significant influence on the strength of the fresh reinforced bamboo. The moisture content reduced the strength of the fresh reinforced bamboo by 21.8 %. This percentage is really significant in structural analysis since it can cause catastrophic failure to structures. Concrete is significant in reinforcing bamboo structures for a better strength. The crushing stresses for fresh reinforced bamboo of heights 250 , 210 ,170 , 130 and 90 mm were found to be 26.09 , 25.52 , 24.85 , 21.97 , 21.86 MPa respectively. The failure stress of the bamboo is about say 1.26 M times the weight of the bamboo per square meter. The specific compressive strength which explains the bending moment per kilogram of the bamboo specimen also increases with increases in height. Failure stress to weight ratio decreases with increases with the height of the bamboo. Strength to volume ratio also decreases with increases with the height from the bamboo.

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Xinping, Yuan, Ji Chenhao, Wang Xueying, Luo Zilong i Jin Yucheng. "Research on the Applicability of Low-tech Bamboo Architecture in New Rural Construction". MATEC Web of Conferences 175 (2018): 04013. http://dx.doi.org/10.1051/matecconf/201817504013.

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Bamboo resources are abundant in China, and low-tech bamboo structures are used to maximize the sustainable development of new rural construction. This paper will deeply explore, study and analyze the issue of low-tech bamboo construction, then further analyze its applicability in new rural construction, and ultimately find a feasible plan about bamboo construction, so as to take effective measures to combine new rural construction and green science and technology.

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Disén, Kira, i Peggi L. Clouston. "BUILDING WITH BAMBOO: A REVIEW OF CULM CONNECTION TECHNOLOGY". Journal of Green Building 8, nr 4 (wrzesień 2013): 83–93. http://dx.doi.org/10.3992/jgb.8.4.83.

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Interest in the engineering performance of bamboo is on the rise primarily due to its rapid regenerative qualities and high strength-to-weight ratio. It has been a standard, sustainable building material for thousands of years in Asia and South America, where it grows naturally. Although there are many examples of magnificent bamboo structures, standards and documentation on safe and reliable bamboo design are scarce, particularly for connection design. Traditional connections involve friction-tight lashings (eg. ropes and cords of dried grasses) and pin-and-socket connections such as dowels and pegs, but more recent advances have involved integration with steel hardware and concrete. This paper presents bamboo as a feasible alternative building material and presents a review of past, current and emerging technologies to join hollow bamboo culms in structural applications. The paper's intent is to give an overview of the current state of bamboo connection technology and to promote developments in the emerging field of bamboo engineering. Recent technological advances and visionary architects have proven that it is possible to create safe structures that are not only sustainable but have tremendous potential for use in disaster relief and quick-build scenarios.

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Mofidi, Amir, Judith Abila i Jackson Tsz Ming Ng. "Novel Advanced Composite Bamboo Structural Members with Bio-Based and Synthetic Matrices for Sustainable Construction". Sustainability 12, nr 6 (22.03.2020): 2485. http://dx.doi.org/10.3390/su12062485.

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This paper experimentally investigates the properties of unprecedented new advanced composite structural members in compressions made of bamboo culms formed with different bio-based and synthetic matrices. Due to extensive CO2 emissions corresponded to the production of construction materials, it is essential to produce high-performance environmental-friendly construction materials from bio-based renewable resources such as bamboo. However, the use of bamboo culms in construction has been hindered by their inherent specific geometric hollow shape. To address this issue, small-diameter bamboo species were used in this study to form solid structural composite cross-sections to desired shapes. An experimental study was conducted on the compressive properties of six composite structural members made of commonly available bamboo species (Phyllostachys edulis or Moso) with different matrices including a bio-based furan resin, a cementitious grout, and epoxy. In order to prevent premature buckling of bamboo components within the engineered columns, and in an attempt to propose a bio-based structural column, three layers of hemp wrap where applied to provide confinement for bamboo culms. The results of the tests confirm that the bamboo-furan and bamboo-grout composite columns both have the potential to reach a remarkable compressive strength of 30 MPa. However, the bamboo-epoxy composite specimen, considering the excellent mechanical properties of the epoxy matrix, delivered a benchmark to demonstrate the potentials of bamboo-based structural sections by reaching 76 MPa compressive strength before crushing. The bamboo-epoxy composite provided new prospects for future work on the 100% bio-based versions of the bamboo-based sections with improved bio-matrices (by using bio-epoxy and improved furan resins with compatible mixes) and innovative confinement types. With the promising results of this study, there is a real opportunity of creating contemporary engineered bamboo-based structures as a sustainable replacement to the existing steel, concrete and timber structures.

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Oparowski, J. M., T. S. Sriram i V. Ambrose. "The Determination of Copper Composition Profiles in Semiconductor Device Aluminum Interconnect Electromigration Test Lines using Electron Probe Microanalysis (EPMA)". Microscopy and Microanalysis 4, S2 (lipiec 1998): 618–19. http://dx.doi.org/10.1017/s1431927600023217.

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Extensive long range transport of copper has been observed in polycrystalline aluminum-copper (Al-Cu) interconnects subjected to accelerated electromigration testing. Cu depletion is believed to be the rate limiting factor for electromigration damage accumulation. It is not clear if this is also the case for Al-Cu interconnects with bamboo/near-bamboo microstructures. In order to understand this phenomenon, Cu transport under electromigration conditions in bamboo microstructures has to be characterized quantitatively. This paper describes the procedure used to determine Cu distributions on a series of bamboo test structures subjected to accelerated electromigration (EM) testing. Copper composition profiles were determined for these structures through the use of electron probe microanalysis (EPMA) techniques and customized corrections for non-standard interaction volumes.Aluminum (0.5 wt.% Cu) interconnect test line structures were fabricated with four metal layers and surrounding silicon dioxide dielectric. Following EM testing, the samples were deprocessed to expose the test lines at metal layer three, as shown in Figure 1.

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Wang, Yuqian, Mingyan Jiang, Yinshu Huang, Zhiyi Sheng, Xiao Huang, Wei Lin, Qibing Chen, Xi Li, Zhenghua Luo i Bingyang Lv. "Physiological and Psychological Effects of Watching Videos of Different Durations Showing Urban Bamboo Forests with Varied Structures". International Journal of Environmental Research and Public Health 17, nr 10 (14.05.2020): 3434. http://dx.doi.org/10.3390/ijerph17103434.

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This study illustrated the physiological and psychological effects of watching videos of different durations showing bamboo forests with varied structures. Physiological indicators, including EEG (electroencephalogram), blood pressure, skin conductance, and pulse, were monitored in 180 Chinese university students (mean age: 20.72 ± 2.56 years) while they were watching bamboo videos. Before and after watching the videos, their psychological indicators, including positive and negative moods, were measured using the Profile of Mood States questionnaire. After watching the bamboo videos of different durations, all of the physiological indicators responded to the stimulation after only 1 min. The indicators showed different trends at 1, 3 and 5 min. EEG decreased and then was maintained at a stable level after 1 min, and the high β, low β, and α waves had no significant differences between 1, 3 and 5 min. Blood pressure dropped to a stable state after 3 min, and the decline was significantly different greater after 3 min than after 1 min. Skin conductance increased for 1 to 5 min, and it did not stabilize after a long time (5 min). Pulse decreased after 1 min but increased after 5 min. After watching the videos with bamboo of varying structures, the physiological and psychological indicators showed significantly different changes. Skin conductance significantly increased (mean value: 6.78%), and the amount of sweat was more effectively reduced, thereby reducing tension, when the students viewed videos of sympodial bamboo forests compared with monopodial bamboo forests. Bamboo forests with a higher canopy density (0.83–0.85) could significantly decrease α waves (mean value: 1.50 Hz), relaxing the human body. High β and low β waves showed greater decreases, with tension reduced more effectively, when bamboo forests with a low tilt ratio (< 1.5%) were viewed. Bamboo forests with neat undergrowth could have more beneficial physiological and psychological effects on the human body.

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Wei, Xin, Haiying Zhou, Fuming Chen i Ge Wang. "Bending Flexibility of Moso Bamboo (Phyllostachys Edulis) with Functionally Graded Structure". Materials 12, nr 12 (23.06.2019): 2007. http://dx.doi.org/10.3390/ma12122007.

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As one of the most renewable and sustainable resources on Earth, bamboo with its high flexibility has been used in the fabrication of a wide variety of composite structures due to its properties. A bamboo-based winding composite (BWC) is an innovative bamboo product which has revolutionized pipe structures and their applications throughout China as well as improving their impact on the environment. However, as a natural functionally graded composite, the flexibility mechanism of bamboo has not yet been fully understood. Here, the bending stiffness method based on the cantilever beam principle was used to investigate the gradient and directional bending flexibility of bamboo (Phyllostachys edulis) slivers under different loading Types during elastic stages. Results showed that the graded distribution and gradient variation of cell size of the fibers embedded in the parenchyma cells along the thickness of the bamboo culm was mainly responsible for the exhibited gradient bending flexibility of bamboo slivers, whereas the shape and size difference of the vascular bundles from inner to outer layers played a critical role in directional bending flexibility. A validated rule of mixture was used to fit the bending stiffness under different loading Types as a function of fiber volume fraction. This work provides insights to the bionic preparation and optimization of high-performance BWC pipes.

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Li, Quanfeng, Xiaodong Ji, Zihao Jin, Jin Xu, Shihan Yang i Shumin Lv. "Numerical Simulation of the Shear Capacity of a GFRP-Strengthened Natural Bamboo-Bolt Composite Joint". Polymers 14, nr 15 (26.07.2022): 3024. http://dx.doi.org/10.3390/polym14153024.

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As an ecological green building material, natural bamboo has many advantages such as a light weight, high strength, and short growth cycle. Natural bamboo is widely used in landscape architecture and fabricated structures. However, in bamboo building structures, the most common bolted joints often appear cleaved along the grain. In this paper, glass fiber-reinforced polymer (GFRP) is designed to wrap and improve the shear capacity of natural bamboo-bolt composite joints. According to the corresponding material parameters, the finite element model of composite joints is established, and the key influencing variables of the bearing capacity, namely the bolt diameter, bamboo tube outer diameter, and screw end distance, are analyzed. In addition, according to the European analytical yield model of bolted connections, the analytical calculation method of the bearing capacity is proposed and compared with the experimental and simulated values. The results showed that the numerical model and the modified analytical model can suitably describe the bearing capacity of composite joints, and a higher bolt diameter, along with the bamboo outer diameter, will lead to a higher ultimate load of the composite joints. Moreover, the bearing capacity of composite joints has no obvious relationship with the end spacing.

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Pitake, Prof Satish A. "Performance Evaluation of Bamboo Reinforced Concrete Beam". International Journal for Research in Applied Science and Engineering Technology 10, nr 6 (30.06.2022): 996–1002. http://dx.doi.org/10.22214/ijraset.2022.44028.

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Abstract—Bamboo, which is a fast-growing and ecologically friendly material for structural applications, is being considered quite appropriate. Which consist property similar to the steel so bamboo drew the attention of many researchers for use as reinforcement in concrete. Some physical and mechanical property test are conducted in the specimen of messy and manga bamboo. Moisture content test, density test, compressive test & tensile test. The tensile strength of bamboo is high and reached up to 109.9 to 118.37 mpa. This makes bamboo a pretty alternative to steel in reinforcement loading applications. In this study, it has been attempted to develop engineered bamboo structural elements for use in low-cost housing or G+1 structures. Keywords—Bamboo Reinforced Concrete, Universal testing machine (UTM), Tensile Strength, Compression Strength, Flexural Strength.

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Su, Minglei, Rong Zhang, Huairui Li, Xiaobei Jin, Jingpeng Li, Xianfeng Yue i Daochun Qin. "In situ deposition of MOF199 onto hierarchical structures of bamboo and wood and their antibacterial properties". RSC Advances 9, nr 69 (2019): 40277–85. http://dx.doi.org/10.1039/c9ra07046j.

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MOF199 is deposited on moso bamboo and balsa wood under mild conditions. A uniform and dense MOF199 layer with perfect crystal morphology was successfully obtained on the hierarchical surface of both bamboo and wood.

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Tardio, Guillermo, Slobodan B. Mickovski, Alexia Stokes i Sanjaya Devkota. "Bamboo structures as a resilient erosion control measure". Proceedings of the Institution of Civil Engineers - Forensic Engineering 170, nr 2 (maj 2017): 72–83. http://dx.doi.org/10.1680/jfoen.16.00033.

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Sun, Haoxian, Haitao Li, Assima Dauletbek, Rodolfo Lorenzo, Ileana Corbi, Ottavia Corbi i Mahmud Ashraf. "Review on materials and structures inspired by bamboo". Construction and Building Materials 325 (marzec 2022): 126656. http://dx.doi.org/10.1016/j.conbuildmat.2022.126656.

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Tan, T., N. Rahbar, S. M. Allameh, S. Kwofie, D. Dissmore, K. Ghavami i W. O. Soboyejo. "Mechanical properties of functionally graded hierarchical bamboo structures". Acta Biomaterialia 7, nr 10 (październik 2011): 3796–803. http://dx.doi.org/10.1016/j.actbio.2011.06.008.

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Putri, Rumanintya Lisaria, Lya Rochmawati, Dodi Nandika i I. Wayan Darmawan. "Pengawetan Bambu dengan Metode Boucherie". Jurnal Ilmu Pertanian Indonesia 25, nr 4 (27.10.2020): 618–26. http://dx.doi.org/10.18343/jipi.25.4.618.

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Bamboo is known as fast-growing species that could be derived into various products. However, bamboo is suspectible to the wood destroying organisms. Preservation is one way to improve the service life of bamboo. This study aimed to analyze the effect of differences in anatomical structures of betung bamboo (Dendrocalamus asper Backer) and andong bamboo (Gigantochloa pseudoarundinaceae (Steudel) Widjaja), and the effect of pressure on the flow time and retention of entiblu preservative in the Boucherie method. Bamboo stems with diameters of 10-14 cm were cut in 1; 1,5; 2; and 2,5 m lengths. The bamboo stems with moisture content of around 30% were preserved by 5% of entiblu preservative solution. The data observed were the flow time of the preservative entiblu solution from base of the stem until dripping on the top of the bamboo culm, and the retention of preservative. The anatomical structure of the bamboo trunk before preserving was also observed. The results showed that the average flow times in andong bamboo and betung bamboo were 37.75 minutes and 41.50 minutes, respectively. The average retention of entiblu solution on andong bamboo was 3.49 kg/m³ and on betung bamboo was 3.60 kg/m³. Keywords: andong bamboo, betung bamboo, anatomical structure, boucherie method, entiblu preservative

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Zhao, Wei Feng, Jing Zhou i Guo Bin Bu. "Application Technology of Bamboo Reinforced Concrete in Building Structure". Applied Mechanics and Materials 195-196 (sierpień 2012): 297–302. http://dx.doi.org/10.4028/www.scientific.net/amm.195-196.297.

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Bamboo is mainly a tropical and subtropical plant which is found adequate in many countries. The strength of bamboo as concrete reinforcement is much lower than steel bar reinforcement. However, one of the merits is a cheap and replenishable agricultural resource and abundantly available. Due to excellent properties like high strength to weight ratio, high tensile strength and free-cutting and processing, bamboo as a potential reinforcement material in place of steel is widely available in concrete structural elements. The present paper introduces some of the existing studies and application technology of bamboo reinforced concrete elements in building structures, such as bamboo reinforced concrete columns, beams, slabs and walls.

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