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Articoli di riviste sul tema "Reinforced concrete Australia Design and construction"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 28 gennaio 2023

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1

Statton, Peter, e Michael Salu. "Analysis, Design and Construction of Complex Concrete Structures for the Water Treatment Industry". Key Engineering Materials 400-402 (ottobre 2008): 581–86. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.581.

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The design and construction of concrete water treatment and storage structures in Australia has catered for the existing markets. The next generation of these structures needs a more sophisticated approach. Engineers who analyse and design water treatment plants, or water and liquid storage structures, as well as other complex reinforced and pre-stressed concrete structures, will find this paper of interest. Advanced water treatment plants and water factories for recycling domestic and industrial waste water have introduced new complexities into concrete tank design. Two recently constructed Australian water purifying plants provide examples of the theoretical and practical challenges of designing and constructing the large and complex process vessels required by modern plants to produce large volumes of high-quality water.

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Elbasha, Nuri Mohamed. "LIGHTER HIGH STRENGTH CONCRETE BEAM". Scientific Journal of Applied Sciences of Sabratha University 2, n. 2 (27 settembre 2019): 17–26. http://dx.doi.org/10.47891/sabujas.v2i2.17-26.

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High strength concrete (HSC) has been used extensively in civil construction projects worldwide because it reduces the cross section and the weight of long construction members. In recent years a marked increase in the use of High Strength Concrete (HSC) has been evident in Australian building construction despite the fact that the current Australian design standard provides no design rules for such a material. Very limited information on the properties of HSC and its design and construction processes are available in Australia, although in recent times many studies have been undertaken to produce material and, more importantly, to determine its characteristic. In the last 20 years there has been extensive research to economically utilize new components to improve the quality of HSC. HSC produces smaller but stronger structural elements with large spaces available. It has been studied that the cost of using HSC instead of Normal Strength Concerete (NSC) in different types of constructions. This proved that structures constructed with HSC are lighter and economical compared with those constructed with NSC. In the long term durability significantly affects project costs. In other words after several years a concrete structure needs rehabilitation or in critical cases must be demolished, therefore the price of a project consists of initial costs plus those covering any rehabilitation. A huge amount of money could be saved by utilizing the durability characteristics of high strength concrete. This study presents recent information and the benefits of high strength concrete. Also, provides in brief an experimental proof that installing a helix with a suitable pitch and diameter in the compression zone of beams significantly enhances their strength and ductility. Therefore, designers could confidently use high-strength concrete and helical confinement to design long and light reinforced concrete beams.

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Wong, Koon Wan, e Vanissorn Vimonsatit. "Determination of Shear Capacity for Load Rating of Concrete Bridges to AS 5100.7-2017". Infrastructures 7, n. 11 (17 novembre 2022): 156. http://dx.doi.org/10.3390/infrastructures7110156.

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According to Modified Compression Field Theory (MCFT), the ultimate shear capacity of a reinforced concrete section depends on load effects (shear, moment, torsion, and axial force) caused by factored design loads. In many design standards, including Australian AS 5100.7, MCFT has been incorporated for bridge assessment, which requires a load rating to be carried out according to the loading of the nominated rating vehicle as prescribed in the standard. Recently, some approaches have been proposed for bridge load rating that have suggested using an iterative-search procedure to determine the shear capacity by proportionally increasing the load effects until the shear capacity and shear are equal. This paper describes several adverse effects of using the proportional load, which is not consistent with the characteristic of the vehicle loading, to determine the shear capacity for load rating. Numerical examples of two bridge beams, one simply supported and the other continuous, are presented to demonstrate that the characteristic of the load effects caused by a moving vehicle is not representable by proportional load effects. Furthermore, the current practice in the bridge load rating does not load rate the longitudinal steel capacity in resisting the axial force induced by the load effects of the rating vehicle. This paper presents a new approach to the load rating that separately accounts for the load effect for axial failure mode of the longitudinal steel. Finally, it is pointed out that locating the critical section where the rating factor is minimum is tedious but can be automated by integrating load rating into the analysis of load effects.

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4

Romanenko, S. M., e Y. P. Andriievska. "TECHNICAL INSPECTION OF THE STRUCTURE AND DEVELOPMENT OF THE STRUCTURE OF FRAMES WITH COLD-ROLLED THIN-WALLED PROFILES". Modern structures of metal and wood, n. 25 (agosto 2021): 119–29. http://dx.doi.org/10.31650/2707-3068-2021-25-119-129.

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Cold rolled steel structures have been known since the mid-19th century in the United States and Great Britain. Despite the advances in the development of cold-rolled structures, the level of their use was lower than that of hot-rolled structures. A significant factor that influenced this imbalance in application was the fact that there were no regulations. Into different countries of the world have their own national regulations for the calculation of cold-rolled steel structures, which have many controversies. In the European group includes the norms of the countries of the European Union, Great Britain, Hong Kong, Ukraine, Belarus, Kazakhstan; American group - the United States of America, Canada, Mexico, Australia, New Zealand, Brazil, Chile, Egypt. The regulations of such large countries as China, India and Russia have their own characteristics. The article presents the results of a technical survey of the load-bearing structures of the canopy. The survey was carried out to determine the bearing capacity of the roof load-bearing structures in relation to the location of the solar panels on the roof of the building. The construction of buildings and their structural parts from light steel thin-walled structures (profiles) is carried out in the form of light frames, the frames of which are successively connected into spatial systems. A new lightweight roof covering made of profiled sheet and a frame structure made of cold-rolled P-profile and C-profile elements for roofing and installation of solar panels are proposed. Such a coating is the most industrialized, easily and quickly erected. The analysis of constructive options for the effective placement of the profile of cold-rolled elements and joints of the frame and reinforced concrete run of the coating is carried out. The design of the frame was carried out in the software package " Лира САПР 2013" . The results of the work carried out served to draw up recommendations for restoring the properties of the load-bearing structures of the canopy, the development of design estimates and implementations into construction practice during the reconstruction of the canopy.

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Scutarasu, Constantin Sorin, Dan Diaconu-Şotropa e Marinela Barbuta. "Case Study on Modeling Fire Action Complexity in Fire Safety Engineering of Structures". Advanced Engineering Forum 21 (marzo 2017): 102–7. http://dx.doi.org/10.4028/www.scientific.net/aef.21.102.

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Important goals in the fire safety design, such as preventing loss of life and goods damage, are achieved by maintaining the stability of structures exposed to fire for a period of time established by norms and standards. Real fire scenarios confirm that the specific technical regulations which actually have a prescriptive character (both national and international) do not deal with sufficient possibilities regarding the assessment of structural fire safety. The new approach on structural safety, based on engineering notions, gives us additional prospects on it and it is included in the issues of the fire safety design of structures. A relatively new field of study, known by a few professionals focused on fire safety (but well acknowledged in the research area), fire safety design met with lots of changes and restructuring of the governing concepts and procedures and of the information with which they operate, due to the fast accumulation of experience in this area of engineering activity. Consequently, after countries such as Australia, Canada, New Zeeland or USA provided towards professionals specific technical regulations for fire safety design, groups of experts in these aforementioned countries have joined their forces to try to diminish the differences that exists between those regulations and to give a unitary character to them, a better conceptualized engineering approach of the fire safety design. The result: occurrence of the publication International Fire Engineering Guidelines (last edition from 2005). The systematic approach of fire safety design in constructions pointed, once again, the possibility of modular organization of this field of study, the relations between modules being established according to the objective or objectives in the fire safety design for a specified building. This article aims to put forward, from this modularized perspective, the study of the fire safety design of a building exposed to fire; hence, the practical part of the article exhibits the numerical simulation of initialization and development of the fire process for a large scale religious building. The main features of the building represent the amount of space that facilitates the spreading of smoke and warm gases and which increases the risk of damaging the structural reinforced concrete elements. Application calls to specific numerical simulation with a higher degree of credibility, such as those realized by the FDS (Fire Dynamics Simulation) software.

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6

Wilby, C. B. "Reinforced concrete design". Construction and Building Materials 1, n. 1 (marzo 1987): 58. http://dx.doi.org/10.1016/0950-0618(87)90068-7.

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7

Rady, Mohammed, Sameh Youssef Mahfouz e Salah El-Din Fahmy Taher. "Optimal Design of Reinforced Concrete Materials in Construction". Materials 15, n. 7 (2 aprile 2022): 2625. http://dx.doi.org/10.3390/ma15072625.

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The structural design process is iterative and involves many design parameters. Thus, this paper presents a controlled framework for selecting the adequate structural floor system for reinforced concrete buildings and efficiently utilizing the corresponding construction materials. Optimization was performed using an evolutionary algorithm to minimize the total construction cost, considering the costs of concrete, steel reinforcement, formwork, and labor. In the problem formulation, the characteristic compressive strength of concrete was treated as a design variable because it affects the mechanical performance of concrete. The design variables included the column spacings, concrete dimensions, and steel reinforcement of different structural components. The constraints reflected the Egyptian code of practice provisions. Because the choice of the structural floor system affects the design details, three systems were considered: solid slabs, flat slabs with drop panels, and flat slabs without drop panels. Two benchmark examples were presented, and the optimal design results of the structural floor systems were compared. The solid slab system had the lowest construction cost among the three structural floor systems. Comparative diagrams were developed to investigate the distribution of construction costs of each floor system. The results revealed that an adequate choice of design variables could save up to 17% of the building’s total construction cost.

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8

Kobielak, Sylwester. "Design and Construction of a Reinforced Concrete Dome". International Journal of Space Structures 5, n. 1 (marzo 1990): 39–47. http://dx.doi.org/10.1177/026635119000500104.

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9

Castel, Arnaud, Raoul François, Maria Paola Santisi d’Avila e Doug Jenkins. "New service limit state criteria for reinforced concrete in chloride environments". Corrosion Reviews 37, n. 1 (28 gennaio 2019): 21–29. http://dx.doi.org/10.1515/corrrev-2017-0100.

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AbstractIn chloride environments, reinforcement stress limits, intended to control flexural cracking, are one of the most important requirements for service limit state (SLS) design. However, concrete damage at the steel-concrete interface between bending cracks, so called cover-controlled cracking, is always correlated to areas of severe steel reinforcement corrosion. Based on the assumption that cover-controlled cracking should be limited, a model has been developed to provide alternative reinforcement stress limits in marine exposure conditions such as concrete in sea water, including permanently submerged, spray zone and tidal/splash zone, as well as coastal constructions located within 1 km of the shoreline. In this paper, the new reinforcement stress limitation is compared to the Australian Standards AS3600 concrete building code and AS5100.5 concrete bridge code provisions. Analysis shows that the new model is very sensitive to the reinforcement percentage of the cross-section. As a result, the existing AS3600 and AS5100.5 code provisions are more conservative than the new limitation for lightly to normally reinforced concrete cross-section. In this case, crack width control governs the SLS design. However, for normally to heavily reinforced concrete cross-section, the new model provides more conservative results suggesting that cover-controlled cracking governs the SLS design.

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10

Deineko, Andrei V., Valentina A. Kurochkina, Irina Yu Yakovleva e Aleksandr N. Starostin. "Design of reinforced concrete slabs subject to the construction joints". Vestnik MGSU, n. 9 (settembre 2019): 1106–20. http://dx.doi.org/10.22227/1997-0935.2019.9.1106-1120.

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Introduction. When erecting monolithic reinforced concrete floor slabs, a necessity of construction joints arises. The construction joints are the areas of structural weakening. The construction practice shows that the compliance with the correct technology of the construction joint arrangement is not a sufficient condition to ensure the strength balance of reinforced concrete floor slabs. As a result, the stress-deformation state calculated on the assumption of the concrete slab solidity deviates from the actual state. The relevance of the task is determined by the fact that the conformity of design and actual characteristics of the in-situ reinforced concrete structures as a whole depends on the correct calculations of construction joints. Materials and methods. The problem of implementing the construction joints in the monolithic floor slabs was considered by way of example of a residential building under construction. In the course of construction, pre-construction land surveys were carried out at the areas of the construction joint arrangement. Calculations of reinforced concrete structures using finite element method (FEM) were also performed. Results. As a result of the study, the actual deflections of the floor slabs were measured at the areas of the construction joints and FEM calculations were made on the same floor slabs, both those erected at once and those erected in stages subject to the construction joints. The difference between the calculated and actual deflections is conditioned upon the inaccurate conformity between the mathematical model and the real reinforced concrete structure, its erection and maintenance conditions. It should be noted that the deflection of horizontal reinforced concrete structures is only one of the stress-deformation state parameters that can be measured better than the others. It is shown that if the deflection of a real reinforced concrete structure does not correspond with the design estimation, the other stress-deformation state parameters will differ from the design estimation as well. Conclusions. The influence of joints can be taken into account in the scope of FEM computer-aided calculations with the explicit reproduction of the structure erection by pouring concrete, using engineering approach to the consideration of nonlinearity on the basis of the introducing reduction coefficients to the reinforced concrete effective modulus of elasticity. Solid composition modeling of reinforced concrete provides the best possibilities on taking all sorts of nonlinearity manifestations into consideration.

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Alnuaimi, A. S., e P. Bhatt. "Design of solid reinforced concrete beams". Proceedings of the Institution of Civil Engineers - Structures and Buildings 159, n. 4 (agosto 2006): 197–216. http://dx.doi.org/10.1680/stbu.2006.159.4.197.

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12

MIYAZUMI, Katsuhiko, Masashi MURAKAMI e Kiyoshi OGAWA. "DESIGN AND CONSTRUCTION OF A TALL REINFORCED CONCRETE STACK". AIJ Journal of Technology and Design 6, n. 10 (2000): 71–76. http://dx.doi.org/10.3130/aijt.6.71_1.

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13

Otani, Shunsuke. "Earthquake Resistant Design of Reinforced Concrete Buildings". Journal of Advanced Concrete Technology 2, n. 1 (2004): 3–24. http://dx.doi.org/10.3151/jact.2.3.

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14

Bagnoli, Matteo, Ernesto Grande e Gabriele Milani. "Reinforced Concrete Infilled Frames". Encyclopedia 2, n. 1 (9 febbraio 2022): 473–85. http://dx.doi.org/10.3390/encyclopedia2010030.

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Masonry-Infilled Reinforced Concrete Frames are a very widespread structural typology all over the world for civil, strategic or productive uses. The damages due to these masonry panels can be life threatening to humans and can severely impact economic losses, as shown during past earthquakes. In fact, during a seismic event, most victims are caused by the collapse of buildings or due to nonstructural elements. The damage caused by an earthquake on nonstructural elements, i.e., those not belonging to the actual structural body of the building, is important for the purposes of a more general description of the effects and, of course, for economic estimates. In fact, after an earthquake, albeit of a low entity, it is very frequent to find even widespread damages of nonstructural elements causing major inconveniences even if the primary structure has reported minor damages. In recent years, many territories have been hit worldwide by strong seismic sequences, which caused widespread damages to the nonstructural elements and in particular to the masonry internal partitions and the masonry infill panels of the buildings in reinforced concrete, with damage to the floor and out-of-plane expulsions/collapses of single layers. Unfortunately, these critical issues have arisen not only in historic, but also in recent buildings with reinforced concrete, in many cases exhibiting inadequate seismic behavior, only partly attributable to the intrinsic vulnerability of the masonry panels against seismic actions. Such problems are due to the following aspects: lack of attention to construction details in the realization of the construction, use of poor-quality materials, and above all lack of design tools for the infill masonry walls. In 2018, regarding the design of nonstructural elements, the formulation of floor spectra has been recently introduced in Italy. This entry article wants to focus on all these aspects, describing the state of the art, the literature studies and the design problems to be solved.

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Pradhan, Manisha, Swagatika Behera, Sidhant Bagh, Debashree Tarai e Abhijit Mangaraj. "Design and Construction of RCC Fencing Pole". International Journal for Research in Applied Science and Engineering Technology 10, n. 5 (31 maggio 2022): 787–93. http://dx.doi.org/10.22214/ijraset.2022.42318.

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Abstract: Fencing poles are one of the most widespread manmade features on Earth, and they May out stretch roads by an order of magnitude. One of the most durable and Efficient RCC fencing poles is constructed with the help of concrete. Properly made Reinforced concrete pole .The essential requirements for the protection of Poles for general purposes, we conducted impact test on the protection of reinforced Concrete poles by changing the height of the post & it's position to decreases the effect of impact energy. Fences have eluded systematic study for so long for good reasons. Fencing has become more popular architecture in many disciplines, from ecology to computing. Fences are globally everywhere used & they are often discussions of evaluation. For designing a RCC pole one has to consider all the possible loading and see that the Structure is safe against all possible loading condition. Keywords: RCC fencing pole, protection fence, impact energy, everywhere.

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Pilakoutas, Kypros, Maurizio Guadagnini, Kyriacos Neocleous e Stijn Matthys. "Design guidelines for FRP reinforced concrete structures". Proceedings of the Institution of Civil Engineers - Structures and Buildings 164, n. 4 (agosto 2011): 255–63. http://dx.doi.org/10.1680/stbu.2011.164.4.255.

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Cosenza, Edoardo, Carlo Greco e Marisa Pecce. "Nonlinear Design of Reinforced Concrete Continuous Beams". Structural Engineering International 1, n. 1 (febbraio 1991): 19–27. http://dx.doi.org/10.2749/101686691780617869.

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Redmond, Laura, Lawrence Kahn e Reginald DesRoches. "Design and Construction of Hybrid Concrete-Masonry Structures Informed by Cyclic Tests". Earthquake Spectra 32, n. 4 (novembre 2016): 2337–55. http://dx.doi.org/10.1193/051615eqs070m.

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Reinforced concrete buildings with masonry infill are vulnerable in earthquakes primarily because the masonry walls often fail due to out-of-plane forces and can trigger soft-story collapses. In order to prevent these failures, many engineers in the Caribbean have partially reinforced the infill walls and connected them to the reinforced concrete frame. This forms a hybrid concrete-masonry structure. Hybrid concrete-masonry structures have the potential to improve the seismic performance of many structures across the globe, as they are an easy adaptation from traditional unreinforced masonry infill. However, there is little codified guidance for this type of structure, and the influence of the masonry infill and dowel connections on the in-plane behavior of the frame is often neglected. This paper summarizes the current design and construction practices for hybrid concrete-masonry structures and assesses their seismic performance via cyclic tests on full scale test specimens. Based on the results of the experiment, a method is proposed to account for the dowel connections and the partially reinforced infill when designing hybrid concrete-masonry structures in earthquake zones.

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Izumi, K., T. Mitsuishi, H. Tominaga e K. Funamoto. "The Retrofitting Design and Construction of Reinforced Concrete Bridge Piers". Concrete Journal 34, n. 8 (1996): 29–36. http://dx.doi.org/10.3151/coj1975.34.8_29.

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Kaneko, Yutaro. "Stress Design and Construction of Reinforced Concrete Curved Surface Structures". IABSE Symposium Report 86, n. 5 (1 gennaio 2002): 15–20. http://dx.doi.org/10.2749/222137802815776469.

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Shchedrolosiev, O., O. Uzlov e K. Kyrychenko. "IMPROVING CONSTRUCTIVE AND TECHNOLOGICAL CONNECTING JOINTS OF REINFORCED CONCRETE PONTOON WITH A TRANSVERSE DIAPHRAGM AND A METAL TOWER IN A FLOATING COMPOSITE DOCK". Scientific Bulletin Kherson State Maritime Academy 1, n. 22 (2020): 142–52. http://dx.doi.org/10.33815/2313-4763.2020.1.22.142-152.

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The analysis of the known technical decisions in dock construction field, rationalizing production resources at composite docks construction is given. It is established that the available solutions do not specify the recommendations for lowering the metal content in the reinforced concrete pontoon of composite floating docks. As a result of the conducted research, the design of floating composite docks was improved by reducing sets in the reinforced concrete pontoon. The rationality of a pontoon design construction without installation of frames, floors, and beams under towers is substantiated. Technological recommendations for the transverse partitions installation between the inner boards in 4 spaces, i.e. in 3 meters in contrast to the classical design in which the distance between the partitions is 1.5 meters, were described. The analysis of the design features of the reinforced concrete pontoon connecting joints with the transverse diaphragm and the metal tower of the floating composite dock is carried out, the difficulties that arise are described. The design and technological recommendations for the construction of the reinforced concrete pontoon joints with the transverse diaphragm and the metal tower have been developed. The floating dock construction sequence and technological operations ensuring concrete’s strength, water tightness and frost resistance at intersection joints are described. Solutions that increase the local adhesion of concrete to cross-shaped parts and prevent its exfoliation have been developed. The traditional scheme of the composite dock construction and a structural joint of a metal tower with a reinforced concrete pontoon is given. The composite dock construction scheme and the construction scheme of the joints of the reinforced concrete pontoon with the transverse diaphragm and the metal tower, which are designed for the construction of floating composite docks with reduced metal content in the pontoon, have been improved.

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Bu, Na Rui, Huan Qing Cai, Run Shan Bai e Zhi Qiang Li. "Quality Inspection of Reinforced Concrete Structures and Reinforcement". Advanced Materials Research 479-481 (febbraio 2012): 1036–40. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1036.

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In the modern design and construction of building structures, building structural safety, reliability is a top priority for construction work. In combination with practical engineering quality inspection and reinforcement methods the building structure are analyzed and presented.

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Zhao, Dong Qi, Yi Jun Tang, Hui Li, Gui Feng Song e Feng Ling Guan. "The Application Research of Reinforced Concrete Multi-Ribbed Hollow Composite Slab in the Road Slab Culvert". Advanced Materials Research 368-373 (ottobre 2011): 307–11. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.307.

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Reinforced concrete cover in the road culvert cover design, in order to facilitate the construction, usually using precast reinforced concrete solid slab, but the overall cost is not low. This article researched a reinforced concrete multi-ribbed hollow composite slab, it based on the theory of reinforced concrete multi-ribbed slab structures, using a precast reinforced concrete ribbed slab as the bottom die, then poured reinforced concrete beams and panels rib ,and them constituted a whole stack of reinforced concrete ribbed hollow slab. This kind of cover, compared with the precast reinforced concrete solid cover, is not only good mechanical properties, high integrity, but also saving concrete, steel, and bottom slab appeared smooth and fine, lower construction cost.

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Besevic, M., M. Vojnic Purcar, L. Kozaric e S. Bursac. "Structural design of the radar station of “Besna Kobila” Serbia". IOP Conference Series: Materials Science and Engineering 1242, n. 1 (1 aprile 2022): 012005. http://dx.doi.org/10.1088/1757-899x/1242/1/012005.

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Abstract The location of the new radar station facility is located at the top of the Besna Kobila mountain in Serbia at an altitude of approximately 1904 m. The construction of the building is reinforced concrete. The building consists of ground floor and first floor with technical and other areas. From the 2nd to the 6th floor there is a communication central reinforced concrete core. At the level of the 6th floor, a platform was formed for storing equipment and supporting the antenna dome with a diameter of R = 15. The total height of the building with a dome is H = 37.0 m. Horizontal floor structures are in the form of reinforced concrete slabs supported on reinforced concrete walls 20 (30) cm thick, columns of different dimensions, and a system of reinforced concrete beams of different cross section. The vertical construction consists of load-bearing reinforced concrete columns, external and internal concrete walls. In the central part of the building, there is a staircase in the form of reinforced concrete slabs with a thickness of d = 16 cm, as well as reinforced concrete elevator core with a square base of approximately 560.0 cm. The calculation of the structure is performed for loads from its own weight, constant loads from the materialization of the object, loads from the equipment and for payloads: from snow and wind and seismic loads of intensity IX. The basic load of the dome is the wind according to the average speed of 70.0 m / sec (according to the measured data). The foundation of the building is on a reinforced concrete slab and reinforcements-capitals under the columns.

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B. Uy. "Modern design, construction and maintenance of composite steelconcrete structures: Australian experiences". Electronic Journal of Structural Engineering, n. 2 (1 dicembre 2007): 42–48. http://dx.doi.org/10.56748/ejse.802.

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Modern design, construction innovation and maintenance issues have been extensively utilised for composite steel-concrete building structures in Australia. This paper provides an overview of the design codes, innovative construction applications and maintenance issues for steel-concrete composite members in Australia. The paper initially provides an overview of the various codes of practice for steel-concrete composite members in Australia. In identifying construction innovation significant projects to adopt composite construction techniques are considered. Many of these projects have found that the national codes of practice have been lacking in guidance. This has thus been the focal point for much of the research into the area of steel-concrete composite members over the last two decades. The paper concludes with research that is currently being carried out which considers materials and solutions in composite structural forms which promote the concepts of sustainability and will inevitably be prominent in improved maintenance of steel structures in the future.

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Ren, Zhen. "Study on Structure Analysis of Prestressed Reinforced Concrete Inverted Siphon". Applied Mechanics and Materials 488-489 (gennaio 2014): 585–88. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.585.

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This paper adopt universal finite element calculation software to carry out force analysis for Shayubeigou prestressed reinforced concrete inverted siphon,computer is applied in analysis of prestressed reinforced concrete inverted siphon. Deducing variation law of the inverted siphons stress and displacement in construction process and operating process. The calculation results further shown design schemes rationality and safety. which provide reliable reference of design and construction for the prestressed reinforced concrete inverted siphon.

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Shi, Xiaona, Xian Rong, Lin Nan, Lida Wang e Jianxin Zhang. "A New Steel-Joint Precast Concrete Frame Structure: The Design, Key Construction Techniques, and Building Energy Efficiency". Buildings 12, n. 11 (14 novembre 2022): 1974. http://dx.doi.org/10.3390/buildings12111974.

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Assembled methods play a critical role in the construction of precast concrete structures. However, conventional dry-connections-like sleeve grouting joints in precast concrete structures lagged at a low construction and management efficiency with poor quality control. In this study, a novel steel joint for precast reinforced concrete beam-column components is proposed to improve constructability. New joints transform the assembled method from reinforced concrete members into a steel structure by setting a pre-embedded steel connector at both ends of reinforced concrete beams and columns, showing outstanding economic, durability, and fire resistance capabilities. The construction process, construction efficiency, economy, and energy consumption were discussed based on the material, structure, and construction hybrid characteristics. Numerical simulation and structural health monitoring methods are used to monitor and evaluate the deformation and stress state of the proposed system in the whole construction process, so as to optimize the construction scheme and ensure safe and orderly construction. The results reveal that the FEA-simulated values of key building components during construction are in good agreement with the actual monitoring values, which verifies the feasibility of the FEM models and provides a guarantee for construction safety; the construction period of the proposed assemble system is reduced by approximately 56% and 40%, compared with the conventional reinforced concrete frame structure and cast-in-place joints in the precast concrete frame structure, respectively. Meanwhile, the energy consumption of buildings decreases by 20%. This research provides a theoretical basis for the design, calculation, and application of assembled precast structural systems.

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28

Ali, Mir M., e Donald E. Grierson. "Nonlinear Design of Reinforced Concrete Frameworks". Journal of Structural Engineering 112, n. 10 (ottobre 1986): 2216–33. http://dx.doi.org/10.1061/(asce)0733-9445(1986)112:10(2216).

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29

Sun, Bao‐Jun, e Zhi‐Tao Lu. "Design Aids for Reinforced Concrete Columns". Journal of Structural Engineering 118, n. 11 (novembre 1992): 2986–95. http://dx.doi.org/10.1061/(asce)0733-9445(1992)118:11(2986).

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30

Moretti, Marina L., Theocharis Papatheocharis e Philip C. Perdikaris. "Design of Reinforced Concrete Infilled Frames". Journal of Structural Engineering 140, n. 9 (settembre 2014): 04014062. http://dx.doi.org/10.1061/(asce)st.1943-541x.0001042.

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31

Garcez, Estela O., Muhammad I. Kabir, Mahbube Subhani, Alastair MacLeod, Andras Fehervari, Mitchell Hall e Patrick Moulton. "Development of high strength self-compacting fibre reinforced concrete for prefabricated concrete industry". MATEC Web of Conferences 275 (2019): 02011. http://dx.doi.org/10.1051/matecconf/201927502011.

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Prefabricated construction is an emerging industry in Australia and considered a key mechanism to boost productivity in the construction industry. The use of fibre reinforced concrete has a huge potential in the prefabricated industry as the concrete can be delivered straight to the precast mould, eliminating in many cases the steel reinforcement, thus increasing production quotas and cost savings. Such results can be further improved by utilising self-compacting concrete reinforced with fibres. Although the use of steel fibres as reinforcement is now well established, in the precast industry thin walls and shape of the moulds can be a limitation to steel fibre as well as work health and safety concerns for handling. Under such conditions, the use of polymeric fibres can be extremely beneficial, reducing labour hours and placement time as well as improving safety. This paper reports the development of high strength self-compacting fibre reinforced concrete for application in prefabricated concrete industry, exploring the effect of Forta-Ferro and ReoShore fibres on concrete fresh and mechanical properties.

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32

Zhadanovsky, Boris. "Mechanical processing of concrete and reinforced concrete with diamond tool". MATEC Web of Conferences 193 (2018): 03013. http://dx.doi.org/10.1051/matecconf/201819303013.

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The technology and organization of construction production using high-performance machines equipped with a diamond tool for machining concrete, concrete and stone surfaces is considered. Various installations, machines and mechanisms with a diamond tool for milling, grinding, drilling and cutting surfaces are presented. The design decisions of the grinding machine MSh-300, installations for machining the surfaces of facing slabs, a high-performance drilling machine and a concrete surface milling cutter are considered. An analysis of domestic and foreign installations has been carried out, which showed that the specific consumption of diamonds in domestic installations is lower with higher productivity. Having studied the sales statistics of manufacturers of individual machines and plants, as well as the positive feedback from implementing construction organizations, it is recommended to use, for the further prospect, high-performance machines and installations with a diamond tool in connection with an increase in the volume of reconstruction of industrial and civil facilities and the construction of transport highways.

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33

Liu, Hong Bin, e Meng Li. "Heightening Design and Construction of the Reinforcement Concrete Chimney in Heated State". Advanced Materials Research 243-249 (maggio 2011): 5610–13. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.5610.

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This paper introduced a project of reinforced concrete chimney with a height of 90 meters, which does not stop construction at nearly 200 degree Celsius, increased the height of the chimney with 10 meters. Reasonable structural measures were promoted to ensure the normal pouring of concrete chimneys. Compared with the normal condition, this measure is economical, low investment, feasible, etc. It provides far-reaching significance that increasing the height of the reinforced concrete chimney at the high temperature state.

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34

Aoyama, H. "Recent development in seismic design of reinforced concrete buildings in Japan". Bulletin of the New Zealand Society for Earthquake Engineering 24, n. 4 (31 dicembre 1991): 333–40. http://dx.doi.org/10.5459/bnzsee.24.4.333-340.

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Japan experienced a quick development of highrise reinforced concrete frame-type apartment building construction, about 30 stories high, in the last decade. Outline of this development is first introduced in terms of planning of buildings, materials, construction methods, earthquake resistant design and dynamic response analysis. This quick development was made possible by, among others, the available high strength concrete and steel. In an attempt to further promote development of new and advanced reinforced concrete building structures, a five-year national project was started in 1988 in Japan, promoted by the Building Research Institute, Ministry of Construction. Outline of this project is introduced in the second part of this paper. It aims at the development and use of concrete up to 120 MPa, and steel up to 1200 MPa.

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35

Cao, Yu, Yi Feng Zheng e Xiao Cong Xi. "Construction Control Analysis of Large Span Reinforced Concrete Arch Bridge". Advanced Materials Research 490-495 (marzo 2012): 1186–90. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.1186.

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Abstract (sommario):

Construction monitoring of reinforced concrete arch bridge mainly include both the linear of structure and structural stress, comprehensive tracking control must be conducted to make smoothly construction of bridge and meet the design requirements. Taking 2# bridge in International Tourism Resort District of Changbai Mountain as the engineering background, according to features of sub-situ construction control of main arch, a reasonable program of construction control is adopted, to ensure that status of structural internal forces meet the design requirements or in a secure area during the construction process or after completion.

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36

Zhang, Shao Jun. "The Construction Quality Control Measures of Reinforced Concrete Cover Research". Applied Mechanics and Materials 599-601 (agosto 2014): 1094–97. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1094.

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Abstract (sommario):

reinforced concrete structures reinforced protective layer deviation will directly affect the mechanical properties and durability of the reinforced concrete member, in relation to the structure of the use of safety and service life. The control to the protective layer of reinforced concrete structures include the following aspects: to do a good job of double sample, reinforced the blue prints.the design, production and installation of template engineering, reinforcing steel bar colligation molding process, placed, binding of fixed steel protective layer block and the requirements on the installation of the steel skeleton.

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37

Tan, Min. "Simulation Analysis Reinforced Concrete U-Shaped Aqueduct". Applied Mechanics and Materials 394 (settembre 2013): 345–48. http://dx.doi.org/10.4028/www.scientific.net/amm.394.345.

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This paper adopts finite element method to carry out simulation analysis for Enzitan reinforced concrete U-shaped aqueduct. Deducing variation law of the aqueducts stress and displacement in construction process and operational process, researching the rationality of aqueduct structure design scheme. Analysis results show that, Enzitan reinforced concrete aqueduct structure is reasonable, force of aqueduct structure is explicit, it meets the requirements for design.

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38

Kim, Seong-Min, Young Kyo Cho e Jun Ho Lee. "Advanced reinforced concrete pavement: Concept and design". Construction and Building Materials 231 (gennaio 2020): 117130. http://dx.doi.org/10.1016/j.conbuildmat.2019.117130.

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39

Zhang, Jing Wei, e Xian Xi Tang. "Analysis of Design and Calculation of Wall Protection for Railway Cable Well Construction". Advanced Materials Research 1145 (marzo 2018): 129–33. http://dx.doi.org/10.4028/www.scientific.net/amr.1145.129.

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Abstract (sommario):

The design and calculation of prefabricated assembled reinforced concrete wall protection of cable well plays an important role in ensuring the smooth construction works of railway cable wells. In this paper, taking Ningqi railway route cable well as an example, the design and inspection of prefabricated reinforced concrete wall protection of railway cable wells are analyzed. The calculation includes strength checking and stability checking. Through those checking’s the prefabricated assembled reinforced concrete wall protection of cable well is ensured to meet the requirements of engineering and mechanical performance. The research results also provide some reference and guidance to similar railway cable wells engineering.

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40

LEE, Jung ho, e Yasushi SHIMIZU. "STUDY ON SHEAR DESIGN EQUATIONS FOR REINFORCED CONCRETE MEMBERS". Journal of Structural and Construction Engineering (Transactions of AIJ) 61, n. 483 (1996): 121–28. http://dx.doi.org/10.3130/aijs.61.121_2.

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41

Cui, Wen, e Qin Luo. "Application Study on the Steel Fiber Reinforced Concrete". Applied Mechanics and Materials 204-208 (ottobre 2012): 3740–43. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3740.

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Abstract (sommario):

Mix design of the steel fiber reinforced concrete was analyzed based on the engineering conditions. It was indicated by comparing with the strength values of steel fiber reinforced concrete (CF40) and ordinary concrete (C40) that the tensile strength of the steel fiber reinforced concrete increased about 70%, the compressive strength increased about 10%, the initial cracking strength increased about 150%.The reasonable construction technologies were used in mixing, transportation, pouring, vibrating and curing of the steel fiber reinforced concrete in order to ensure quality of the construction.

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42

Luévanos Rojas, Arnulfo. "Numerical experimentation for the optimal design of reinforced rectangular concrete beams for singly reinforced sections". DYNA 83, n. 196 (20 aprile 2016): 134–42. http://dx.doi.org/10.15446/dyna.v83n196.48031.

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Abstract (sommario):

<p>This paper presents a model for the optimal design of reinforced rectangular concrete beams for singly reinforced sections. It develops an analytical approach to the problem, based on a criterion of minimum cost and minimum weight design with a reduced number of design variables. Representative examples are presented to illustrate the applicability of the formulation in accordance with building code requirements for structural concrete (ACI 318S-13), including the comments on the standards. A comparison is made between the optimal design solution and current design practice for reinforced rectangular concrete beams. The optimal solution for the design of reinforced rectangular concrete beams shows clearly that significant savings can be made in the costs of the construction materials used – i.e. reinforcement steel and concrete. In addition, the problem formulation can be applied using a nonlinear mathematical programming format.</p>

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43

Ovchinnikova, A. E., e A. S. Belkin. "Designing reinforced concrete structures in the ARM Model Studio CS". Upravlenie kachestvom (Quality management), n. 1 (1 gennaio 2023): 55–59. http://dx.doi.org/10.33920/pro-01-2301-09.

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Abstract (sommario):

The construction of buildings and structures made of reinforced concrete structures, both prefabricated and monolithic, has become widespread in modern construction. Accordingly, there are more and more requirements for the design of this type of objects. To simplify the work on projects, there are many programs for the construction of objects for various purposes and obtaining project documentation. One of the solutions in the field of design of the architectural and construction part (AR, AS, KJ, KM brands) is the Model Studio CS Construction Solutions program, which is part of the product line developed by the company “SiSoft Development” (CSoft Development). The article discusses the functionality of this program in terms of the construction of reinforced concrete structures.

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44

Fang, Rui, e Jiang Chen. "Effects of Design and Construction Factors on Continuously Reinforced Concrete Pavement Performance". Applied Mechanics and Materials 97-98 (settembre 2011): 138–45. http://dx.doi.org/10.4028/www.scientific.net/amm.97-98.138.

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Abstract (sommario):

In order to study the effects on the performance of continuously reinforced concrete pavement (CRCP) of some factors, eleven CRCP test sections were designed and constructed in Yanwei Expressway in China. The factors considered included concrete material, base configuration, epoxy coated of steel, transverse steel orientation, the depth of longitudinal reinforcement and the active cracks spacing. Concrete properties tests, early age cracking monitor and falling weight deflectometer tests were all carried out in these test sections. Furthermore, the field investigations to several other CRC pavements having been open for years in China were carried out also and cluster cracking and punchout distress were considered as the performance criteria of CRCP. Finally, the effects on CRCP performance of some factors were discussed. Results show that, the CRCP performance when the separating layer between the concrete slab and cement treated base is asphalt concrete is better than that when the separating layer is paraffin, and the thicker the asphalt mixture separating layer the better the CRCP performance; the modification of transverse steel skew angle can improve the CRCP performance; the concrete material, transverse steel skew and base have more effects on cluster cracking than the separating layer between concrete slab and base does; and the active cracks at the spacing of 1 to 5 m can prevent the occurrence of natural cracks between them.

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45

Chyzhov, Sergey, Yekaterina Shestakova, Elbek Yakhshiyev e Anatoliy Antonyuk. "Design principles of prestressed concrete span coponents in the process of despersed reinforcement". Proceedings of Petersburg Transport University, n. 2 (20 giugno 2017): 343–53. http://dx.doi.org/10.20295/1815-588x-2017-2-343-353.

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Abstract (sommario):

Objective: To determine the calculating justification methods of fibre-reinforced spans and scientific evidence of the structural method of dispersed reinforced concrete constructions in drily-hot climate for high-speed mainline railroads, to reveal advantages connected with fibre application in the process of construction, to determine the ways of total costs reduction while providing qualitative reliability characteristics of spans under construction. Methods: Comparative analysis, mathematical modeling. Results: Calculating principles of fibre-reinforced elements of spans were specified. The study was aimed at application solving, with regard to climate in Uzbekistan, and determined the parameters of Lр = 66 m fibre-reinforced concrete span, specified by the objective of scientific study concerning the bridgework for high-speed mainline railroad. Practical importance: Methodological foundation for fibre-reinforced concrete spans calculation was developed.

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46

Qian, Kun, Miao Wang, Guang Hui Jia e Yuan Xia. "Research on Optimization Design of EPS Module Reinforced Concrete Frame Structure". Advanced Materials Research 997 (agosto 2014): 405–8. http://dx.doi.org/10.4028/www.scientific.net/amr.997.405.

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Abstract (sommario):

Advantages of EPS module Reinforced concrete frame structure are enormous. For example, High precision, low cost, fast construction speed, low energy consumption. It has a wide application prospect in town building and post disaster reconstruction, cold region housing industrialization and other fields. It must have considerable economic benefit, if we can optimize the design reasonable on EPS module Reinforced concrete frame structure. As the design variables, constraint conditions, calculation and other reasons. In fact we are not on the EPS module Reinforced concrete frame structure to optimize the design of effective. This paper analyzed the EPS module of reinforced concrete frame structure and engineering optimization design theory development trend, research on EPS module of reinforced concrete frame structure optimization design problem and discusses the EPS module structure of reinforced concrete frame structure optimization design of the feasibility of using genetic algorithm.

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47

Yagi, S., T. Fujii, H. Tabuchi e T. Senda. "Design and Construction of a 41-Story Reinforced Concrete Tube Structure". Concrete Journal 29, n. 8 (1991): 35–47. http://dx.doi.org/10.3151/coj1975.29.8_35.

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48

Ma, Ming Lei, Gui Ling Wang, Dong Mei Miao e Bao Yu Lian. "Design and Construction of the Cofferdam Pile with GFRP Reinforced Concrete". Advanced Materials Research 671-674 (marzo 2013): 437–40. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.437.

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Abstract (sommario):

FRP (Fiber reinforced polymer) is a two-way designed material from both macro and micro design. Former design was carried out according to the structural design, and the micro design is the material design on fiber volume ratio and the resin types. FRP is eminent in civil engineering because of its high strength to weight ratio, durability prolongation, high stiffness to weight ratio and its fatigue resistance behaviors. Right now, lots of applications were found in offshore engineering, hydraulic engineering and railway engineering. This article focused on both design and construction of the FRP reinforcement with concrete, and a case study was provided from the Nanjing city by CCEED (China Construction Eighth Engineering Division).

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49

Stewart, M. G. "Structural reliability and error control in reinforced concrete design and construction". Structural Safety 12, n. 4 (novembre 1993): 277–92. http://dx.doi.org/10.1016/0167-4730(93)90057-8.

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50

Ramadan, Safwat H., e M. Hesham El Naggar. "Design guidelines for reinforced concrete three-sided culverts". Tunnelling and Underground Space Technology 119 (gennaio 2022): 104259. http://dx.doi.org/10.1016/j.tust.2021.104259.

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