Gotowe bibliografie tematyczne / IRREGULAR REINFORCED CONCRETE STRUCTURE

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Gotowa bibliografia na temat „IRREGULAR REINFORCED CONCRETE STRUCTURE”

Autor: Grafiati

Data publikacji: 11 września 2023

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Artykuły w czasopismach na temat "IRREGULAR REINFORCED CONCRETE STRUCTURE"

Zhang, Fang. "The Modal Analysis of a Multilayer Concave-Convex Irregular Reinforced Concrete Frame Structures before and after Seismic Isolation". Applied Mechanics and Materials 339 (lipiec 2013): 632–34. http://dx.doi.org/10.4028/www.scientific.net/amm.339.632.

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It used lead core type laminated rubber pad as a base isolation device. Using the ANSYS software, it analyzed the modality of a multilayer concave-convex irregular reinforced concrete frame structures before and after seismic isolation. Comparison of the cycle, frequency and modal participation mass coefficient of the multilayer concave-convex irregular reinforced concrete frame structure before and after isolation in Kobe wave. It concluded that the lead laminated rubber bearings for multilayer concave-convex irregular reinforced concrete frame structures have seismic isolation effect.

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Men, Jin Jie, Qi Zhou i Qing Xuan Shi. "Fragility Analysis Method for Vertically Irregular Reinforced Concrete Frame Structures". Key Engineering Materials 400-402 (październik 2008): 587–92. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.587.

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This paper concentrates on the fragility analysis method for vertically plan reinforced concrete frame structures. The weakness story inter-story drift ratio is selected as the fragility variable for vertically plan structures. Five states are established to distinguish the structural seismic performance levels, which are expressed with inter-story drift ratio. Then through the nonlinear dynamic analysis and linear regress, the exceeding probability function of seismic response is obtained and a new fragility analysis method is put forward for vertically irregular frame structures. Two kind of unit models, two kind of hysteretic models and forty earthquake records are chosen to established structure-earthquake system samples. Thus one hundred and twenty structure-earthquake system samples are obtained for irregular reinforced concrete frame, which take into account the uncertainty of member materials, structures systems, numerical simulation models and earthquake motions adequately. Then example is presented to demonstrate the applicability and utility of the proposed methodology. Seismic performances of a vertically irregular reinforced concrete frame structure are evaluated in detail. It is concluded that fragility curves are more abrupt in low input earthquake motion intensity and they are influenced much by the structural performance levels.

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B M, Gagan. "Progressive Collapse Analysis of Irregular Reinforced Concrete Framed Structure". International Journal for Research in Applied Science and Engineering Technology 7, nr 5 (31.05.2019): 2175–80. http://dx.doi.org/10.22214/ijraset.2019.5365.

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Datta, D., i A. L. Nanda Gopal. "Behaviour of Irregular Reinforced Concrete Frames under Seismic Loading". Proceedings of the 12th Structural Engineering Convention, SEC 2022: Themes 1-2 1, nr 1 (19.12.2022): 941–51. http://dx.doi.org/10.38208/acp.v1.605.

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The present world demands the multi storey buildings due to lack of space availability in the urban areas to accommodate the increased population with their proposed requirements. Multi-storey building’s behaviour during high seismic action depends mainly on Structural configuration. Structural configuration having any discontinuities in plan or in elevation are termed as building with irregularities. When these irregularities are present in the structure, buildings suffer much more damage during strong earthquake excitations which was recorded in the past. The Irregularities are defined as per IS:1893 (Part 1)-2016 code. This paper is concerned about the various types of plan, vertical and combined irregularities and their effect under seismic loading. The objective of the present study is doing linear static and dynamic analysis i.e., ESA and RSA on various irregular building frames and calculating their response using some seismic parameters like displacement response, storey drift, inter storey drift ratio and base shear for which the frames are designed using IS 456-2000 and special detailing for fulfilling the ductility requirement is done as per IS: 13920-2016. Comparison of the results of analysis in X and Y directions of irregular structures is done with regular structure. The scope of the present study also includes the maximum and minimum effect on the various types of irregular structures under seismic loading and to know if the presence of irregularities always amplifies the response or not.

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Yolanda, Ardian, Zulfikar Djauhari, Ridwan i Enno Yuniarto. "Progressive collapse of regular and irregular reinforced concrete moment frame". MATEC Web of Conferences 276 (2019): 01035. http://dx.doi.org/10.1051/matecconf/201927601035.

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A technique to evaluate the potential progressive collapse of reinforced concrete structure was conducted in this study. The analysis involved the removal of several columns on critical location of the building according to General Services Administration (GSA) 2013 provision. In each analysis, the demand-capacity ratios (DCRs) of structural elements were examined and compared to the defined acceptance criteria. To avoid structural building collapse progressively, DCR ratio of regular and irregular buildings should be less than 2 and 1.5, respectively. The result showed that the structure did not collapse with the removal single column only. Further to this finding, several columns need to be removed so that it collapsed progressively. In the case of regular structure, progressive collapse occurred after removing five columns on the side of the regular structure, with the maximum DCR of 4.66. In the case of irregular structure, progressive collapse occurred after removing four columns on the horizontal side in the middle of structure with the maximum DCR of 3.44.

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Hiwase, Prashant, Vipul V. Taywade i Sharda P. Siddh. "Comparative analysis of vertical irregularities on high rise structure considering various parameters". IOP Conference Series: Materials Science and Engineering 1197, nr 1 (1.11.2021): 012024. http://dx.doi.org/10.1088/1757-899x/1197/1/012024.

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Abstract Now, every day tall constructing structures constructed around the goal of residential and industrial cause etc. Layout of tall buildings both earthquake as well as wind loads got to be take into considered. An irregular structure, failure of structure starts at a point of its weakness and those weaknesses comesups withs separation of mass, stiffness and geometry of that models. The structures having this kinds of discontinuity are called Irregular structures. (H, J, & darshan, 2017) [2]. For example,Structures with the soft storey were the foremost remarkable fallen structures. Therefore, the impact of vertical alignment within the seismic structure of buildings is very significant. The changes in durability and size provide powerful features of those structures that are completely different from the standard structure. For this present evaluation ‘ETABS’ software package is employed. All Reinforced Concrete structural elements are follows as per ‘IS 456:2000 (Plane and Reinforce Concrete-Code of Practice, Bureau of Indian Standard)’. Seismic load follows with respect to IS 1893:2016 along with self-weight of modelles for analysis of the structure. Here 2 kinds of buildings of (G+15) were created one is regular structure and alternative one Mass irregular. To observe, Effect of lateral in both buildings using Seismic load and to check the results,most of maximum displacement for various models and various parameters.

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Sadat, Zakia, i Abdussamet Arslan. "Automatic Minimization of the Drift Performance of RC 3D Irregular Buildings Using Genetic Algorithm". Advances in Civil Engineering 2023 (27.04.2023): 1–12. http://dx.doi.org/10.1155/2023/8275138.

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This study introduces the application of genetic algorithms for the optimal design of the seismic torsional drift performance of three-dimensional reinforced concrete buildings. Attempts have been made to achieve an optimal automatic design of the torsional drift of the storeys of reinforced concrete buildings with plan irregularities to build torsional balanced structures. The storey torsional drift response generated by static and dynamic loads can be clearly expressed in terms of vertical structure elements’ sizing design variables. Two examples are provided to demonstrate the efficiency and practicability of the proposed optimum design approach. The performance of the structures was assessed as per the procedure prescribed in modern seismic code languages. Mathematical and finite element modelling were used to perform seismic analysis on buildings. MATLAB® programming was used as a solution to the sizing optimization problem. The results confirmed the proposed genetic algorithm’s ability to find efficient optimum solutions to three-dimensional reinforced concrete structures through the problem of size optimization.

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Trivedi, Abhay, Dr Gunjan Shrivastava i Kishor Patil. "Seismic Analysis of Irregular Diaphragm Reinforced Concrete Building with Fluid Viscous Dampers". International Journal for Research in Applied Science and Engineering Technology 11, nr 7 (31.07.2023): 1970–76. http://dx.doi.org/10.22214/ijraset.2023.55029.

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Abstract: Fluid viscous damper is the most commonly used tool for controlling structures’ responses. Fluid viscous dampers with different construction technologies are applied in order decrease the responses of structures to the seismic vibrations. During the recent years, controlling structure has turned into a scientific technology to protect structures against wind and earthquake loads. In the present study linear dynamic and non-linear static analysis was adopted to assess the seismic performance of an irregular diaphragm building. Building with and without fluid viscous damper have been taken.The outcomes of the study will be beneficial to assess the performance of existing building vulnerable to seismic loads after the installation of fluid viscous dampers.

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Das, Satrajit, i James M. Nau. "Seismic Design Aspects of Vertically Irregular Reinforced Concrete Buildings". Earthquake Spectra 19, nr 3 (sierpień 2003): 455–77. http://dx.doi.org/10.1193/1.1595650.

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Seismic building codes such as the Uniform Building Code (UBC) do not allow the equivalent lateral force (ELF) procedure to be used for structures with vertical irregularities. The purpose of this study is to investigate the definition of irregular structures for different vertical irregularities: stiffness, strength, mass, and that due to the presence of nonstructural masonry infills. An ensemble of 78 buildings with various interstory stiffness, strength, and mass ratios is considered for a detailed parametric study. The lateral force-resisting systems (LFRS) considered are special moment-resisting frames (SMRF). These LFRS are designed based on the forces obtained from the ELF procedure. The results from linear and nonlinear dynamic analyses of these engineered buildings exhibit that most structures considered in this study performed well when subjected to the design earthquake. Hence, the restrictions on the applicability of the equivalent lateral force procedure are unnecessarily conservative for certain types of vertical irregularities considered.

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Botis, Marius Florin, i Camelia Cerbu. "A Method for Reducing of the Overall Torsion for Reinforced Concrete Multi-Storey Irregular Structures". Applied Sciences 10, nr 16 (11.08.2020): 5555. http://dx.doi.org/10.3390/app10165555.

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The uneven distributions of mass and stiffness in the case of multi-storey concrete buildings lead to a torsion sensitivity of those civil structures under dynamical loadings like earthquakes or wind and gusts. In order to minimize the overall torsion, it is imperatively necessary to reduce the distance between the centre of mass (CM) and centre of stiffness (CS) in the design stage. In this context, the main purpose of this paper is to present a theoretical method of reducing torsion by minimizing the distance between CM and CS at the level of each floor of the structure. Principal stiffness axes are also changed in convenient directions so that the movement of the structure leads to a favourable plastic mechanism in the fundamental mode of vibration. To achieve the goal, the main objective is to change the dimensions and orientations of the pillars located on the perimeter of the structures. The described method was used to study: irregular shaped structures in plan; structures with stairs or with central concrete core; structures with elevation retractions. The overall torsion reducing was achieved with Matlab programs, and the verification of the results was carried out by using the software ETABS 2016.

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Rozprawy doktorskie na temat "IRREGULAR REINFORCED CONCRETE STRUCTURE"

Das, Satrajit. "Seismic Design of Vertically Irregular Reinforced Concrete Structures". NCSU, 2000. http://www.lib.ncsu.edu/theses/available/etd-20000820-165307.

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Seismic building codes, such as the Uniform Building Code (UBC) do not allow the equivalent lateral force (ELF) procedure to be used for structures with vertical irregularities. The UBC defines a structure to be irregular based on the ratio of magnitudes of either strength, stiffness, mass, setback or offset of one floor to that of an adjacent floor. The criteria defining the limits of irregularity are somewhat arbitrary, but are introduced in the code to provide unambiguous, enforceable provisions. The purpose of this study is to quantify the definition of irregular structures for four different vertical irregularities - stiffness, strength, mass and nonstructural masonry infills. A total of 87 building structures with interstory stiffness and strength ratios ranging from 0.09 to 1.89 and 0.27 to 1.07, respectively, and mass ratios of 1.0, 2.5, and 5.0 are considered for a detailed parametric study. The lateral force resisting systems (LFRS) considered are special moment resisting frames and shear walls. These LFRS's are designed based on the forces obtained from the equivalent lateral force procedure. An ELF) analysis. Finally, nonlinear dynamic analysis is performed in order to assess the seismic performance of these buildings. The results show that the restrictions on the applicability of the equivalent lateral force procedure are unnecessarily conservative for irregular structures. Most structures considered in this study, designed on the basis of the ELF approach, perform reasonably well. In some cases, however, there is an initiation of an undesirable collapse mechanism. It is recommended that capacity based criteria in the design phase be appropriately used in the vicinity of the irregularity in order to ensure desired performance and behavior.

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Mola, Elena. "Criteria for the seismic vulnerability reduction of existing irregular reinforced concrete structures". Grenoble INPG, 2007. http://www.theses.fr/2007INPG0019.

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Le travail de recherche décrit est une contribution au développement de outils pour l'évaluation de la vulnérabilité des structures existantes aux événements sismiques et pour la prise de décision quant à la conception de stratégies de renforcement, notamment en cas d'irrégularité. Premièrement, on a clarifié autant que possible les caractéristiques les plus importantes du comportement sismique des structures irrégulières existantes ; deuxièmement, basé sur la leçon apprise de l'analyse des données expérimentales, on a proposé des critères pour réduire la vulnérabilité sismique de cette classe de structures en concevant des interventions efficaces de réhabilitation. Le travail a été largement basé sur l'exploitation des données dérivant d'une campagne expérimentale étendue effectuée dans le cadre du projet de recherche européen 'SPEAR'. Plusieurs moyens ont été employés à cet effet, complétant l'approche expérimentale : realisation d'un modèle numérique aux éléments finis, application des procédures simplifiées d'évaluation sismique, utilisation de l'analyse modale non linéaire de Karhunen-Loeve
The research is a contribution to the development of tools and criteria for the seismic assessment and retrofitting of existing reinforced concrete structures, in particular plan-wise irregular ones. Ln fact, the 'capacity design' method, based on the rationale of the equal displacernent rule and the central role of ductility, and usually employed for the design of new structures, does not automatically extend to existing irregular structures. The work is thoroughly based on a large scale experimental activity carried out in the framework of the EC-funded project SPEAR (Seismic Performance Assessment and Rehabilitation) and consisting of a series of pseudodynamic tests on a full-size plan-wise irregular three storey frame structure, bath in the as-built and in two different retrofitted configurations. Based on the experimental data, the research attempted at first at clarifying the basic features of the seismic response of such structures ; following to that, the proposed criteria for the reduction of their seismic vulnerability and for the design of effective rehabilitation interventions were presented. To this end, the experimental approach was complemented by the numerical one, with the creation of a numerical model into a finite element structural analysis software and the application of the Karhunen-Loeve nonlinear modal analysis method

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Aldeka, Ayad Basheer. "Seismic response of acceleration-sensitive non-structural components mounted on irregular multi-storey reinforced concrete buildings". Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5858/.

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This research investigates the seismic responses of lightweight acceleration-sensitive non-structural components (NSCs) integrated on irregular multi-storey reinforced concrete (RC) structures designed on different ground types. Dynamic nonlinear finite element analyses of the primary-secondary systems were conducted to provide insight into the seismic response of the NSCs and to evaluate the accuracy of Eurocode 8 (EC8) predictions when the NSCs are attached to the flexible sides along the heights of the primary structures (P-structures). Various sets of natural and artificial earthquake records consisting of 70 accelerograms were utilised. The effects of the plan and vertical mass irregularities were investigated. The NSCs were modelled as vertical cantilevers fixed at their bases with masses on the free ends and varying lengths so as to match the frequencies of the P-structures. A full dynamic interaction is considered between the NSCs and P-structures. The results suggest that the recommendation of the EC8 underestimates the NSCs’ accelerations at the flexible sides of irregular RC P-structures when the NSCs’ periods match those of the P-structures. Consequently, a modification on the existing EC8 design equation is made for the calculation of the maximum acceleration amplification factors of the NSCs taking into account the effects of both the torsion and the maximum seismic capacity of the P-structure.

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Barja, Rosas Xiomara Mariela, i Cerron Aldahir Edgar Sotomayor. "Influencia de la distribución de TMDs en la respuesta sísmica de estructuras irregulares de concreto armado". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/651960.

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En este trabajo se analiza el control de la respuesta sísmica de edificaciones asimétricas, mediante la incorporación de Amortiguadores de Masa Sintonizada (TMD), evaluando distintas distribuciones de estos dispositivos en el último piso para obtener una alternativa de mejora en la respuesta de la estructura con el fin de controlar los efectos torsionales de los dos primeros modos de vibrar producto de las irregularidades en planta. Lo anterior se hace usando un modelo computacional de elementos finitos donde la principal variable es la masa participativa del modo torsional siendo esta la primera forma de vibrar y se obtuvo una reducción hasta de 40% de esa variable.
This paper analyzes the control of the seismic response of asymmetric buildings, through the incorporation of Tuned Mass Damper (TMD), evaluating different distributions of these devices on the top floor to obtain an alternative to improve the response of the structure in order to control the torsional effects of the first two mode of vibrating due to irregularities in the plant. The previous one is done using a finite element computational model where the main variable is the participatory mass of the torsional mode, this being the first way to vibrate and a reduction of up to 40% of that variable was obtained.
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Hertanto, Eric. "Seismic Assessment of Pre-1970s Reinforced Concrete Structure". Thesis, University of Canterbury. Civil Engineering, 2005. http://hdl.handle.net/10092/1120.

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Reinforced concrete structures designed in pre-1970s are vulnerable under earthquakes due to lack of seismic detailing to provide adequate ductility. Typical deficiencies of pre-1970s reinforced concrete structures are (a) use of plain bars as longitudinal reinforcement, (b) inadequate anchorage of beam longitudinal reinforcement in the column (particularly exterior column), (c) lack of joint transverse reinforcement if any, (d) lapped splices located just above joint, and (e) low concrete strength. Furthermore, the use of infill walls is a controversial issue because it can help to provide additional stiffness to the structure on the positive side and on the negative side it can increase the possibility of soft-storey mechanisms if it is distributed irregularly. Experimental research to investigate the possible seismic behaviour of pre-1970s reinforced concrete structures have been carried out in the past. However, there is still an absence of experimental tests on the 3-D response of existing beam-column joints under bi-directional cyclic loading, such as corner joints. As part of the research work herein presented, a series of experimental tests on beam-column subassemblies with typical detailing of pre-1970s buildings has been carried out to investigate the behaviour of existing reinforced concrete structures. Six two-third scale plane frame exterior beam-column joint subassemblies were constructed and tested under quasi-static cyclic loading in the Structural Laboratory of the University of Canterbury. The reinforcement detailing and beam dimension were varied to investigate their effect on the seismic behaviour. Four specimens were conventional deep beam-column joint, with two of them using deformed longitudinal bars and beam bars bent in to the joint and the two others using plain round longitudinal bars and beam bars with end hooks. The other two specimens were shallow beam-column joint, one with deformed longitudinal bars and beam bars bent in to the joint, the other with plain round longitudinal bars and beam bars with end hooks. All units had one transverse reinforcement in the joint. The results of the experimental tests indicated that conventional exterior beam-column joint with typical detailing of pre-1970s building would experience serious diagonal tension cracking in the joint panel under earthquake. The use of plain round bars with end hooks for beam longitudinal reinforcement results in more severe damage in the joint core when compared to the use of deformed bars for beam longitudinal reinforcement bent in to the joint, due to the combination of bar slips and concrete crushing. One interesting outcome is that the use of shallow beam in the exterior beam-column joint could avoid the joint cracking due to the beam size although the strength provided lower when compared with the use of deep beam with equal moment capacity. Therefore, taking into account the low strength and stiffness, shallow beam can be reintroduced as an alternative solution in design process. In addition, the presence of single transverse reinforcement in the joint core can provide additional confinement after the first crack occurred, thus delaying the strength degradation of the structure. Three two-third scale space frame corner beam-column joint subassemblies were also constructed to investigate the biaxial loading effect. Two specimens were deep-deep beam-corner column joint specimens and the other one was deep-shallow beam-corner column joint specimen. One deep-deep beam-corner column joint specimen was not using any transverse reinforcement in the joint core while the two other specimens were using one transverse reinforcement in the joint core. Plain round longitudinal bars were used for all units with hook anchorage for the beam bars. Results from the tests confirmed the evidences from earthquake damage observations with the exterior 3-D (corner) beam-column joint subjected to biaxial loading would have less strength and suffer higher damage in the joint area under earthquake. Furthermore, the joint shear relation in the two directions is calibrated from the results to provide better analysis. An analytical model was used to simulate the seismic behaviour of the joints with the help of Ruaumoko software. Alternative strength degradation curves corresponding to different reinforcement detailing of beam-column joint unit were proposed based on the test results.

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Starczewski, Jerzy Andrzej. "Felix Candela : the structure and form of reinforced concrete shells". Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/22954.

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Harry, Ofonime Akpan. "Behaviour of reinforced concrete frame structure against progressive collapse". Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/29623.

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A structure subjected to extreme load due to explosion or human error may lead to progressive collapse. One of the direct methods specified by design guidelines for assessing progressive collapse is the Alternate Load Path method which involves removal of a structural member and analysing the structure to assess its potential of bridging over the removed member without collapse. The use of this method in assessing progressive collapse therefore requires that the vertical load resistance function of the bridging beam assembly, which for a typical laterally restrained reinforced concrete (RC) beams include flexural, compressive arching action and catenary action, be accurately predicted. In this thesis, a comprehensive study on a reliable prediction of the resistance function for the bridging RC beam assemblies is conducted, with a particular focus on a) the arching effect, and b) the catenary effect considering strength degradations. A critical analysis of the effect of axial restraint, flexural reinforcement ratio and span-depth ratio on compressive arching action are evaluated in quantitative terms. A more detailed theoretical model for the prediction of load-displacement behaviour of RC beam assemblies within the compressive arching response regime is presented. The proposed model takes into account the compounding effect of bending and arching from both the deformation and force points of view. Comparisons with experimental results show good agreement. Following the compressive arching action, catenary action can develop at a much larger displacement regime, and this action could help address collapse. A complete resistance function should adequately account for the catenary action as well as the arching effect. To this end, a generic catenary model which takes into consideration the strength degradation due to local failure events (e.g. rupture of bottom rebar or fracture of a steel weld) and the eventual failure limit is proposed. The application of the model in predicting the resistance function in beam assemblies with strength degradations is discussed. The validity of the proposed model is checked against predictions from finite element model and experimental tests. The result indicate that strength degradation can be accurately captured by the model. Finally, the above developed model framework is employed in investigative studies to demonstrate the application of the resistance functions in a dynamic analysis procedure, as well as the significance of the compressive arching effect and the catenary action in the progressive collapse resistance in different designs. The importance of an accurate prediction of the arching effect and the limiting displacement for the catenary action is highlighted.

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De, Rose David. "The rehabilitation of a concrete structure using fibre reinforced plastics". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29388.pdf.

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Stančík, Adam. "Mateřská škola v Novém Jičíně". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227500.

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Single-storey C-shaped building of kindergarten in Nový Jičín with flat green roof.The building is situated on the flat land. The plot is accessible by local road. Kindergarted has irregular plan. The ends are connected by connecting tunnel, which is partly below ground level. Courtyard facade is a vertical garden - green facade.

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Zhao, Li. "SPATIAL RELIABILITY ANALYSIS FOR CORRODED REINFORCED CONCRETE STRUCTURES". University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1479123930240399.

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Książki na temat "IRREGULAR REINFORCED CONCRETE STRUCTURE"

Taly, Narendra. Design of reinforced masonry structure. New York: McGraw-Hill, 2001.

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Rose, David De. The rehabilitation of a concrete structure using fibre reinforced plastics. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1999.

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Akanshu, Sharma, i Bhabha Atomic Research Centre, red. Experimental and analytical investigation on behavior of scaled down reinforced concrete framed structure under monotonic pushover loads. Mumbai: Bhabha Atomic Research Centre, 2008.

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American Society of Civil Engineers., red. Standard practice for direct design of buried precast concrete box sections. Reston, VA: American Society of Civil Engineers, 2000.

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Kuzmanovic, Sasha. An investigation of the shear design of a reinforced concrete box structure. Ottawa: National Library of Canada, 1998.

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Chuang, Tsai-Fu. Numerical modelling of reinforced concrete structure under monotonic and earthquake-like dynamic loading. Birmingham: University of Birmingham, 2001.

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Farrar, C. R. Experimental assessment of damping in low aspect ratio, reinforced concrete shear wall structure. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1988.

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Construction Engineering Research Laboratories (U.S.), red. Investigation of the use of visoelastic damping devices to rehabilitate a lightly reinforced concrete slab-column structure. [Champaign, IL]: US Army Corps of Engineers, Construction Engineering Research Laboratories, 1998.

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American Society of Civil Engineers., red. Standard practice for direct design of precast concrete box sections for jacking in trenchless construction. Reston, Va: American Society of Civil Engineers, 2001.

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Części książek na temat "IRREGULAR REINFORCED CONCRETE STRUCTURE"

Athanatopoulou, Asimina M., Grigorios E. Manoukas i Amfilohios Throumoulopoulos. "Parametric Study of Inelastic Seismic Response of Reinforced Concrete Frame Buildings". W Seismic Behaviour and Design of Irregular and Complex Civil Structures II, 171–80. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-14246-3_15.

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Shendkar, Mangeshkumar R., Denise-Penelope N. Kontoni, Sasankasekhar Mandal i Pabitra Ranjan Maiti. "Investigation of Seismic Design Parameters in Irregular Reinforced Concrete Buildings with Masonry Infills". W Structural Integrity, 7–25. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04793-0_2.

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Köber, Dietlinde. "Seismic Design Particularities of a Five Story Reinforced Concrete Structure, Irregular in Plan and Elevation". W Seismic Behaviour and Design of Irregular and Complex Civil Structures III, 189–99. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33532-8_16.

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Ayala, Gustavo, i Marco Antonio Escamilla. "Modal Irregularity in Continuous Reinforced Concrete Bridges. Detection, Effect on the Simplified Seismic Performance Evaluation and Ways of Solution". W Seismic Behaviour and Design of Irregular and Complex Civil Structures, 103–18. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5377-8_8.

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Krystallis, Angelos, Asimina Athanatopoulou i Konstantinos Kostinakis. "Use of Fluid Dampers in Order to Improve the Seismic Performance of Reinforced Concrete Buildings with Asymmetric Plan-View". W Seismic Behaviour and Design of Irregular and Complex Civil Structures IV, 189–200. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-83221-6_16.

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Bedi, Ashwani, i Ramsey Dabby. "Understanding Reinforced Concrete". W Structure for Architects, 128–51. New York : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9781315122014-10.

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Mosley, W. H., J. H. Bungey i R. Hulse. "Analysis of the structure". W Reinforced Concrete Design, 23–52. London: Macmillan Education UK, 1999. http://dx.doi.org/10.1007/978-1-349-14911-7_3.

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Mosley, W. H., i J. H. Bungey. "Analysis of the Structure". W Reinforced Concrete Design, 24–52. London: Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-20929-3_3.

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Mosley, W. H., i J. H. Bungey. "Analysis of the Structure". W Reinforced Concrete Design, 24–52. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-18825-3_3.

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Mosley, W. H., i J. H. Bungey. "Analysis of the Structure". W Reinforced Concrete Design, 24–52. London: Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-13058-0_3.

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Streszczenia konferencji na temat "IRREGULAR REINFORCED CONCRETE STRUCTURE"

"Failure Analysis of RC Structures Using Irregular Lattice Models". W SP-237: Finite Element Analysis of Reinforced Concrete Structures. American Concrete Institute, 2006. http://dx.doi.org/10.14359/18258.

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Cancellara, Donato. "Base isolation systems for irregular in plan reinforced concrete structures". W INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2021. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0162343.

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Ahirwal, Akshay, Kirti Gupta i Vaibhav Singh. "Effect of irregular plan on seismic vulnerability of reinforced concrete buildings". W PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SUSTAINABLE MATERIALS AND STRUCTURES FOR CIVIL INFRASTRUCTURES (SMSCI2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5127136.

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Barakat, Samer, i Helal Alsahi. "Seismic Performance of Vertically Mass Irregular Reinforced Concrete Structures in the UAE". W Research, Development and Practice in Structural Engineering and Construction. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-08-7920-4_st-94-0295.

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Chen, Wei, i Guojing He. "Research for the mechanical behavior of simple-supported irregular reinforced concrete slab bridge". W International Conference on Performance-based and Life-cycle Structural Engineering. School of Civil Engineering, The University of Queensland, 2015. http://dx.doi.org/10.14264/uql.2016.630.

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XU, BIN, ZHIFANG SHU i SHIRLEY DYKE. "Embedded Interface Debonding Detection for an Irregular Complex Multi-chamber Steel Reinforced Concrete Column with PZT Impedance". W Structural Health Monitoring 2015. Destech Publications, 2015. http://dx.doi.org/10.12783/shm2015/42.

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Blasone, Valentina, Alberto Basaglia, Raffaele De Risi, Flavia De Luca i Enrico Spacone. "A SIMPLIFIED APPROACH FOR THE VULNERABILITY ASSESSMENT OF REGULAR AND IRREGULAR REINFORCED CONCRETE BIULDINGS AT THE LARGE SCALE". W 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research National Technical University of Athens, 2021. http://dx.doi.org/10.7712/120121.8836.19502.

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Philippe, Maxime, Bruno Borgarino, Panagiotis Kotronis i Guillaume Ducrozet. "An Integrated Approach for the Representation of Concrete Gravity Based Foundations for Offshore Wind Turbines". W ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10639.

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This paper describes a novel approach to efficiently simulate the structural dynamics of a concrete Gravity Based Foundation (GBF). In this time-domain analysis, the GBF is subjected to loads applied by the turbine, wave loads and the influence of the soil structure interaction is taken into account. Wind turbine loads are computed using the aeroelastic software FAST and expressed at the connection point between the turbine and the GBF Wave loads on the GBF are computed using a potential, nonlinear wave model. Nonlinear soil-structure interaction is modelled with the use of a macro-element specifically developed for shallow foundations. Finally, the structure itself is modelled using an Euler-Bernoulli multifiber beam, which allows representing the reinforced concrete sections. It is shown that the numerical model is able to efficiently simulate the behaviour of a GBF foundation under nonlinear irregular wave forces and loads transmitted by the turbine. It reproduces nonlinear phenomena such as a decrease in material stiffness due to damage and permanent strains but also the GBF displacements considering soil structure interaction.

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Aldeka, A., A. Chan i S. Dirar. "EFFECTS OF TORSION ON THE BEHAVIOUR OF NON-STRUCTURAL COMPONENTS MOUNTED ON IRREGULAR REINFORCED CONCRETE MULTI-STOREY BUILDINGS". W 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2014. http://dx.doi.org/10.7712/120113.4785.c1452.

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Hu, Linghui. "FRP Reinforced Masonry Structure and Concrete Structure". W 2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA). IEEE, 2021. http://dx.doi.org/10.1109/isttca53489.2021.9654721.

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Raporty organizacyjne na temat "IRREGULAR REINFORCED CONCRETE STRUCTURE"

Winkel, B. V. Concrete material characterization reinforced concrete tank structure Multi-Function Waste Tank Facility. Office of Scientific and Technical Information (OSTI), marzec 1995. http://dx.doi.org/10.2172/72878.

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Farrar, C., i J. Bennet. Experimental assessment of damping in low aspect ratio, reinforced concrete shear wall structure. Office of Scientific and Technical Information (OSTI), sierpień 1988. http://dx.doi.org/10.2172/6909952.

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Hayes, John R., i Jr. Investigation of the Use of Viscoelastic Damping Devices to Rehabilitate a Lightly Reinforced Concrete Slab- Column Structure. Fort Belvoir, VA: Defense Technical Information Center, wrzesień 1998. http://dx.doi.org/10.21236/ada360496.

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Roesler, Jeffery, Sachindra Dahal, Dan Zollinger i W. Jason Weiss. Summary Findings of Re-engineered Continuously Reinforced Concrete Pavement: Volume 1. Illinois Center for Transportation, maj 2021. http://dx.doi.org/10.36501/0197-9191/21-011.

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This research project conducted laboratory testing on the design and impact of internal curing on concrete paving mixtures with supplementary cementitious materials and evaluated field test sections for the performance of crack properties and CRCP structure under environmental and FWD loading. Three experimental CRCP sections on Illinois Route 390 near Itasca, IL and two continuously reinforced concrete beams at UIUC ATREL test facilities were constructed and monitored. Erodibility testing was performed on foundation materials to determine the likelihood of certain combinations of materials as suitable base/subbase layers. A new post-tensioning system for CRCP was also evaluated for increased performance and cost-effectiveness. This report volume summarizes the three year research effort evaluating design, material, and construction features that have the potential for reducing the initial cost of CRCP without compromising its long-term performance.

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Ebeling, Robert, i Barry White. Load and resistance factors for earth retaining, reinforced concrete hydraulic structures based on a reliability index (β) derived from the Probability of Unsatisfactory Performance (PUP) : phase 2 study. Engineer Research and Development Center (U.S.), marzec 2021. http://dx.doi.org/10.21079/11681/39881.

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This technical report documents the second of a two-phase research and development (R&D) study in support of the development of a combined Load and Resistance Factor Design (LRFD) methodology that accommodates geotechnical as well as structural design limit states for design of the U.S. Army Corps of Engineers (USACE) reinforced concrete, hydraulic navigation structures. To this end, this R&D effort extends reliability procedures that have been developed for other non-USACE structural systems to encompass USACE hydraulic structures. Many of these reinforced concrete, hydraulic structures are founded on and/or retain earth or are buttressed by an earthen feature. Consequently, the design of many of these hydraulic structures involves significant soil structure interaction. Development of the required reliability and corresponding LRFD procedures has been lagging in the geotechnical topic area as compared to those for structural limit state considerations and have therefore been the focus of this second-phase R&D effort. Design of an example T-Wall hydraulic structure involves consideration of five geotechnical and structural limit states. New numerical procedures have been developed for precise multiple limit state reliability calculations and for complete LRFD analysis of this example T-Wall reinforced concrete, hydraulic structure.

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Bell, Matthew, Rob Ament, Damon Fick i Marcel Huijser. Improving Connectivity: Innovative Fiber-Reinforced Polymer Structures for Wildlife, Bicyclists, and/or Pedestrians. Nevada Department of Transportation, wrzesień 2022. http://dx.doi.org/10.15788/ndot2022.09.

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Engineers and ecologists continue to explore new methods and adapt existing techniques to improve highway mitigation measures that increase motorist safety and conserve wildlife species. Crossing structures, overpasses and underpasses, combined with fences, are some of the most highly effective mitigation measures employed around the world to reduce wildlife-vehicle collisions (WVCs) with large animals, increase motorist safety, and maintain habitat connectivity across transportation networks for many other types and sizes of wildlife. Published research on structural designs and materials for wildlife crossings is limited and suggests relatively little innovation has occurred. Wildlife crossing structures for large mammals are crucial for many highway mitigation strategies, so there is a need for new, resourceful, and innovative techniques to construct these structures. This report explored the promising application of fiber-reinforced polymers (FRPs) to a wildlife crossing using an overpass. The use of FRP composites has increased due to their high strength and light weight characteristics, long service life, and low maintenance costs. They are highly customizable in shape and geometry and the materials used (e.g., resins and fibers) in their manufacture. This project explored what is known about FRP bridge structures and what commercial materials are available in North America that can be adapted for use in a wildlife crossing using an overpass structure. A 12-mile section of US Highway 97 (US-97) in Siskiyou County, California was selected as the design location. Working with the California Department of Transportation (Caltrans) and California Department of Fish and Wildlife (CDFW), a site was selected for the FRP overpass design where it would help reduce WVCs and provide habitat connectivity. The benefits of a variety of FRP materials have been incorporated into the US-97 crossing design, including in the superstructure, concrete reinforcement, fencing, and light/sound barriers on the overpass. Working with Caltrans helped identify the challenges and limitations of using FRP materials for bridge construction in California. The design was used to evaluate the life cycle costs (LCCs) of using FRP materials for wildlife infrastructure compared to traditional materials (e.g., concrete, steel, and wood). The preliminary design of an FRP wildlife overpass at the US-97 site provides an example of a feasible, efficient, and constructible alternative to the use of conventional steel and concrete materials. The LCC analysis indicated the preliminary design using FRP materials could be more cost effective over a 100-year service life than ones using traditional materials.

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Breland, Benjamin, Janet Simms, William Doll, Jason Greenwood i Ronald Kaufman. Waterborne geophysical investigation to assess condition of grouted foundation : Old River Control Complex – Low Sill Structure, Concordia Parish, Louisiana. Engineer Research and Development Center (U.S.), maj 2022. http://dx.doi.org/10.21079/11681/44183.

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The Old River Low Sill Structure (ORLSS) at the Old River Control Complex (ORCC) in Concordia Parish, LA, is a steel pile-founded, gated reinforced-concrete structure that regulates the flow of water into the Atchafalaya River to prevent an avulsion between the Mississippi River and the Atchafalaya River. A scour hole that formed on the southeast wall of ORLSS during the Mississippi River flood of 1973 was remediated with riprap placement and varied mixtures of self-leveling, highly pumpable grout. Non-invasive waterborne geophysical surveys were used to evaluate the distribution and condition of the grout within the remediated scour area. Highly conductive areas were identified from the surveys that were interpreted to consist mostly of grout. Resistive responses, likely representing mostly riprap and/or sediment, were encountered near the remediated scour area periphery. A complex mixture of materials in the remediated scour area is interpreted by the more gradual transitions in the geophysical response. Survey measurements immediately beneath ORLSS were impeded by the abundance of steel along with the structure itself. The survey results and interpretation provide a better understanding of the subsurface properties of ORLSS.

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Ebeling, Robert, Barry White, John Hite, James Tallent, Locke Williams, Brad McCoy, Aaron Hill, Cameron Dell, Jake Bruhl i Kevin McMullen. Load and resistance factors from reliability analysis Probability of Unsatisfactory Performance (PUP) of flood mitigation, batter pile-founded T-Walls given a target reliability index (𝛽). Engineer Research and Development Center (U.S.), lipiec 2023. http://dx.doi.org/10.21079/11681/47245.

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This technical report documents the research and development (R&D) study in support of the development of a combined Load and Resistance Factor Design (LRFD) methodology that accommodates both geotechnical and structural design limit states for design of the US Army Corps of Engineers (USACE) batter pile-founded, reinforced concrete flood walls. Development of the required reliability and corresponding LRFD procedures has been progressing slowly in the geotechnical topic area as compared to those for structural limit state considerations, and therefore this has been the focus of this first-phase R&D effort. This R&D effort extends reliability procedures developed for other non-USACE structural systems, primarily bridges and buildings, for use in the design of batter pile-founded USACE flood walls. Because the foundation system includes batter piles under flood loading, the design procedure involves frame analysis with significant soil structure interaction. Three example batter pile-founded T-Wall flood structures on three different rivers have been examined considering 10 geotechnical and structural limit states. Numerical procedures have been extended to develop precise multiple limit state Reliability calculations and for complete LRFD analysis of the example batter pile-founded, T-Wall reinforced concrete, flood walls.

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Nema, Arpit, i Jose Restrep. Low Seismic Damage Columns for Accelerated Bridge Construction. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, grudzień 2020. http://dx.doi.org/10.55461/zisp3722.

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This report describes the design, construction, and shaking table response and computation simulation of a Low Seismic-Damage Bridge Bent built using Accelerated Bridge Construction methods. The proposed bent combines precast post-tensioned columns with precast foundation and bent cap to simplify off- and on-site construction burdens and minimize earthquake-induced damage and associated repair costs. Each column consists of reinforced concrete cast inside a cylindrical steel shell, which acts as the formwork, and the confining and shear reinforcement. The column steel shell is engineered to facilitate the formation of a rocking interface for concentrating the deformation demands in the columns, thereby reducing earthquake-induced damage. The precast foundation and bent cap have corrugated-metal-duct lined sockets, where the columns will be placed and grouted on-site to form the column–beam joints. Large inelastic deformation demands in the structure are concentrated at the column–beam interfaces, which are designed to accommodate these demands with minimal structural damage. Longitudinal post-tensioned high-strength steel threaded bars, designed to respond elastically, ensure re-centering behavior. Internal mild steel reinforcing bars, debonded from the concrete at the interfaces, provide energy dissipation and impact mitigation.

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Agudelo Urrego, Luz María, Chatuphat Savigamin, Devansh Gandhi, Ghadir Haikal i Antonio Bobet. Assessment of Pipe Fill Heights. Purdue University Press, 2023. http://dx.doi.org/10.5703/1288284317612.

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The design of buried pipes, in terms of the allowable minimum and maximum cover heights, requires the use of both geotechnical and structural design procedures. The geotechnical procedure focuses on estimating the load on the pipe and the compressibility of the foundation soil. The focus of the structural design is choosing the correct cross-section details of the pipe under consideration. The uncertainties of the input parameters and installation procedures are significant. Because of that, the Load Resistance Factor Design (LRFD) method is considered to be suitable for the design of buried pipes. Furthermore, the interaction between the pipe structure and surrounding soil is better captured by implementing soil-structure interaction in a finite element numerical solution technique. The minimum cover height is highly dependent on the anticipated traffic load, whereas the maximum cover height is controlled by the section properties of the pipe and the installation type. The project focuses on the determination of the maximum cover heights for lock-seam CSP, HDPE, PVC, polypropylene, spiral bound steel, aluminum alloy, steel pipe lock seam and riveted, steel pipe and aluminum arch lock seam and riveted, non-reinforced concrete, ribbed and smooth wall polyethylene, smooth wall PVC, vitrified clay, structural plate steel or aluminum alloy pipe, and structural plate pipe arch steel, or aluminum alloy pipes. The calculations are done with the software CANDE, a 2D plane strain FEM code that is well-accepted for designing and analyzing buried pipes, that employs the LRFD method. Plane strain and beam elements are used for the soil and pipe, respectively, while interface elements are placed at the contact between the pipe and the surrounding soil. The Duncan-Selig model is employed for the soil, while the pipe is assumed to be elastic. Results of the numerical simulations for the maximum fill for each type and size of pipe are included in the form of tables and figures.

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