Response Of Reinforced Concrete Structures Subjected To Severe Localized Static Or Dynamic Loads
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Response Of Reinforced Concrete Structures Subjected To Severe Localized Static Or Dynamic Loads
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Author : Shahriar Shahriar
language : en
Publisher:
Release Date : 1988
Response Of Reinforced Concrete Structures Subjected To Severe Localized Static Or Dynamic Loads written by Shahriar Shahriar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
The Response Of Reinforced Concrete Structures To Dynamic Loads
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Author : Walid Hammoud
language : en
Publisher:
Release Date : 1990
The Response Of Reinforced Concrete Structures To Dynamic Loads written by Walid Hammoud and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
The Response Of Reinforced Concrete Structures Under Impulsive Loading
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Author : William A. Millavec
language : en
Publisher:
Release Date : 1983
The Response Of Reinforced Concrete Structures Under Impulsive Loading written by William A. Millavec and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
A finite element method is presented to analyze the effects of airblast-induced ground shock on shallow-buried, flat-roofed, reinforced concrete structures. A finite element based on Timoshenko beam theory is adopted. Material properties are defined in terms of nonlinear stress-strain relations in each of several layers through the thickness of the element. Elastic, ideally plastic constitutive properties for plain concrete are cast in terms of shear-stress/normal-stress variables. Elastic, strain-hardening constitutive properties are assumed for steel. Dynamic explicit and implicit and static solution algorithms are available. This analysis method is applied to simulation of static beam-column tests reported by ACI Committee 318-77. It is then applied to simulation of structural response of experimentally tested shallow-buried box structures subjected to airblast loads in which shear, flexure and combined shear-flexure damage was observed. (Author).
Dynamic Response Of Reinforced Concrete Buildings
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Author : Hajime Umemura
language : en
Publisher: IABSE
Release Date : 1982
Dynamic Response Of Reinforced Concrete Buildings written by Hajime Umemura and has been published by IABSE this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Buildings categories.
Response Of Deep Two Way Reinforced And Unreinforced Concrete Slabs To Static And Dynamic Loading
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Author : James E. Beavers
language : en
Publisher:
Release Date : 1971
Response Of Deep Two Way Reinforced And Unreinforced Concrete Slabs To Static And Dynamic Loading written by James E. Beavers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Blast effect categories.
Behaviour And Modelling Of Reinforced Concrete Structures Subjected To Impact Loads
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Author : Selcuk Saatci
language : en
Publisher:
Release Date : 2007
Behaviour And Modelling Of Reinforced Concrete Structures Subjected To Impact Loads written by Selcuk Saatci and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The analysis and design of reinforced concrete (RC) structures against extreme loads, such as earthquakes, blasts, and impacts, has been an objective of many researchers and designers. As a result of recently elevated terror threat levels in the world, demand for the impact resistant design of buildings has increased. Numerous studies have been conducted to-date toward understanding and developing methodologies predicting the behaviour of RC structures under impact loads. However, the lack of a complete understanding of shear behaviour under high dynamic conditions hindered the efforts for accurate prediction of impact behaviour, since severe shear mechanisms may dominate the behaviour of RC structures when subjected to impact loads. This current study aimed to apply one of the more successful methods of static reinforced concrete shear analysis, the Modified Compression Field Theory (MCFT), to the analysis of dynamic loads, and thus, develop an efficient and reliable tool for impact analysis of RC structures. A two-dimensional nonlinear finite element analysis program for reinforced concrete, VecTor2, developed previously at the University of Toronto for static loads, was modified to include the consideration of dynamic loads, including impacts. VecTor2 uses the MCFT for its computational methodology, along with a wide array of material and behavioural models for reinforced concrete. To verify the performance of VecTor2 and its computational methodology under impact loads, an experimental program was also undertaken to provide data for corroboration. Eight reinforced concrete beam specimens, four pairs, were tested under free falling drop-weights, impacting the specimens at the mid-span. All specimens had identical longitudinal reinforcement, but varying shear reinforcement ratio, intended to investigate the effects of shear capacity on the impact behaviour. A total of 20 tests were conducted, including multiple tests on each specimen. The test results showed that the shear characteristics of the specimens played an important role in their overall behaviour. All specimens, regardless of their shear capacity, developed severe diagonal shear cracks, forming a shear-plug under the impact point. The VecTor2 analyses of the test specimens were satisfactory in predicting damage levels, and maximum and residual displacements. The methodology employed by VecTor2, based on the MCFT, proved to be successful in predicting the shear-dominant behaviour of the specimens under impact.
Understanding The Tensile Properties Of Concrete
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Author : Jaap Weerheijm
language : en
Publisher: Elsevier
Release Date : 2013-07-31
Understanding The Tensile Properties Of Concrete written by Jaap Weerheijm and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-31 with Technology & Engineering categories.
The response of concrete under tensile loading is crucial for most applications because concrete is much weaker in tension than in compression. Understanding the response mechanisms of concrete under tensile conditions is therefore key to understanding and using concrete in structural applications. Understanding the tensile properties of concrete summarises key recent research in this important subject. After an introduction to concrete, the book is divided into two parts: part one on static response and part two on dynamic response. Part one starts with a summary chapter on the most important parameters that affect the tensile response of concrete. Chapters show how multi scale modelling is used to relate concrete composition to tensile properties. Part two focuses on dynamic response and starts with an introduction to the different regimes of dynamic loading, ranging from the low frequency loading by wind or earthquakes up to the extreme dynamic conditions due to explosions and ballistic impacts. Following chapters review dynamic testing techniques and devices that deal with the various regimes of dynamic loading. Later chapters highlight the dynamic behaviour of concrete from different viewpoints, and the book ends with a chapter on practical examples of how detailed knowledge on tensile properties is used by engineers in structural applications. Drawing on the work of some of the leading experts in the field, Understanding the tensile properties of concrete is a valuable reference for civil and structural engineers as well as those researching this important material. Summarises key recent research in the areas of understanding the response mechanisms of concrete under tensile conditions Provides a summary of the most important parameters that affect the tensile response of concrete and shows how multi scale modeling is used to relate concrete composition to tensile properties Highlights the dynamic behaviour of concrete from different viewpoints and provides practical examples of how detailed knowledge on tensile properties is used by engineers in structural applications
Dynamic Response Of Concrete And Concrete Structures
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Author : Lawrence E. Malvern
language : en
Publisher:
Release Date : 1986
Dynamic Response Of Concrete And Concrete Structures written by Lawrence E. Malvern and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
This report describes a three-year research program whose objectives were to (1) Develop a loading function for close proximity explosions, (2) Determine dynamic strength properties for selected types of concrete, (3) Incorporate the strength properties so determined into a localized failure criterion for reinforced concrete, (4) Use a structural analysis elastic/plastic finite element computer program to determine localized response for a concrete/steel finite element mesh, and (5) Combine all of these into a simple structural analysis program to determine the response of underground structures to localized impulsive loads. A computational method was developed for calculating the stress transmitted to a buried wall by the pressure wave from a buried conventional explosive of cylindrical shape. Studies were performed on the response of a reinforced concrete structure to such a pressure-wave loading, using several different computer codes and incorporating some of the preliminary dynamic concrete material property data. The codes have not proved to be effective in predicting the type of response observed in experiments. A new Kolsky apparatus (split Hopkinson's pressure bar system) capable of testing concrete specimens up to 75 mm in diameter was built. The system and procedures are described. References are given to published results, including tests on four kinds of high-strength concrete and on mortar, showing dynamic unconfined compressive strengths up to twice the static values. Additional results on high strength plain concrete and on SIFCON (slurry infiltrated fiber concrete) are reported.
Concrete Structures Subjected To Impact And Blast Loadings And Their Combinations
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Author : Chunwei Zhang
language : en
Publisher: CRC Press
Release Date : 2022-05-08
Concrete Structures Subjected To Impact And Blast Loadings And Their Combinations written by Chunwei Zhang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-08 with Technology & Engineering categories.
Although much research focuses on investigating the responses of reinforced concrete (RC) structures under sole impact or blast loads, the responses of RC structures under a combination of impact and blast loads currently represent a gap in our knowledge. The combined actions of impact and blast loadings may be applied to RC structures during accidental or intentional collision of vessels, vehicles, etc., carrying explosive materials. A comprehensive study on the vulnerability of various structural members is carried out using finite element (FE) simulations under combination of impact and blast loads with the variations of various loading- and structural-related parameters and key parameters. This book introduces various structural analysis approaches for concrete structures when subjected to extreme loads such as impact and blast loadings. The theory of the combinations of impact and blast loads is proposed that can provide primary insights to the specific readers to develop new ideas in impact and blast engineering, including combined actions of extreme loads arising from real-world intentional or accidental events. This book will be of value to students (undergraduate or postgraduate), engineers, and researchers in structural and civil engineering, and specifically, those who are studying and investigating the performances of concrete structures under extreme loads.
Reinforced Concrete Structures Subjected To Wind And Earthquake Forces
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Author :
language : en
Publisher:
Release Date : 1980
Reinforced Concrete Structures Subjected To Wind And Earthquake Forces written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Earthquake resistant design categories.