Bond Of Reinforcemen Under Controlled Confinement
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Bond Of Reinforcemen Under Controlled Confinement
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Author :
language : en
Publisher:
Release Date : 1991
Bond Of Reinforcemen Under Controlled Confinement written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Twelve specimens were tested to determine the local bond stress-slip characteristics of a No. 6 rebar embedded in a 3-inch diameter concrete cylinder. Radial confining stress around the concrete specimen and radial deformation were assumed to be fundamental variables, together with bond stress and slip, needed to properly describe the interface behavior. Configuration independent bond stress-slip, relationships for a short five-lug embedded length were obtained for various degrees of confining pressure. Maximum bond stresses could be increased almost threefold by increasing the confining stress from 500 to 4500 psi at the bar level. Two types of No. 6 bars with different deformations were investigated. In many reinforced concrete structures, the mode of failure is tensile cracking of the concrete. Where it is important to predict failure or severe damage, proper representation of bond is crucial. Principal gain from inclusion of actual bond-slip properties in the interface between steel rebar and concrete is a realistic prediction of cracking. The spacing, width, and extent of cracks in reinforced concrete are dependent on the assumed bond-slip characteristics. Critical Navy reinforced concrete structures, such as missile test cells and graving drydocks, are designed to withstand large deformations under severe blast and strong-motion earthquake loads. The development of design criteria for these structures requires evaluation of their response where severe deterioration of steel concrete interfaces takes place.
Bond Of Reinforcement In Concrete
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Author : fib Fédération internationale du béton
language : en
Publisher: fib Fédération internationale du béton
Release Date : 2000-01-01
Bond Of Reinforcement In Concrete written by fib Fédération internationale du béton and has been published by fib Fédération internationale du béton this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-01 with Technology & Engineering categories.
"In 1993, the CEB Commission 2 Material and Behavior Modelling established the Task Group 2.5 Bond Models. It's terms of reference were ... to write a state-of-art report concerning bond of reinforcement in concrete and later recommend how the knowledge could be applied in practice (Model Code like text proposal)... {This work} covers the first part ... the state-of-art report."--Pref.
Development Of A Plasticity Bond Model For Reinforced Concrete
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Author : James V. Cox
language : en
Publisher:
Release Date : 1994
Development Of A Plasticity Bond Model For Reinforced Concrete written by James V. Cox and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Reinforced concrete categories.
Development Of A Plasticity Bond Model For Reinforced Concrete
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Author : James Vernon Cox
language : en
Publisher:
Release Date : 1994
Development Of A Plasticity Bond Model For Reinforced Concrete written by James Vernon Cox and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Mechanics Of Geomaterial Interfaces
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Author : A.P.S. Selvadurai
language : en
Publisher: Elsevier
Release Date : 1995-01-30
Mechanics Of Geomaterial Interfaces written by A.P.S. Selvadurai and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-01-30 with Science categories.
The subject of geomaterial interfaces recognizes the important influences of the interface behaviour on the performance of interfaces involving cementaceous materials such as concrete and steel, ice-structure interfaces, concrete-rock interfaces and interfaces encountered in soil reinforcement. During the past two decades, the subject of geomaterial interfaces has attracted the concerted attention of scientists and engineers both in geomechanics and applied mechanics. These efforts have been largely due to the observation that the conventional idealizations of the behaviour of interfaces between materials by frictionless contact, bonded contact, Coulomb friction or finite friction tend to omit many interesting and important influences of special relevance to geomaterials. The significant manner in which non-linear effects, dilatancy, contact degradation, hardening and softening, etc., can influence the behaviour of the interface is borne out by experimental evidence. As a result, in many instances, the response of the interface can be the governing criterion in the performance of a geomechanics problem. The primary objective of this volume is to provide a documentation of recent advances in the area of geomaterial interfaces. The volume consists of subject groupings which cover ice-structure, soil-structure and steel-concrete interfaces, mechanics of rock and concrete joints and interfaces in discrete systems.
Reinforced Concrete Design With Frp Composites
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Author : Hota V.S. GangaRao
language : en
Publisher: CRC Press
Release Date : 2006-11-20
Reinforced Concrete Design With Frp Composites written by Hota V.S. GangaRao and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-11-20 with Technology & Engineering categories.
Although the use of composites has increased in many industrial, commercial, medical, and defense applications, there is a lack of technical literature that examines composites in conjunction with concrete construction. Fulfilling the need for a comprehensive, explicit guide, Reinforced Concrete Design with FRP Composites presents specific informat
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Bond Behaviour Of Fibre Reinforced Polymer Frp Rebars In Concrete
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Author :
language : en
Publisher:
Release Date : 2007
Bond Behaviour Of Fibre Reinforced Polymer Frp Rebars In Concrete written by 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.
Recently, fibre reinforced polymer (FRP) rebars have been extensively used in construction instead of steel rebars due to their non-corrosive nature and high tensile strength. Bond between FRP rebars and concrete is a critical design parameter that controls the performance of reinforced concrete members at serviceability and ultimate limit states. In order to prevent a bond failure, an adequate anchorage length should be provided. The anchorage length is derived using a bond stress-slip () constitutive law. The objective of this study is to investigate the effect of different parameters such as the type of fibre, the rebar surface and the confinement provided by the transverse reinforcement on the bond behaviour of FRP rebars in concrete. Based on the analysis, a generalized bond stress-slip relationship will be developed and a new design equation for the required anchorage length of FRP rebar in concrete will be derived. A database was created on the bond stress-slip behaviour of FRP rebars in concrete from the available literature up to 2009. The data was statistically analyzed to investigate the effect of the different parameters on the bond performance of FRP rebars. It was observed that an increase in the confinement provided by the transverse reinforcement increased the bond strength of FRP rebars in concrete. This signifies that the presence of transverse reinforcement affects the bond behaviour of FRP rebars in concrete and hence, it should be taken into consideration while developing design equations for FRP rebars. Type of fibre and rebar surface does not affect the bond stress, but the latter affects the slip corresponding to the peak bond stress. Based on the results, a nonlinear regression analysis was performed to develop the bond stress-slip model for splitting mode of failure and a design equation for determining the development length of the FRP rebars in concrete was derived. The proposed development length equation can save about 10%-15% of the d.
Dynamic Behavior Of Concrete And Seismic Engineering
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Author : Jacky Mazars
language : en
Publisher: John Wiley & Sons
Release Date : 2013-05-10
Dynamic Behavior Of Concrete And Seismic Engineering written by Jacky Mazars and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-10 with Technology & Engineering categories.
While the static behavior of concrete has been the subject of numerous works, the same cannot be said for the dynamic behavior. This book sets out to remedy this situation: it begins by presenting the most frequently used experimental techniques in the study of the dynamic behavior of concrete, then continues by examining seismicity and seismic behavior, soil behavior, models of concrete structures subject to seismic activity, seismic calculation methods of structures, and paraseismic engineering.
Finite Element Implementation Of Bond Model Including Dilation For Reinforced Materials
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Author : Joseph D. Mello
language : en
Publisher:
Release Date : 1996
Finite Element Implementation Of Bond Model Including Dilation For Reinforced Materials written by Joseph D. Mello and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.