Behavior of a High-strength Concrete Subjected to Cyclic Overload
Author: Wei-Bong Hsiang
Publisher:
Published: 1986
Total Pages: 734
ISBN-13:
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Author: Wei-Bong Hsiang
Publisher:
Published: 1986
Total Pages: 734
ISBN-13:
DOWNLOAD EBOOKAuthor: Riyadh Jawad Aziz
Publisher:
Published: 1987
Total Pages: 580
ISBN-13:
DOWNLOAD EBOOKAuthor: Mahmoud E. Kamara
Publisher:
Published: 1988
Total Pages: 518
ISBN-13:
DOWNLOAD EBOOKAuthor: David W. Fowler
Publisher:
Published: 1986
Total Pages: 11
ISBN-13:
DOWNLOAD EBOOKResearch at The University of Texas has been conducted to determine the properties and behavior of plain, high-strength concrete subjected to biaxial-cyclic compression. Static and dynamic tests were performed on a total of 95 specimens which consisted of 5-in. square x 1/2-in. thick plates of concrete. Tests were performed in a biaxial test machine developed at The University of Texas. The primary variables studies were the maximum stress level, expressed as a percent of the uniaxial-static compressive strength, and the biaxial stress ration, expressed as the ratio of the vertical to horizontal stress. Other variables included the stress range and the effect of the moisture content in the material.
Author: Pierre Pimienta
Publisher: Springer
Published: 2018-09-11
Total Pages: 152
ISBN-13: 3319954326
DOWNLOAD EBOOKThis book presents the work done by the RILEM Technical Committee 227-HPB (Physical properties and behaviour of High-Performance Concrete at high temperature). It contains the latest research results on the behaviour of high-performance concretes at high temperature. The book presents the state of the art of experimental data on High-Performance concretes and it collects and synthesizes useful data about concrete behaviour at high temperatures. The book is divided into independent chapters dealing with degradation reactions in concrete exposed to high temperatures; mass transport properties; thermal properties; and mechanical properties. The results presented especially target a group of users composed by universities and testing laboratories, building material companies and industries, material scientists and experts, building and infrastructure authorities, designers and civil engineers.
Author: D. Berner
Publisher:
Published: 1985
Total Pages: 17
ISBN-13:
DOWNLOAD EBOOKThe mechanical behavior of a high-strength, lightweight concrete made with expanded-shale aggregate was determined in the temperature range from 23°C (73°F) to -196°C (-320°F). High-strength, lightweight concrete is of particular interest for use in offshore cryogenic containment structures in which the concrete may be subjected to low temperatures and high-intensity cyclic loading simulating 20-year stormwave action. Values of compressive strength, tensile strength, and elastic modulus were determined, with moisture content and cyclic loading serving as key parameters. An evaluation was also made of the behavior of embedded strain gages at cryogenic temperatures. The results indicate that the lightweight concrete performed favorably under the test conditions, with the mechanical properties generally increasing at low temperatures with greater gains for higher moisture contents. Cyclic loading induced relatively minor fatigue damage in the concrete and should not affect the structural performance of an offshore containment structure.
Author: Ali Salem Ngab
Publisher:
Published: 1980
Total Pages: 224
ISBN-13:
DOWNLOAD EBOOKAuthor: Jon Charles Herrin
Publisher:
Published: 1982
Total Pages: 164
ISBN-13:
DOWNLOAD EBOOKThe main purpose of the research project reported herein was to determine the stress-strain behavior, ultimate strength, and failure mechanism of high-strength concrete subjected to biaxial compression. Model concrete plate specimens, composed of nine aggregate discs embedded in a mortar matrix, were used. Three different strength and elastic properties were used in order to determine the effects of material properties on the behavior of high-strength concrete subjected to biaxial compression. The plate specimens were tested using four biaxial stress ratios: 0 (uniaxial), 02, 0.5, and 1.0. Deformations in both the major and minor principal directions were measured using Direct Current Differential Transducers. Stress-Strain characteristics, discontinuity, ultimate strength and failure modes in biaxial compression as a function of materials properties are discussed.
Author: Farhad Aslani
Publisher: Trans Tech Publications Ltd
Published: 2015-03-14
Total Pages: 284
ISBN-13: 3038267236
DOWNLOAD EBOOKExperimental programs in laboratories give real results to identify nonlinear behavior of reinforced concrete (RC) structures but they are limited to knowledge of particular cases under restricted structural dimensions, sizes, shapes, loading and boundary conditions but the computational simulation approach has no limit to its application. Constitutive models are developed to simulate the dynamic nonlinear response of concrete and steel reinforcement subjected to cyclic loading varying randomly in magnitude. The behavior of structural concrete under monotonic loading is affected by important material aspects including cracking, crushing, tension stiffening, compression softening and bond slip. Reversed cyclic loading introduces further complexities such as stiffness degradation in concrete and the Bauschinger effect in reinforcing steel. In this research the validity and reliability of some proposed constitutive models for concrete considering general loading i.e. cyclic, monotonic, partial, common point and transition loading are evaluated. Amongst many existing constitutive models, because of their simplicity and common usage in the finite element analysis of RC structures, only some common proposed models based on nonlinear elasticity-based approach are investigated. These models are verified against experimental data available in the literature and the results are discussed. In this study, also, a hysteretic stressstrain model is developed for unconfined concrete with the intention of providing efficient modeling for the structural behavior of concrete in seismic regions. The proposed model is based on the findings of previous experimental and analytical studies. The model for concrete subjected to monotonic and cyclic loading, comprises four components in compression and tension; an envelope curve (for monotonic and cyclic loading), an unloading curve, a reloading curve, and transition curve. Also presented are formulations for partial unloading and partial reloading curves. The proposed Constitutive model reliability is investigated by RC members non-linear finite element analysis (FEM) using by finite element software ABAQUS. Comparisons with test results showed that the proposed model provides a good fit to a wide range of experimentally established hysteresis loops.
Author: Mohammad Mahmoud Smadi
Publisher:
Published: 1983
Total Pages: 664
ISBN-13:
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