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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 15 Abstracts search results
Document:
SP127
Date:
October 1, 1991
Author(s):
Editor: S.K. Ghosh
Publication:
Symposium Papers
Volume:
127
Abstract:
SP127 This new special publication covers areas of: - Description of earthquake ground motion - Performance of systems and components in past earthquakes - Experimentally observed inelastic behavior of systems and components - Modeling hysteretic response of concrete members - Inelastic analysis - Deformability of structural components - Seismic design - Seismic detailing This publication helps provide economical new buildings with an enhanced seismic safety.
DOI:
10.14359/14159
SP127-06
Christian Meyer
The analysis of the response of building structures to dynamic loads is a difficult task, especially if the response is nonlinear, as in the case of concrete buildings subjected to strong seismic ground shaking. This is one of the most difficult tasks facing the structural engineer. The methods available for linear elastic analysis are summarized briefly, together with comments on the development of proper mathematical models for such analysis. A discussion of the main techniques suitable for the inelastic analysis of concrete buildings follows, again accompanied by practical guidelines for mathematical modeling for such analyses. The last section provides a list of several computer programs for engineers contemplating inelastic analyses of concrete buildings.
10.14359/3014
SP127-07
Arnaldo T. Derecho and Arthur A. Huckelbridge
A brief discussion of soil-structure interaction, particularly in terms of its effects on structures subjected to earthquakes, is presented. Factors influencing the degree to which soil-structure interaction modifies the response of structures, when compared to the response of rigid-based structures, are listed. The distinction between inertial and kinematic components of soil-structure interaction is made and the generally beneficial effects of interaction on earthquake structural response is noted. Soil-structures interaction effects are most pronounced in rigid, massive structures founded on compliant soils. Brief mention is made of the uncertainties surrounding the determination of interaction effects on structural response, especially those associated with the effects of nonlinear soil behavior.
10.14359/3016
SP127-08
Finley A. Charney
Inelastic static and dynamic analysis of reinforced concrete structures is demonstrated with a specific example taken from the U.S.-Japan Cooperative Program on Earthquake Engineering. The analytical process is explained from a hierarchical perspective, starting with material constitutive relationships, progressing to cross-sectional and element modeling, and culminating with the assembly of the complete system. The computed static and dynamic inelastic response of the mathematical model is than compared to the behavior observed during shaking table tests of the 1/5-scale laboratory model. The paper concludes with a detailed discussion of the degree of correlation obtained, and suggestions for future coordinated analytical-experimental research.
10.14359/3018
SP127-09
Catherine Wolfgram French and Arturo E/ Schultz
In an effort to provide the structural design profession with an indication of the deformation capacity of reinforced concrete beams subjected to cyclic loading, results of 69 isolated reinforced concrete beam tests were assembled and interpreted. The influence of several parameters, including longitudinal reinforcement ratio, web reinforcement ratio, shear stress, shear span-to-depth ratio, axial load, floor slabs, loading rate, and loading history on deformation capacity were investigated. It was found that ductility factors in the range of two to nine reasonably may be expected from reinforced concrete beams. Of the parameters investigated, shear was identified as the single most important factor affecting deformation capacity. It was further determined that the effects of shear can be controlled most directly by limiting the demand placed on web reinforcement. To insure that beams exhibit ductility factors of at least five, it is recommended that the maximum shear force demand on web reinforcement be limited to 60 percent of its nominal capacity.
10.14359/3020
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The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
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