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Home > Publications > International Concrete Abstracts Portal
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.
Showing 1-5 of 19 Abstracts search results
Document:
SP205-03
Date:
January 1, 2002
Author(s):
F. Ragueneau and J. Mazars
Publication:
Symposium Papers
Volume:
205
Abstract:
This paper deals with the analysis of reinforced concrete structures subjected to seismic loading. The expressions of two constitutive relations based on damage mechanics are exposed. Physical behavior such as crack closure and frictional sliding are introduced at the local level and their influences towards structural computations (global damping) are exemplified by comparisons with experimental data.
DOI:
10.14359/11633
SP205-04
J. Oibolt and Y.-J. Li
This paper addresses a three-dimensional finite element analysis of compressive shear failure. Results are presented for the specific case of concrete column tested at the University of California, San Diego. The numerical analysis is carried out with the special purpose finite element code MASA (A FE code based on the microplane material model and smeared crack concept). The model of the reinforced concrete column is first loaded by a normal compressive force and is subsequently loaded by shear loads with monotonic and cyclic load histories. It is demonstrated that a three-dimensional, local continuum, finite element analysis based on the smeared crack concept is able to capture relatively complex diagonal shear failure mechanisms. Moreover, a parametric study is carried out which investigates the influence of the concrete fracture energy on the column response. Fracture energy was observed to significantly influence ductility, ultimate load capacity and resistance to the cyclic loading. Reasonably good agreement between the numerical and experimental results is shown.
10.14359/11634
SP205-01
F. J. Vecchio and D. Palermo
A critical look is taken at the state-of-the-art in nonlinear finite element analysis of reinforced concrete structures. In examining the results of recent prediction competitions, the accuracy of such analysis procedures is gauged. Reasons for caution when applying nonlinear analysis methods are then identified and discussed. Finally, the results of a test program involving shear critical beams are presented in support of the contention that the behaviour of reinforced concrete is still not well understood. The tests represent a good challenge for validating current procedures.
10.14359/11630
SP205
Editors: Kaspar William and Tada-aki Tanabe
SP-205 Nonlinear finite element analysis (NLFEA) of reinforced concrete is close to being a practical tool for everyday use by design engineers. The first in this collection of 18 papers takes a critical look at the accuracy of this analysis procedure, then identifies and discusses reasons for caution in applying nonlinear analysis methods. Subsequent papers cover topics that include: * Seismic behavior predictions of structures; * Three-dimensional cyclic analysis of compressive diagonal shear failure; * Finite element analysis of shear columns; and * Simulation strategies to predict seismic response of reinforced concrete structures. Designers and researchers who use NLFEA models and procedures for reinforced concrete must be experienced and cautious. The papers in this volume will enable the users to better understand modeling, analysis, and interpretation of results.
10.14359/14013
SP205-17
C. Meyer
When designing concrete structures, fatigue related problems are not among the first that come to mind. However, structures subjected to strong cyclic loads such as those associated with destructive earthquakes experience strength and stiffness degradation that are most aptly described as a low-cycle fatigue phenomenon and are related to the damage accumulated under such loading. This paper briefly discusses the various elements of a rational, i.e. mechanics-based design methodology. Results of an experimental test program are summarized, in which 4-inch cubes with or without fiber reinforcement are subjected to uni- and biaxial cyclic compression until failure. The review concludes with a brief review of the various aspects of material behavior that need to be modeled, if the response of reinforced concrete members is to be simulated numerically.
10.14359/11647
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