Axial-shear-flexure interaction (ASFI) approach for displacement-based analysis of reinforced concrete columns

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Proceedings title8th U.S. National Conference on Earthquake Engineering, Proceedings CD-ROM
Conference8th U.S. National Conference on Earthquake Engineering, April 18-22, 2006, San Francisco, USA
SubjectAxial-shear-flexure interaction;
AbstractAn approach is presented in this paper in order to evaluate seismic performance of reinforced concrete columns based on axial-shear-flexure interaction concept. The total average axial strain is determined as equal to the summation of average axial strains induced by flexural, axial and shear mechanisms. In the method, fiber model in one-dimensional stress field is applied for modeling the flexural behavior. Strength deterioration is applied on the concrete fibers due to reduction of shear capacity. An integration point, representing the average strain-stress relationship of the element from one end to the inflection point, simulates the shear behavior of a reinforced concrete column. Pushover analyses were carried out to evaluate the performance of shear, shear-flexural, and flexural dominated reinforced concrete column specimens applying the proposed method. The analytical results such as ultimate lateral forces and ultimate drift ratios as well as post-peak responses have shown consistent agreement with the test results.
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NPARC number21274172
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Record identifier418f72a7-b614-4edd-9c8e-2a18a81f0898
Record created2015-02-23
Record modified2016-05-09
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