Paper Title:
Seismic Behavior and Bearing Capacity Calculation of the Three-Layer-Closed-Restraining Stirrups Coupling Beam with Small Span-to-Depth
  Abstract

Seismic behaviors of the nine coupling beam specimens that three-layer-closed-restraining stirrups arranged in the coupling beam section depth direction were investigated experimentally. Effects of span-to-depth, amount of stirrups and longitudinal bars of coupling beam on its failure mode are studied, as well as the hysteretic behavior, stiffness degradation, and deformation capacity. Coupling beams with span-to-depth ratio of 0.75-1.5 were observed to suffer shear failure or flexural-shear failure, no matter whether longitudinal reinforcements yield or not. The existing of three-layer-closed-restraining stirrups along the section depth of coupling beam effectively improved its deformation and energy dissipation capacity. According to the experimental results, the formulae for estimating shear strength of the coupling beams were suggested considering the effect of longitudinal reinforcements. Estimated shear strength of coupling beams agreed well with the experimental data.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
3755-3760
DOI
10.4028/www.scientific.net/AMR.243-249.3755
Citation
X. W. Liang, J. L. Che, M. K. Deng, "Seismic Behavior and Bearing Capacity Calculation of the Three-Layer-Closed-Restraining Stirrups Coupling Beam with Small Span-to-Depth", Advanced Materials Research, Vols. 243-249, pp. 3755-3760, 2011
Online since
May 2011
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Price
$32.00
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