Seismic Detailings of Reinforced Concrete Coupling Beams for Shear Walls
Date Issued
2011
Date
2011
Author(s)
Wang, Ting-Wei
Abstract
Reinforced concrete buildings in seismic zones has been limited to low-rise or medium-rise buildings worldwide, because of a lack of structural safety against earthquake. A high-rise reinforced concrete building can be built with the aids of the structural walls which provide lateral resistance efficiently. Architectural considerations usually result in window and door openings in structural walls, which divided a single wall into more slender walls connected by short or deep beams, referred to as coupling beams.
This research forcuses on the seismic behavior of coupling beams. The exrimental program is divided into two parts. The fisrt part is to test specimens with l_n⁄h=3 and the other is to deal with l_n⁄h=1. The parameters invove mainly with the different detailing of coupling beams. All specimens are subjected to double curvature bending moment were tested quasi-syatic loading.
Test results shows that the performence of specimens using vertically distributed reinforcement are not improved, but the specimens with increased confinement can enhance their post-strength behavior. This research also proposed an analytical model to predict the shear strength of coupling beam.
Subjects
Shear wall system
Reinforced concrete coupling beams
double curvature
Vertical distribution
Shear strength
SDGs
Type
thesis
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