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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.
Title: Effect of Joint Hoops on Seismic Behavior of Wide Beam- Column Joints
Author(s): Roy Y. C. Huang, J. S. Kuang, and Srinivas Mogili
Publication: Structural Journal
Appears on pages(s): 131-142
Keywords: joint hoop; shear strength; spandrel beam; wide beam-column joint
Abstract:The effect of joint hoops on the seismic behavior and shear strength of wide beam-column connections under earthquake-type loading is investigated. Three full-scale exterior reinforced concrete wide beam-column joints, with inadequate joint shear strength according to ACI 318-14 and ACI 352R-02, were designed, constructed, and tested under reversed cyclic loading. Amount and spacing of joint hoops are the primary parameter and ratios of the reinforcement provided to that required by ACI codes were 1.71, 0.54, and 0. Test results showed that the joint without any hoop exhibited similar shear strength compared with others because spandrel beam helped resist the joint shear in the form of torsion. It is therefore suggested that the requirement of joint hoops in current codes of practice may be relaxed to reduce the reinforcement congestion in joint core without significantly affecting the performance of joints.
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