Shear Strength of Exterior Beam-Column Joints with Limited Ductility Details

被引：8
作者：
Kim, Chul-Goo [1 ]
Park, Hong-Gun [2 ]
Eom, Tae-Sung [3 ]
机构：
[1] Ulsan Univ, Dept Architectural Engn, 93 Daehak Ro, Ulsan 44610, South Korea
[2] Seoul Natl Univ, Dept Architecture & Architectural Engn, 1 Gwanak Ro, Seoul 08826, South Korea
[3] Dankook Univ, Dept Architectural Engn, 152 Jukjeon Ro, Yongin 16890, Gyeonggi Do, South Korea
来源：
JOURNAL OF STRUCTURAL ENGINEERING | 2020年 / 146卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
Beam-column connection; Exterior connection; Exterior joint; Joint shear strength; Nonconforming joint; Conforming joint; Cyclic load test; Low-rise building; MODEL; PERFORMANCE; DESIGN;
D O I：
10.1061/(ASCE)ST.1943-541X.0002483
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The seismic performance of exterior beam-column joints in low-rise buildings with limited ductility details was investigated. Seven exterior beam-column connection specimens were prepared for cyclic loading tests, and the major test parameters were the column depth and joint shear reinforcement details. In the specimens, joint shear failure occurred before beam or column yielding. The shear strength of the exterior joints increased as the column depth (i.e., joint depth) and the area of shear reinforcements increased. Despite the nonseismic reinforcement details, U-shaped bars and 90 degrees-hooked hoops with a spacing of one-third of the column depth increased the joint shear strength. As a result, flexural beam yielding occurred in several specimens. The joint shear strengths were compared with the predictions by current design codes, and the effects of the test parameters were investigated. Based on the results, a shear strength equation for exterior joints was proposed that is applicable to nonseismic details. (C) 2019 American Society of Civil Engineers.
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页数：14
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