Bond-Slip Relationship of Beam Flexural Bars in Interior Beam-Column Joints

被引:2
|
作者
Hwang, Hyeon-Jong [1 ]
Eom, Tae-Sung [2 ]
Park, Hong-Gun [3 ]
机构
[1] Hunan Univ, Coll Civil Engn, Changsha 410082, Hunan, Peoples R China
[2] Dankook Univ, Dept Architectural Engn, Gyeonggi Do, South Korea
[3] Seoul Natl Univ, Dept Architecture & Architectural Engn, Seoul 151, South Korea
基金
新加坡国家研究基金会;
关键词
beam-column interior joint; bond slip; cyclic loading; simplified bond strength model; DETERIORATION; STRENGTH; BEHAVIOR;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Under cyclic loading, the structural performance of reinforced concrete (RC) beam-column connections is significantly affected by the bond slip of beam flexural bars. In the present study, a bond-slip model was developed to evaluate the bond slip of beam flexural bars within beam-column joints using simplified bond strength and bar strain. To address the cyclic loading effect, the bond strength was determined from the existing test results of beam-column connections that showed complete bond failure. For verification, the predictions of the proposed model were compared with the existing test results of concrete block specimens and beam-column joint specimens. The results showed that the proposed model predicted the bond strength degradation and bond-slip relationships with reasonable precision. For performance-based design, a bond requirement was proposed as the function of the ductility demand of beam-column joints.
引用
收藏
页码:827 / 837
页数:11
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