Shear capacity calculation method of panel zone in reinforced concrete frame under bidirectional loading

被引：0
|
作者：
Li Z.-B. [1 ]
Cui Y.-W. [1 ,2 ]
Song K. [3 ]
Ma H. [1 ]
Tang Z.-Y. [1 ]
机构：
[1] Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing
[2] School of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan
[3] School of Architecture Engineering and Mechanics, Yanshan University, Qinhuangdao
来源：
Gongcheng Lixue/Engineering Mechanics | 2019年 / 36卷 / 01期
关键词：
Bidirectional loading; Multi-dimensional earthquake excitation; Panel zone; Shear strength; Strut and tie model;
D O I：
10.6052/j.issn.1000-4750.2017.11.0851
中图分类号：
学科分类号：
摘要：
According to the provisions of the Chinese Code for Seismic Design of Buildings (GB 50011-2010), the anti-seismic capability of a frame structure in two horizontal directions are designed respectively. However, earthquake action is multi-dimensional and random, which will make a panel zone in a frame structure be loaded by bidirectional actions at the same time. Thusly, its anti-seismic capability may be lower than the designed capability based on a unidirectional earthquake action. So far, the detailed calculation methods of shear capability for a panel zone in a reinforced concrete (RC) frame subjected to bidirectional loading have not been reported. In this work, the shear mechanism of a panel zone in a RC frame under bidirectional loading was analyzed. It demonstrated that a synthetic shear force is imposed on a panel zone, the oblique compression zone comes into being at the end of a panel zone, and the diagonal strut is formed in a panel zone, which is different from the shear mechanism under unidirectional loading. A shear capacity calculation model was established based on the strut and tie model, and the predicted values by this work are in a good agreement with the reported experimental results. © 2019, Engineering Mechanics Press. All right reserved.
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页码：175 / 182
页数：7
相关论文
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