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T型钢连接钢框架梁柱节点抗震性能试验研究

孙海粟1,2,3, 布欣1,2,3, 王新武2,3, 门亦昂4

1.洛阳理工学院 土木工程学院，河南 洛阳 471023；2.河南省装配式建筑结构工程技术研究中心，河南 洛阳 471023；3.河南省新型土木工程结构国际联合实验室，河南 洛阳 471023；4.河南理工大学 土木工程学院，河南 焦作 454000

摘要:为了研究T型钢连接件翼缘厚度变化对框架梁柱节点抗震性能的影响，以平面框架中柱节点为研究对象，设计了 2种不同厚度的T型钢连接件，进行柱端加载的拟静力试验，研究框梁柱节点的变形特点和破坏形态，分析T型钢连接件翼缘厚度对节点的破坏机理、极限承载力以及滞回性能和耗能特性的影响。试验结果表明，T型钢连接件翼缘的厚度增加后，试件的初始刚度、屈服强度、极限强度、屈服位移、极限位移、耗能能力均有所提高，但延性系数不变，T型件与柱之间的间隙有所减小。

关键词:钢结构;框架中柱;丁型钢;抗震性能;拟静力试验;柱端加载

doi:10.16186/j.cnki.1673-9787.2020.6.24

基金项目:国家自然科学基金资助项目（51678284）；河南省科技创新杰出人才项目（184200510016）

收稿日期:2020/02/06

修回日期:2020/03/15

出版日期:2020/11/15

Experimental study on seismic behavior of beam-column joints of T-stub connecting steel frames

WANG Yuehong,ZHOU Ning,ZHANG Jiuling,ZHU Zhuang

College of Mining Engineering, North China University of Science and Technology, Tangshan 063009 , Hebei, China

Abstract:In order to study the influence of the flange thickness of T-shaped steel connections on the seismic performance of the beam column joints in the frame，two kinds of T-shaped steel connections with different thickness were designed for the quasi-static tests of the column end loading. The deformation characteristics and failure patterns of the beam column joints in the frame were studied. The failure mechanism and poles of the flange thickness of T-shaped steel connections were analyzed. Limited bearing capacity and the influence of hysteretic performance and energy dissipation characteristics were analyzed. The test results showed that the initial stiffness，yield strength， ultimate strength，yield displacement，ultimate displacement and energy dissipation capacity of the test piece increased with the increase of the flange thickness of the T-shaped steel connection，but the ductility coefficient remained unchanged，and the gap between the T-shaped steel connection and the column decreased.

Key words:steel structure;spatial column;T-stub;seismic behavior;quasi-static test;column end loading

T型钢连接钢框架梁柱节点抗震性能试验研究_孙海粟.pdf