（1 包头市城市规划信息管理中心， 包头 014030； 2 内蒙古科技大学土木工程学院， 包头 014010）

［摘要］为了更好地了解顶底角钢和端板两种连接方式对PEC柱-钢梁节点抗震性能的影响，以角钢厚度、端板厚度和柱翼缘厚度作为分析参数，进行了6组PEC柱-钢梁节点的低周反复水平荷载试验，对比分析了两种连接方式节点的破坏模式、承载力、滞回性能、延性和耗能等抗震性能。试验结果表明：端板连接节点的承载力、滞回性能和延性均优于顶底角钢连接的；增大顶底角钢厚度可以显著提高节点的承载力，最大增幅为19-8%；顶底角钢和端板连接PEC柱-钢梁节点的滞回曲线都比较饱满，表现出良好的抗震性能。

［关键词］PEC柱； 顶底角钢连接； 端板连接； 抗震性能

中图分类号：TU973-3+1文献标识码：A文章编号：1002-848X(2019)06-0049-06

Comparative study on seismic behavior of top-bottom angle steel and end-plate connection joints of PEC column-steel beam

Fu Fang1， Zhao Gentian2, Liang Youteng2

(1 Baotou City Planning and Information Management Center, Baotou 014030, China; 2 School of Civil Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, China)

Abstract: In order to better understand the effect of top-bottom angle steel and end-plate connections on the seismic performance of PEC column-steel beam joints, the  angle steel thickness, end-plate thickness and column flange thickness were taken as analysis parameters to carry out low-cycle repeated horizontal load tests of six groups of PEC column-steel beam joints, and the failure modes, bearing capacity, hysteretic performance, ductility and consumption of the joints with the two connection modes were compared and analyzed. The test results show that the bearing capacity, hysteretic behavior and ductility of end-plate connections are better than those of top-bottom angle steel, increasing the thickness of top-bottom angle steel can significantly improve the bearing capacity of the joints, with the maximum increase of 19-8%,   the hysteretic curves of PEC column-steel beam joints with the action of top-bottom angle steel and end-plate connections are relatively full and show good seismic performance.

Keywords:PEC column; top-bottom angle steel connection; end-plate connection; seismic behavior

*国家自然科学基金（51268042）。

通讯作者：赵根田，博士，教授， Email：zhaogentian93110@sina.com。