（1 天津大学建筑设计研究院， 天津 300072；  2 天津大学建筑工程学院， 天津 300072；3 天津港（集团）有限公司， 天津 300461）

［摘要］为研究预制高强混凝土管柱-钢梁框架节点的抗震性能，对6个不同参数的预制高强混凝土管柱-钢梁框架节点试件进行了低周反复荷载试验。基于试验数据，采用有限元分析软件ABAQUS建立了预制高强混凝土管柱-钢梁框架节点的有限元模型，有限元模型模拟结果和试验结果吻合较好，表明该有限元模型参数可靠。在此基础上，利用该有限元模型进行变参数分析，分析了柱轴压比、预应力张拉控制应力、环板宽度对节点抗震性能的影响。分析结果表明：随着轴压比的增加，试件的承载能力显著增加，但试件的延性降低； 增大预应力筋张拉控制应力和环板宽度，试件承载能力均有一定提高且刚度变大。

［关键词］装配式建筑； 高强混凝土管柱； 梁柱节点； 抗震性能

中图分类号：TU398-2, TU317-1文献标识码：A文章编号：1002-848X(2020)22-0009-07

Analysis of seismic behavior of precast reinforced concrete tube column-steel beam frame joints

ZHANG Xizhi1,2, LI Qiannan2, GONG Xuejian2, ZHANG Jiawei2, WANG Long3

(1 Architectural Design & Research Institute of Tianjin University, Tianjin 300072, China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 3 Tianjin Port (Group) Co., Ltd., Tianjin 300461， China)

Abstract:To study the seismic behavior of precast reinforced concrete column-steel beam (RCS) frame joints, experiments of 6 precast reinforced concrete tube column-steel beam frame joints with different parameters under low cyclic reversed loading were conducted. Based on the experimental data, the finite element analysis software ABAQUS was used to establish the finite element model of the precast reinforced concrete tube column-steel beam frame joints. The simulation results of the finite element model and the test results were in good agreement, indicating that the finite element model parameters were reliable. On this basis, the finite element model was used for variable parameter analysis, and the influence of column axial compression ratio, prestressed tension control stress, and width of the loop plate on the seismic performance of the joint was analyzed. The results show that the bearing capacity of the specimens significantly increased with the increase of the axial compression ratio, but the ductility of the specimens decreased. The bearing capacity and stiffness of the specimens are improved by increasing the tension control stress of prestressed tendons and enlarging the width of the loop plate.

Keywords:prefabricated building; reinforced concrete tube column; beam-column joint; seismic performance

*国家自然科学基金资助项目(51578369)，天津市科技计划项目(19YDLYSN00120),天津港科技计划项目（2017-379）。

作者简介：张锡治，博士，研究员，博士生导师，Email: zhang_xz@tju.edu.cn； 通信作者：李倩楠，硕士，助理工程师，Email: 531563378@qq.com。