（1 西安建筑科技大学土木工程学院， 西安 710055； 2 深圳市建筑设计研究总院有限公司， 深圳 518031； 3 中广电广播电影电视设计研究院， 北京 100045）

［摘要］采用有限元分析软件ANSYS，研究节点刚度对自立式角钢塔结构抗震性能的影响。建立了考虑节点刚度的角钢塔模型，并对角钢塔进行了三维罕遇地震作用下的弹塑性时程分析，研究了地震作用下节点刚度对结构内力和位移的影响。结果表明节点刚度对结构的抗震性能影响显著。

［关键词］自立式角钢塔； 节点刚度； 弹塑性时程分析； 地震响应

中图分类号：TU311-3文献标识码：A文章编号：1002-848X(2018)13-0007-06

Analysis of the influence of joint stiffness on seismic performance of self-standing angle steel tower

Li Feng1, Liu Zhengyu1, Zhang Gong2, Xia Daqiao3

(1 School of Civil Engineering， Xi′an University of Architecture and Technology， Xi′an 710055, China; 2 Shenzhen General Institute of Architectural Design and Research Co., Ltd., Shenzhen 518031, China; 3 Radio, Film and Television Design and Research Institute, Beijing 100045, China)

Abstract:ANSYS was used to study the influence of joint stiffness on the seismic performance of the self-standing angle steel tower. An angle steel tower model considering the joint stiffness was established, and the elasto plastic time-history analysis was carried out on the angle steel tower under the three dimensional rare earthquake, and the influence of the joint stiffness on the internal force and displacement of the structure under the earthquake action was studied. The analysis results show that the joint stiffness has a significant impact on the seismic performance of the structure.

Keywords:self-standing angle steel tower; joint stiffness; elasto plastic time-history analysis; seismic response

作者简介：李峰，博士，副教授，硕士生导师，Email：lililan90@163.com。