地震下考虑桩-土-结构相互作用的输电塔-线体系响应分析  

Response analysis of transmission tower-line system considering pile-soil-structure interaction under earthquake loading

作　　者：田利[1] 李兴建[1] 易思银 潘海洋[1] TIAN Li;Li Xingjian;YI Siyin;PAN Haiyang(School of Civil Engineering,Shandong University,Jinan 250061,China)

机构地区：[1]山东大学土建与水利学院,山东济南250061

出　　处：《世界地震工程》2018年第3期1-11,共11页World Earthquake Engineering

基　　金：国家自然科学基金项目(51578325和51208285)

摘　　要：本文研究了考虑桩-土-结构相互作用的输电塔-线体系在地震作用下的响应。根据实际工程,采用ABAQUS有限元软件,建立了考虑桩-土-结构相互作用效应的输电塔-线体系有限元模型。选取不同场地类型下的12条天然地震波,研究了不同地震波激励下考虑桩-土-结构相互作用效应输电塔-线体系动力响应。通过与考虑刚性基础的输电塔-线体系动力响应对比,得到了输电塔的薄弱位置,并提出了基于刚性基础的输电塔抗震放大系数,可为输电塔抗震设计提供参考。In this paper, the seismic response of transmission tower-line system considering pile-soil-structure inter- action （SSI） under earthquake loading was studied. According to a practical project, a finite element model of a transmission tower-line system considering SSI was established by using ABAQUS. Twelve sets of ground motion da- ta of different site types were selected, and the dynamic response of the transmission tower-line system considering SSI under different ground motions was studied. Comparing with the dynamic response of the transmission tower considering the rigid foundation, the weak positions of the transmission tower considering SSI were obtained, and the seismic amplification factor of the transmission tower based on rigid foundation was proposed, which can provide a reference for the seismic design of the transmission tower structure.

关 键 词：输电塔-线体系 桩-土-结构相互作用 地震动 动力响应 抗震设计 

分 类 号：P315.9[天文地球—地震学]