采动区地表变形对输电塔线体系的影响规律研究  

STUDY ON THE INFLUENCE REGULARITIES OF GROUND SURFACE DEFORMATION ON TRANSMISSION TOWER-LINE SYSTEM IN MINING SUBSIDENCE AREA

作　　者：陈卫明 陈卫国 王鑫[3] 

机构地区：[1]苏州市天地民防建筑设计研究院有限公司,江苏苏州215006 [2]中国建筑工程第四工程局有限公司,广州510665 [3]安徽省水利部淮委水利科学研究院,安徽蚌埠233000

出　　处：《钢结构》2015年第8期38-42,共5页Steel Construction

摘　　要：利用ANSYS有限元分析软件建立输电塔线体系有限元模型,研究了采动区地表变形下输电塔线体系抗地表变形内力特性、输电塔线体系的极限抗变形能力和破坏机理以及塔线耦联作用对输电塔抵抗各种单一地表变形的影响,分析了输电塔线体系在各种地表变形组合下的薄弱杆件以及塔线耦联作用的贡献,得到输电塔线体系在不同单一地表变形下能够承受的地表变形值及其破坏形态。通过比较塔线体系中3个输电塔在单一地表变形下的内力变化,得到塔线体系耦联作用对输电塔抗地表变形的影响规律。A finite element model of transmission tower-line system was established by using ANSYS.The mechanical characteristics of deformation-resistance ground surface on transmission tower-line system,the ultimate deformation resisting capability and failure mechanism of transmission tower-line system,the influence of tower-line coupling effect on single ground surface deformation-resistance of transmission tower-line system were investigated.The weak member bars of transmission tower-line system under various ground surface deformation and the influence of tower-line copling effect were analyzed.The influence regularities of tower-line coupling effect on groud surface deformation resistance of transmission tower was obtained by comparing the internal force variation of three transmission towers in tower-line system under ground surface deformation.

关 键 词：采动区 输电塔线体系 变形 有限元 耦联作用 ANSYS 

分 类 号：TU347[建筑科学—结构工程] TM753[电气工程—电力系统及自动化]