输电线路铁塔抗震性能分析

英文篇名：Anti-seismic Analysis of Transmission Line Tower
中文刊名：特种结构
英文刊名：Special Structures
作者：刘华峰 ; 王钢
英文作者：Liu Huafeng ; Wang Gang ; Sichuan Electric Power Design & Consulting Co.Ltd
中文关键词：酒杯塔 ; 干字塔 ; 抗震性能
英文关键词：Cup-type ; tower ; "干" type tower ; Anti-seismic performance
出版日期：2015-02-15
机构：四川电力设计咨询有限责任公司;
年：2015
期：01
出版单位：特种结构

摘要

针对四川某500kV输电线路工程中代表性的酒杯型直线塔及干字型转角塔,利用钢结构分析设计软件STAAD建立了梁桁混合模型,采用振型分解反应谱法进行不同地震水准、抗震设防烈度、场地类别下的动力特性和地震响应分析。对比研究了非抗震和抗震两种情况下杆件的设计控制内力,分析了地震作用对铁塔各杆件的影响程度,同时找出了杯型塔及干字塔的薄弱部位,并针对薄弱部位采取了加强措施。
Based on the background of typical cup-type tower and " 干 " type tower of 500 kV overhead transmission line in Sichuan,using steel design analysis software STAAD,the trussed beam models were established.Using the mode decomposition response spectrum method,the dynamic characters and seismic responses were analyzed under different seismic levers,different seismic precautionary intensities and different sites.The controlling force of the elements on tower was compared by considering two different conditions of seismic and non-seismic,influences of earthquake action on the part of the tower were analyzed to find out the weak parts of the cup-type tower and " 干 " type tower.In addition,some strengthening measures were taken in the light of its weak parts.

引文

[1]中华人民共和国电力工业部主编.电力设施抗震设计规范(GB50260—2013)[S].北京:中国计划出版社,2013
    [2]电力规划设计总院主编.架空输电线路杆塔结构设计技术规定(DIYr5154-2012)[S].北京:中国计划出版社,2013
    [3]中华人民共和国住房和城乡建设部主编.建筑抗震设计规范(GB50011-2010)[S],北京:中国建筑工业出版社,2010
    [4]秦庆芝,谢强,等.1000kV输电铁塔抗震设计及振动台实验研究[J].电力建设,2013,(12)
    [5]尹荣华,李东亮,等.高压输电塔震害及抗震研究[J].世界地震工程,2005,(03)
    [6]Long,L,W,Analysis of Seismic Effects on Transmission Structures,IEEE,Transactions on Power Apparatus and Systerms,Vol.PAS-93,No,1,1974
    [7]Li Hongnan,Response of Transmission Tower System To Horizontal and Rocking Earthquake Excitations,Earthquake Engineering and Engineering Vbration.Dec.1997,17(4)