特高压工程电力跨越架力学分析  

Mechanics Analysis of Electric Crossing in UHV Engineering

作　　者：祁瑞忠 黄成云[2] 罗本壁[3] 周焕林[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009 [2]安徽省送变电工程公司,合肥230022 [3]国家电网公司交流建设分公司,北京100052

出　　处：《电力学报》2017年第1期70-75,共6页Journal of Electric Power

基　　金：国家电网公司科技项目资助(合同号:SGHEJY00TGJS1600057)

摘　　要：对电力跨越架进行了力学分析,研究了跨越架剪刀撑布置方式、高度和排数对其力学性能的影响。研究结果表明,在小横杆立面设置剪刀撑的跨越架较仅四周设置剪刀撑的跨越架最大位移和应力更小,稳定性更好,建议实际工程中采用小横杆立面设置剪刀撑的形式;随跨越架高度的增加,最大位移随着荷载增加而增大的趋势更快,稳定性快速衰减;增加跨越架的排数有利于降低跨越架应力与位移,增强其稳定性。The mechanics property of the electric crossing is analyzed.The influences of layout of scissor support,the height and row number of the crossing frame are investigated.Compared with the crossing frame with scissor support only on the outer surface,the structure with scissor brace on small cross-sectional elevation has smaller lateral displacement and higher stability.It is recommended that the scaffold should use scissor brace on the small cross-sectional elevation in practical engineering.As the height increases,the overall displacement intends to rapidly increase,and the stability evidently reduces.Moreover,the stability decreases sharply with the increase of the bearing load of the crossing frame.In addition,increasing the number of rows of the frame is helpful to reduce the stress and displacement of the structure and improve its stability.

关 键 词：特高压 电力跨越架 位移 应力 稳定性 

分 类 号：TM752[电气工程—电力系统及自动化]