风荷载对1000 kV变电架构的影响  

Influences of Wind Load on 1 000 kV Substation Frame

作　　者：林小兵[1] 巢琼[1] 

机构地区：[1]华东电力设计院,上海市200063

出　　处：《电力建设》2008年第1期6-8,共3页Electric Power Construction

摘　　要：在对1000kV变电架构进行3个方向风荷载受力分析时,发现45°风对结构的内力起控制作用,所以需考虑45°方向风对结构的影响。按照《建筑结构荷载规范》(GB50009—2001)计算风振系数,基本上能同时满足《架空送电线路杆塔结构设计技术规定》(DL/T5154—2002)的要求,同时又有一定的安全余度。风荷载在总内力中占的比例较高,所以计算时要选用迎风面较小的结构布置形式和杆件断面种类,同时在保证安全的情况下,尽量把节点做小。During three directional wind load analysis of the 1 000 kV substation frame, it is identified that the 45° wind has controlling effect on structural internal forces. Therefore, the influence of 45° winds to the structure must be considered. According to ＂Building Structural Load Code＂ {GBS0009--2001）, the calculated gust response factor （GRF） basically meets ＂Technical Requirements for Overhead Transmission Pole and Tower Structural Design＂ （DL/T 5154--2002） and has some safety margins. Because wind load has a high proportion in total internal forces, during computation, structural configurations with small windward areas should be selected and one should minimize node size without sacrificing safety.

关 键 词：1000KV变电站 架构 风荷载 

分 类 号：TM63[电气工程—电力系统及自动化]