两种横担活性粉末混凝土门型电杆设计分析

Analysis of Two Cross Arm of Reactive Powder Concrete Pole Design

采用SAP2000结构分析软件,设计了两种500k V部分预应力活性粉末混凝土门型电杆的横担,并将两种横担方案的门型电杆进行了设计对比。结果表明,三角桁架组合横担具有良好的受力性能、改善了主材的受力状态,使得门型电杆高度降低10m。通过结构计算分析可知,这种横担在运行状况下的安全可靠程度较高,可以在目前500k V送电线路中使用;在经济技术性能方面,这种方案的门型电杆综合造价大大降低了,同时加快了施工进度,提高了电杆在输电线路中的综合效益。

SAP2000 structural analysis software is used to designed tWO of 500kV partially prestressed reactive powder concrete pole cross arm; moreover, poles of the two cross arm program have been compared. The results show that the triangular truss cross arm has good mechanical properties, improving the main material of the stress state, the pole reduced height 10m, by the analysis of the structure shows, this cross arm has higher reliability under the operating conditions, which can be used in 500kV transmission line; from economic and technical performance, the pole cost of this program is greatly reduced, while speeding up the construction progress and improving the comprehensive benefits of the poles in the transmission line.