电网技术Issue(4)：1076-1081,6.DOI:10.13335/j.1000-3673.pst.2014.04.039
基于Weibull分布的电瓷型电气设备地震易损性分析
Weibull Distribution Based Seismic Vulnerability Analysis of Porcelain Power Equipment
刘振林 1代泽兵 1卢智成1
作者信息
- 1. 中国电力科学研究院，北京市 海淀区 100192
- 折叠
摘要
Abstract
Due to its high vulnerability the high-tension porcelain bushing is the weak component of porcelain power equipment during the earthquake. To analyze seismic vulnerability of porcelain power equipment, in terms of the strength mechanism of high strength porcelain material the Weibull distribution of material strength and the computing formula of size effect under the action of bending moment are determined. Combining with the random parameter of earthquake action obtained by response spectrum method, a seismic vulnerability analysis method for porcelain bushing fracture is established. Selecting a certain 500 kV lightning arrestor as example, its seismic vulnerability is performed, and the impacts of earthquake motion, site conditions and structural size of equipment on its vulnerability are researched. The analysis method applied in this research can be used to such works as porcelain bushing strength calculation, optimization of structural aseismatic design, risk profile of earthquake damage and so on to provide technical support for enhancing seismic resistant capability of power grid and reducing the earthquake damage loss.关键词
电瓷型电气设备/地震/高强瓷/Weibull 分布/尺寸效应/易损性Key words
porcelain power equipment/earthquake/high tension porcelain/Weibull distribution/size effect/vulnerability分类
信息技术与安全科学引用本文复制引用
刘振林,代泽兵,卢智成..基于Weibull分布的电瓷型电气设备地震易损性分析[J].电网技术,2014,(4):1076-1081,6.
