摘要
文中针对750kV高压电抗器的抗震问题,以某750kV高压电抗器为原型,采用有限元软件SAP2000基于弹塑性时程法,对隔震前后的750kV高压电抗器进行地震响应分析。分析结果表明,采用隔震技术后,在9度设防地震作用下,设备整体减震系数不大于49%;高压套管顶部放大系数最大值由3.96减小为0.99,加速度响应峰值不大于非隔震时的24%,且均小于0.40g,满足设备抗震性能要求。
Aimed to the anti-seismic problem of 750 kV high-voltage reactor,based on a 750kV high voltage reactor as the prototype,the analysis of seismic response by elastic-plastic time history method was proceeded without and with isolation by the software SAP2000.The results showed that under the action of degree 9 seismic,with isolation,the overall damping coefficient of the equipment was not more than 49%;the maximum amplification factor at the top of high-voltage bushing decreased from 3.96 to 0.99,and the peak acceleration response was not more than 24%of that without isolation,and it was less than 0.40g,which met the seismic performance requirement of the equipment.
作者
陈寅
江飞
张华
曹亮
朱东
CHEN Yin;JIANG Fei;ZHANG Hua;CAO Liang;ZHU Dong(Central Southern China Electric Power Design Institute Co.,Ltd.,of China Power Engineering Consulting Group,Wuhan 430071,China)
出处
《低温建筑技术》
2021年第8期96-99,共4页
Low Temperature Architecture Technology
关键词
高压套管
隔震结构
地震响应
减震系数
HV bushing
isolation structure
seismic response
damping coefficient
