| 大型电气设备瓷套管地震易损性分析 |
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| 引用本文： | 杨春侠,赵晓宇,揭双全,曾楠,吴艳谋,陈树.大型电气设备瓷套管地震易损性分析[J].世界地震工程,2022,38(1):167-174. |
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| 作者姓名： | 杨春侠 赵晓宇 揭双全 曾楠 吴艳谋 陈树 |
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| 作者单位： | 长沙理工大学 土木工程学院, 长沙 410114 |
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| 基金项目： | 国家自然科学基金项目(51678067);湖南省教育厅优秀青年项目(1813141)。 |
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| 摘 要： | 通过对电气设备进行增量动力分析（IDA），得出在不同地震波作用下瓷套管根部的应力值，回归分析得出瓷套管应强比（RSS）与地震峰值加速度（PGA）的关系式。以瓷套管应强比作为整体性能指标，进行地震易损性分析，得出瓷套管在不同破坏状态下的应强比值区间，给出瓷套管地震失效概率与地震峰值加速度之间的计算公式，并绘制瓷套管在不同地震波作用下处于不同破坏等级状态的地震易损性曲线，为评估变电站地震灾害损失提供了理论依据。
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| 关 键 词： | 瓷套管 地震易损性分析 破坏等级 有限元建模 对数正态分布 |
Seismic fragility analysis of porcelain bushing for large electrical equipment |
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| YANG Chunxia,ZHAO Xiaoyu,JIE Shuangquan,ZENG Nan,WU Yanmou,CHEN Shu.Seismic fragility analysis of porcelain bushing for large electrical equipment[J].World Information On Earthquake Engineering,2022,38(1):167-174. |
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| Authors: | YANG Chunxia ZHAO Xiaoyu JIE Shuangquan ZENG Nan WU Yanmou CHEN Shu |
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| Affiliation: | School of Civil Engineering, Changsha University of Science and Technology, Changsha 410114, China |
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| Abstract: | The stress value of porcelain bushing root under different seismic waves was obtained by incremental dynamic analysis（IDA），and the relationship between RSS and PGA was obtained by regression analysis.In porcelain bushing should be stronger than the overall performance indicators，seismic fragility analysis，draw a porcelain casing under different damage states should strong ratio range，porcelain bushing is given between earthquake failure probability and the peak acceleration of calculation formula，and draw porcelain casing under different seismic wave under different status of seismic fragility curve，for substation provides theory basis for earthquake disaster loss assessment. |
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| Keywords: | porcelain casing seismic vulnerability analysis damage level finite element modeling logarithmic normal distribution |
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