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Fragility of disconnect switch subjected to random earthquake ground motions
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A fragility calculation scheme is estabtished in this paper for porcelain-type equipments subjected to random earthquake ground motions. All steps of the method are illustrated by the seismic damage analysis of GW4-110 disconnect switch. The model of the equipment is built applying the finite element method with flexible joints, and the seismic responseof the equipment is analyzed using elastic time history method. On the base, according to the strength damage index and Monte-Carlo Method, the seismic damage ratios are counted and the seismic fragility curves are presented. Then the seismic damage of GW4-110 disconnect switch can be predicted.
disconnect switchfragilityrandom earthquake ground motionstrength damage index
L(U) Bao-long、CHEN Ling-li、YE Zhi-ming
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Department of Civil Engineering, Shanghai University, Shanghai 200072, P. R. China
Science and Technology Commission of Shanghai Municipality
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