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首页> 外文期刊>International journal of steel structures >Seismic performance evaluation of the Highway N high-voltage Substation
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Seismic performance evaluation of the Highway N high-voltage Substation

机译：公路N高压变电站的抗震性能评估

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摘要

In this study, the Highway N Substation in Missouri was studied with finite element method for its vulnerability under seismic loading. The component of the substation system was modeled with due considerations of mass, stiffness and geometries. Full-scale shake table experiments were carried out on three electric switches to partially validate the finite element model (FEM). After a systematical modal analysis based on the FEM, response spectrum analyses were performed to characterize the dynamic behavior of 'rigid' buses and switches of the structure. In time-history analysis, two methods were employed to generate the seismic motions: 1) site-specific synthetic ground motion and 2) spectrum compatible ground motion. The results from both ground motions were analyzed and the magnitude and location of the maximum moments in each case were identified. The effect of slip joints on switches was examined and the maximum relative displacement under the seismic loads was identified.
机译：本研究以有限元法研究了密苏里州高速公路N变电站在地震荷载作用下的脆弱性。对变电站系统的组件进行建模时要适当考虑质量，刚度和几何形状。在三个电子开关上进行了全面的振动台实验，以部分验证有限元模型（FEM）。在基于FEM的系统模态分析之后，进行了响应谱分析，以表征结构的“刚性”母线和开关的动态行为。在时程分析中，采用了两种方法来产生地震运动：1）特定地点的合成地面运动和2）频谱兼容的地面运动。分析了两种地面运动的结果，并确定了每种情况下最大力矩的大小和位置。检查了滑动接头对开关的影响，并确定了地震载荷下的最大相对位移。

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