反应谱分析和时程分析理论在电容器组架抗震性能计算中的应用

Application of response spectrum analysis and time-history analysis to seismic performance calculation of capacitors

采用反应谱分析法和时程分析理论对电容器进行了抗震分析,首先建立起了该装置的有限元模型,得到了该装置的前9阶模态,然后依照地震响应谱给该装置施加加速度载荷,得到了组架、塔架,角钢,绝缘支撑的应力与各层位移,在模态分析的基础上给该装置施加共振拍击波,同样提取组架、塔架,角钢,绝缘支撑的应力与各层位移响应,通过强度分析认定该装置强度满足抗震要求,该分析步骤与方法为工程实践有一定的借鉴意义。

Response spectrum and time-history analysis were applied to calculate anti-seismic of capacitor. First,the finite model was established to obtain the first nine order modal. Then,the acceleration load was applied to the device in finite element model according to earthquake response spectrum. The stress and displacement of group, tower,angle steel, insulation support were got. In the same way , resonance slap wave was applied to the device. Through the strength analysis concluded that the device satisfies the requirement of seismic intensity, steps and the method of this paper has certain reference significance for engineering practice.