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以主系统非线性有限元模型为研究对象,采用ANSYS软件分析不同主泵结构对主系统地震载荷的影响。结果表明,2种主泵模型下主系统地震载荷应力评定均满足规范要求,主泵阻尼器位置要求提高土建抗震设计等级;采用使系统整体频率远离响应谱峰值区的主泵模型计算得到的主系统地震载荷较小。
Taking the nonlinear finite element model of the main system as the research object, the influence of different main pump structures on the seismic load of the main system is analyzed by ANSYS software. The results show that the main system seismic load stress assessment meets the requirements of the two main pump models. The position of the main pump dampers is required to improve the seismic design level of civil engineering. The main pump model which makes the overall frequency of the system far away from the peak area of the response spectrum is calculated. System seismic load is small.