考虑刚体响应的多层响应谱抗震分析

Multi-layer Response Spectrum Seismic Analysis Considering the Rigid Modal Responses

目的研究刚体响应对多层响应谱抗震分析结果的影响。方法使用ANSYS15.0对某核电设备进行多层反应谱抗震分析,并对考虑刚体响应和未考虑刚体响应的计算结果进行对比分析。结果考虑刚体响应对不同标高约束处预埋板的基础载荷影响不同,且对部分标高的影响可能较大。结论对类似的核电设备进行多层响应谱抗震分析时,应注意考虑刚体响应的影响。

Objective To investigate the influence of rigid modal response on the results of MPRS seismic analysis.Methods The MPRS seismic analyses considering the rigid modal response and not considering the rigid modal response were carried out with software ANSYS15.0.And the foundation loads of the calculation were contrasted.Results Considering the rigid modal response had a relatively high effect on the supports of different elevations,especially for partial elevations.Conclusion Therefore,the influence of rigid modal response should be considered for the MPRS seismic analysis of this type of nuclear power equipment.