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随着规范的修订和使用要求的提高,需要对按原有规范建造的贮液池重新进行抗震性能分析,由此验算贮液池是否满足工作性能和生产需要。本文采用两种不同的计算方法:一是拟静力的震度法,采用Midas软件建立贮液池的三维模型并考虑土的作用进行分析;二是动力时程分析方法,采用Ansys软件建立贮液池的两个典型截面的二维模型并建立土单元进行分析。通过对两种分析方法的对比,验证了震度法的可靠性,为国内地下结构抗震验算提供新的思路。
With the revision of the code and the improvement of the requirements for use, it is necessary to re-evaluate the seismic performance of the storage tanks built according to the original specifications so as to verify whether the storage tanks meet the performance requirements and production needs. In this paper, two different calculation methods are used: one is quasi-static seismic method, the three-dimensional model of reservoir is established by Midas software and the effect of soil is considered; the other is dynamic time history analysis method, Two-dimensional models of two typical sections of a pool and the establishment of soil units for analysis. By comparing the two analytical methods, the reliability of the seismic method is verified, which provides a new idea for seismic checking of underground structures in China.