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针对大型复杂结构的能量分析问题,采用SAP 2000建立大底盘双塔连体结构模型,利用MATLAB和SAP 2000的接口程序对其进行弹性能量分析,给出结构能量反应和单自由度体系能量反应之间的关系,以此分析结构的振型分解能量和建立能量反应谱,研究结构在三维地震作用下的弹塑性能量反应,并与无连体的情况进行比较。研究表明:振型分解能量分析法可以快速、有效地估算结构的能量反应,连体结构的抗震性能在一定程度上优于无连体结构。
For the energy analysis of large and complex structures, SAP 2000 was used to build a large-chassis twin-tower twin structure model. The elastic energy analysis was carried out by using MATLAB and SAP 2000 interface program. The energy response of the structure and the energy response of single degree of freedom system The relationship between the vibration mode and the energy response spectrum can be analyzed, and the elastic-plastic energy response of the structure under three-dimensional earthquake can be studied and compared with that of the non-unitary structure. The results show that the mode decomposition energy analysis method can quickly and effectively estimate the energy response of the structure, and the seismic performance of the Siamese structure is better than that of the Siamese-free structure.