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尝试将隔震支座搁置在底部框架柱的顶部来加固加层的底层框架砌体房屋。针对一栋加层的底层框架砌体房屋,在ANSYS中建立了层间隔震结构和非隔震结构的模型。在程序中,用组合单元来模拟隔震层,隔震层参照双线性库仑摩擦阻尼恢复力模型和粘滞阻尼恢复力模型。进行了两类结构的动力特性分析。得出两类结构的自振周期和振型。结果表明,层间隔震结构的自振周期比非隔震结构的自振周期明显要长。进行了两类结构的动力时程分析。得出在地震作用下两类结构各部分的位移幅值和加速度幅值。得出两类结构各部分的位移和加速度动力时程曲线。最后,对计算结果进行了分析,得出一些有意义的结果和结论。
Attempts to reinforce the overburden ground floor masonry housing by resting the isolation bearings on top of the bottom frame column. Aiming at an additional layer of floor frame masonry building, a model of layered and non-isolated structures is established in ANSYS. In the program, the unit is used to simulate the isolation layer. The isolation layer refers to the bilinear Coulomb friction damping recovery force model and the viscous damping recovery force model. The dynamic characteristics of two types of structures were analyzed. The two types of structures are obtained. The results show that the natural period of the seismic isolation structure is obviously longer than that of the non-seismic isolation structure. Two kinds of structure dynamic time history analysis were carried out. The amplitude of displacement and acceleration of each part of two kinds of structures under earthquake are obtained. The displacement and acceleration dynamic time history curves of two types of structures are obtained. Finally, the calculation results are analyzed and some meaningful results and conclusions are drawn.