【摘要】 多数转换层结构传力路径不明确、受力复杂,转换层附近常常形成薄弱层,对抗震极为不利。利用有限元软件SAP 2000模拟工程实例,通过改变板式转换层的设置位置建立了3种不同模型,采用振型分解反应谱法对不同模型结构的自振周期,侧移、层间位移、层间位移角,剪力与弯矩分配等抗震性能指标进行研究,得到板式转换层设置位置对结构抗震性能的影响规律,以期为类似工程设计提供参考。更多还原

【Abstract】 Most transition layer structures do not have a clear force path and hard to explain. A weak layer often appears near the transition layer, which has a bad effect on seismic performance. So the research on seismic performance of this kind of structures is of great significance. The SAP 2000 is used to model a project case and three different models are established by changing the position of thick plate transition layer. Natural vibration period, floor displacement, inter-floor displacement, inter-floor displacement angle, shear force and bending moment distribution are used as the seismic performance indicators and are analyzed by the mode-superposition response spectrum method. Ultimately, the effect of the position of thick plate transition layer on seismic performance of structures is clear which can provide a reference for similar engineering design.更多还原