夹角45°L形结构隔震层顶板研究设计分析

以云南省某夹角45°L形结构教学楼为基础，利用YJK和ETABS建立等长度模型，分别建立隔震层上部整体连接结构及双塔结构两种模型，改变层数从而控制模型质量比。通过改变模型质量比及隔震层顶板薄弱连接部位的连接宽度，研究不同变量对隔震层顶板应力的影响，从而确定不同质量比的隔震设计方案。结果显示：隔震层应力集中现象位置集中在端头、长边两端、薄弱连接凹凸处和梁柱投影范围内，采用上部整体连接结构隔震层的薄弱连接处楼板受力效果较好。

The Design and Analysis of the Top Plate of the Seismic Barrier of the L-shaped Structure at 45 Angle

Based on a teaching building with an angle of 45 degrees L structure in Yunnan province,the length model is established by YJK and ETABS,respectively,to establish two models,namely,the overall connection structure of the upper part of the isolation layer and the twin tower structure,and change the number of layers to control the quality ratio of the model.By changing the model mass ratio and the connection width of the weak connection part of the top plate of the isolation layer,the influence of different variables on the stress of the top plate of the isolation layer is studied,so as to determine the design scheme of the isolation of different mass ratios.The results show that the seismic layer stress is concentrated in the end head,long edge ends,weak connection bumps and beam column projection range,and the force effect of the floor at the weak connection of the seismic floor slab in the form of the whole connection is better.