转换层设置位置对框支剪力墙结构抗震性能影响的研究

Influence of Transformation Layer Location on Seismic Performance of Frame Supported Shear Wall Structure

随着人们对建筑功能布置与建筑空间利用的要求的日益提高,对框支剪力墙结构转换层的设置位置也提出了更高的标准,而采用传统的结构设计思路与方法已不能满足此类建筑的结构抗震设计要求。在PKPM抗震设计模块应用的基础上,按照高层建筑抗震设计规范的要求,引用转换层位于高位的框支剪力墙实际工程项目案例,对结构的自振周期、楼层位移及层间位移角等数据进行了分析研究,明确了框支剪力墙结构在地震作用下,结构的自振周期随着转换层设置高度的上升而逐渐降低,框支剪力墙底部剪力随之增大,结构的整体性及结构的抗震性能逐渐下降。

With the increasing requirements of building function layout and architectural space, the position setting of frame supported shear wall structure transformation layer meets higher standards, and the traditional structure design and method has been unable to meet the requirements of building structure seismic design. Based on the application of PKPM seismic design module, according to the specification requirements of high - rise building seismic design and combining with the actual project cases （ the transformation layer at the top of the frame supported shear wall） , this paper studies self - vibration period, floor displacement and interlayer displacement angle. It makes clear that under the action of earthquake, the self- vibration period of frame supported shear wall structure decreases with the increase of the transformation layer height. The shear force at the bottom of the wall increases, and the integrity of the structure and the seismic performance of the structure gradually decrease.