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填充墙作为非结构构件,仍然参与结构抗震作用。综合考虑填充墙与主体结构之间的相互作用,采用修正等效斜撑压杆模拟填充墙,在Open SEES平台上建立填充墙框架简化模型。以最大层间位移角为地震需求参数,对简化模型进行增量动力分析,确定与填充墙框架极限状态相协调的抗震性能目标,并与纯框架性能及GB 50011—2001《建筑抗震设计规范》的3个性能水平进行比较,结果表明,填充墙的存在能显著提高主体结构的抗侧刚度,进而改善结构的抗震性能。
Infill walls, as non-structural members, are still involved in structural seismic behavior. Considering the interaction between the infill wall and the main structure, a modified equivalent diagonal strut was used to simulate the infill wall, and a simplified model of the infilled wall frame was built on the Open SEES platform. Taking the displacement angle of the maximum layer as the seismic demand parameter, the incremental dynamic analysis of the simplified model was carried out to determine the seismic performance of the frame which matched with the limit state of the infilled wall frame. Compared with the pure frame performance and GB50011-2001 “Seismic Design Code for Buildings” The results show that the existence of infill walls can significantly improve the lateral stiffness of the main structure and improve the seismic performance of the structure.