Pushover Analysis on Frame Structure under Effect of Filling Walls

The investigation and analysis are made for the destruction of the frame filling walls in Wenchuan Earthquake,the main failure modes of the frame filling walls are showed,and the reasons of damage are summarized;The simplified calculation model and frame bracing model are also proposed here based on the force characteristics of the frame structure for masonry filling walls,and the width of the bracing is derived by using the equivalent axial stiffness;Combined with practical engineerings,Pushover analysis are adopted for existing frame filling wall structure by using the simplified numerical model and frame bracing model,so as to assess the seismic capacity of the structure.The results show that: ① A lot of the earthquake energy is consumed by the filled walls,so the peripheral components could be protected.② Because of the filled walls,the state of force and the weak place of the structure would be changed.