SEISMIC PERFORMANCE EVALUATION OF EXISTING WALL TYPE PRECAST REINFORCED CONCRETE RESIDENTIAL BUILDINGS CONSIDERING THEIR FOUNDATIONS

Abstract

Wall-type precast reinforced concrete (WPC) residential buildings using prefabricated concrete panels have maintained high structural quality, although they were constructed more than 40 years ago in Japan. In order to utilize them, seismic behavior of the existing buildings was evaluated by static pushover analyses considering their foundations. The failure mode in the transverse direction is rocking of the walls. The ultimate lateral strength is higher for the existing buildings with piles than without piles. The mode in the longitudinal direction is beam yielding, which is unchanged considering their foundations.