Shake-table tests of a three-story reinforced concrete frame with masonry infill walls

摘要

This paper presents the shake-table tests of a 2/3-scale, three-story, two-bay, reinforced concrete frame infilled with unreinforced masonry walls. The specimen is representative of the construction practice in California in the 1920s. The reinforced concrete frame had nonductile reinforcement details and it was infilled with solid masonry walls in one bay and infill walls with window openings in the other bay. The structure was subjected to a sequence of dynamic tests including white-noise base excitations and 14 scaled historical earthquake ground motion records of increasing intensity. The performance of the structure was satisfactory considering the seismic loads it was subjected to. The paper summarizes the design of the specimen and the major findings from the shake-table tests, including the dynamic response, the load resistance, the evolution of damage, and the final failure mechanism.