Shake Table Test on Seismic Response of a Precast Frame with Recycled Aggregate Concrete

摘要

A precast frame model made of Recycled Aggregate Concrete (RAC) was constructed with precast beams, columns and Cast-In-Place (CIP) joints. Then a shaking table test was carried out with three types of earthquake ground motions, namely Wenchuan, El Centro and artificial Shanghai waves. Based on the shaking test, structural responses such as dynamic characteristics, cracking and failure pattern, seismic responses as well as the overall seismic performance of the model were analyzed and evaluated. The results indicate that the precast RAC frame structure has an adequate load bearing potential as well as ductility against moderate and severe seismic excitations. Therefore, the perfect combination of RAC and precast structures is feasible to apply and popularize precast RAC frame structures with mid-rise buildings in the seismic regions.