Abstract
Shaking table tests were carried out on two recycled aggregate concrete (RAC) frames, one of which was cast-in-place (CIP) and the other was precast. The dimensions and reinforcements of the two structures were designed similarly for the purpose of comparing seismic performance. The comparative analysis of the structural behavior indicated that both the models performed favorably with respect to their capacity for seismic resistance and presented similar dynamic response tendencies in the elastic and early nonlinear stage. In the later elastoplastic stage, for the precast RAC frame, the deformation was relatively larger, the overall seismic capacity was lower and the stiffness degradation was faster compared to the CIP frame. A further analysis of the frame joints of the two frames was undertaken and it demonstrated that serious damage to the post-cast joints in the precast frame was the main reason for the inferior structural seismic behavior during earthquakes of high-level intensity.
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