Seismic Performance Analysis of RC Frames with ECC Short Columns Based on the IDA Method

Engineered cementitious composite (ECC) is a high-performance material with greater shear deformation and strength than normal concrete, which has been proposed for use as component in structures. This study modeled three frames, pure reinforced concrete (RC) frame, an RC frame short columns ECC columns, using the incremental dynamic analysis (IDA) method to evaluate contribution of structural performance. A modified IMK model was applied entire history mechanical behaviors columns. The IDA curves, interfloor displacement angle distribution limit state vertex frames were analyzed investigate seismic responses frames. results showed that would form weak layer on floor where located, greatly weakened performance structure. certified be effective improving formation improved structure certain extent relative capacity close at collapse level.