In order to study the seismic behavior of reinforced concrete columns with ECC-CFST composite sections in plastic hinge region,two reinforced concrete columns with ECC-CFST composite sections in plastic hinge region and one normal steel-reinforced concrete comparison column were subjected to low cyclic horizontal loading tests.The seismic per-formance index obtained from the test results including hysteresis curves,skeleton curves,ductility coefficients,residual displacements and energy dissipation capacities were quantita-tively analyzed.The test results showed that compared with the normal steel-reinforced con-crete column,the bearing capacity,stiffness and energy dissipation capacity of reinforced concrete columns with ECC-CFST composite sections in plastic hinge region were greatly im-proved,and the residual displacements were also effectively controlled.In addition,ECC ma-terial can work and deform collaboratively with steel pipe and the filling material inside the steel pipe.
关键词
塑性铰区/ECC/组合截面桥墩/抗震性能/低周反复水平荷载
Key words
plastic hinge region/ECC/composite section bridge pier/seismic performance/low cyclic horizontal loading
维普
万方数据