An experimental study on seismic ductility performance of concrete-filled steel piers made of SM570

Abstract

Cyclic loading experiments modeling steel piers filled with concrete were carried out to obtain basic data on the seismic performance. The steel-pier mechanical parameters, such as axial-force ratio and slenderness ratio, are assigned based on existing steel piers in Metropolitan expressway. The effect of axial-force ratio and slenderness parameters on the seismic performance are investigated through the experiments. The ultimate behavior of SM570 piers are almost identical with those of SM490 ones.