Numerical Simulation Investigation on Seismic Behavior of Fiber Reinforced Concrete Frame Columns

Abstract

In order to investigate the seismic performance of fiber reinforced concrete frame column under low cyclic loading, the mechanical behavior of PVA fiber reinforced concrete columns under low cyclic loading is simulated by using the fiber model via OpenSees software. Based on the comparison of numerical result and experimental result, parameter analysis of shear span ratio and axial compression ratio of fiber reinforced concrete columns were conducted. The result indicates that the displacement ductility factor increases first and then decreases with the increase of column shear span ratio, and when the shear span ratio is 3, the maximum is reached. The ultimate displacement angle increases with the increase of the shear span ratio. In addition, the displacement ductility factor and the ultimate displacement angle increase with the increase of the axial compression ratio of the column