Nonlinear Finite Element Analysis of Seismic Behavior of Steel Fiber Reinforced High Strength Concrete-filled Steel Tube Columns
Proper material constitutive models for steel fiber reinforced high strength concrete-filled steel tube(SFHCFT) columns subjected to combined constant axial load and lateral cyclic load are proposed and verified by the nonlinear finite element program ABAQUS against experimental data. The main parameters are concrete strength, diameter-to-thickness ratio of steel tube, volume percentage of steel fiber and axial compression force ratio. Lateral load-drift ratio curves of twelve long SFHCFT columns under combined constant axial load and cyclic lateral load were obtained. The results of calculated and experiment are agreement well. It is shown that the addition of steel fiber can improve the lateral load capacity of the columns. The lateral load capacity and ductility of columns both increased with the increasing of content of steel fiber.
Steel fiber reinforced high strength concrete Concrete-filled steel tube Nonlinear analysis
Juan Chen
School of Urban Construction, Yangtze University, China
国际会议
The First Anniversary of Wenchuan Earthquake(纪念汶川地震一周年国际学术会议)
成都
英文
400-404
2009-05-10（万方平台首次上网日期，不代表论文的发表时间）