Numerical simulation on flexural Capacity of high-strength concrete beams reinforced with FRP bars and steel fiber under cyclic loading-unloading
In order to solve the wide crack width,large deflection and brittle failure of concrete structure reinforced with FRP bars,high-strength concrete structure reinforced with FRP bars and steel fiber,in which the steel fibers can be used to restrain the development of crack width and deflection,was proposed.In this paper,5 high-strength concrete beams reinforced with steel/FRP bars and steel fiber under cyclic loading-unloading were simulated based on the finite element mothed.The nonlinear stress-strain relationship of high-strength fiber reinforced concrete was taken into account in the simulation.The results show that the flexural capacity of high-strength concrete beams reinforced with FRP bars and steel fiber were significantly improved by increasing FRP reinforcement ratio.The results calculated by finite element mothed have a good agreement with experimental results.This study provides an effective way to simulate the flexual behavior of high-strength concrete beams reinforced with FRP bars and steel fiber under cyclic loading-unloading.
FRP bars steel fiber cyclic loading-unloading finite element method numerical simulation
CHENG Shengzhao ZHU Haitang CUI Guanghao HAN Juhong
School of Water Conservancy & Environment,Zhengzhou University,Zhengzhou,450001,China
国际会议
新加坡
英文
1-7
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）