FLEXURAL BEHAVIOR OF CONCRETE BEAMS REINFORCED WITH HYBRID (FRP AND STEEL) BARS
The hybrid (FRP and steel) reinforcement arrangement, which places FRP bars at corner or near the outer surface of the cross section, and steel bars at inner or upper level, was studied. With reasonable ratio of FRP to steel, the beams could acquire required serviceability, ductility, and durability. In this paper, we analyzed the flexural behavior of the hybrid (FRP and steel) reinforced concrete beams. On the basis of others work, we proposed theoretical model and design model to predict the load capacity and deflection of the beams, and compared the predictions to the experimental results to verify the validity and reliability of the models. The results show that the theoretical model with proposed tension stiffening law is suitable to predict the loaddeflection curves of the beams; and the design models predict the flexural capacity, deflection under service load level in good agreement with experimental results.
concrete beams composite materials FRP bars flezural behavior
Xiao-Liang Zhang Wen-Jun Qu
Department of Building Engineering, Tongji University, Shanghai 200092, P.R. China Department of Building Engineering, Tongji University, Shanghai 200092, P.R.China
国际会议
广州
英文
330-335
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）