Analysis of Mechanical Performance of Continuous FRP-concrete Composite Slabs Considering Internal Force Redistribution
FRP-concrete composite slab is a new type of composite slab.Due to the linear elastic properties of FRP,the stress acting on it as a continuous structure is significantly different from that of concrete continuous beams.To study the mechanical properties of continuous composite beams,based on the conjugate beam method,this paper proposes a stress analysis method that considers the redistribution of internal forces.For each working condition,the relationship between the external load and the bending moment of the composite plate during the entire process of loading can be analyzed using the corresponding single force analysis equation,which is easy to calculate.In addition,the stress analysis equations of the composite plate under two common conditions of symmetrical concentrated loading and fully distributed uniform load in the middle of the double span were given,and compared with the relevant experimental results.The results show that the calculated values are in good agreement with the experimental values,and the proposed method can effectively analyze the stress of the composite plate.
FRP-concrete composite slabinternal force redistributioncontinuousmechanical performance
万方数据
维普
