The Flexural Capacity And Fatigue Testing Research Of Reinforced RPC Ballast Tank

The flexural capacity tests to examine the force deformation characteristics of performance and test damage of reinforced RPC were done in this paper. The tests show that:under the grading50kN loading process, the force deformation characteristics and crack development of reinforced RPC ballast slot board have almost the same rule with ordinary reinforced concrete slab, showing a three-stage trend. With the enhancement of crack resistance of steel fibers, tensile cracks in reinforced RPC appears late compared with ordinary reinforced concrete slab, the overall stiffness improved, with good ductility and the failure mode is ductile failure; The peak compressive strain of reinforced RPC ballast slot board increases about1500με compared with the ordinary reinforced concrete slab; A simple numerical simulation on reinforced RPC ballast tank plate was done using ANSYS, calculation results are close to the actual experimental data. A fatigue test on the ballast slot boards of reinforced RPC is also done.The fatigue performance of the RPC board and study of fatigue life curve were analyzed in this paper. Study found that:PRC material and ordinary concrete have almost the same rule, under fatigue repeated loading, fatigue damage, fatigue deformation development show a stable three-stage law of development:In the stage of internal damage nucleation, PRC material increase more than the corresponding value of the ordinary concrete. In the stage of damage stability, RPC anti-fatigue cracking and with crack fatigue performance are better than ordinary concrete. In the stage of damage instability (similar to the corresponding values of ordinary concrete), at this stage, steel fiber is pulled off and can not work. Through ANSYS modeling analysis and calculations, The calculated and experimental results are compared to verify the correctness of the trial.