Abstract
A multi-directional fixed crack model based on the active crack concept which enables to simulate real crack propagations on concrete was created for reactive powder concrete (RPC) with 200N/mm2 compressive strength and 35N/mm2 flexural strength, which is one of ultra high performance fiber-reinforced concrete. Numerical implementations of the newly developed non-linear finite element analysis applying the crack propagation model were compared with the loading experiments of RPC beam. It was clarified that this FEM model could evaluate the flexure and shear behavior of RPC beams. Through the numerical simulations varying the factors of the effective depth, the shear span ratio and the tensile reinforcement ratio, the revised shear capacity equation was investigated in comparison with the experimental results.
