The Disease analysis and Reinforcement strategy of slight bending slab in a rigid-framed arch bridge

Common diseases of slight bending slab in rigid-framed arch bridge are presented in this paper.The main reason of slight bending slab diseases are derived from the changed boundary conditions and the weakened arch lateral stiffness by the local finite element analysis(FEA).According to the results of the FEA,the countermeasures of slight bending slab diseases are represented.Finally,FEA results of the reinforced rigid-framed arch bridge are given.