Analysis On The Reinforcement Mechanism Of The Enlarged Cross-section About Masonry Arch-bridge

The masonry arch-bridge has making use of the local materials, saving steel bar and the cement, structure simple, advantageous to the popularization, the load bearing potential is big, upkeep costs few and so on merits, construction in our country are quite many. Recent years, along with the load rank's promotion, more and more masonry arch-bridges present the supporting capacity insufficiency and so much varying degree of the damage. Therefore, the research on masonry arch-bridge's reinforcement is imminent.The method of increasing the section reinforcement refers to component's above either under irrigating concrete or suppling steel bar, it enhances the component's supporting capacity, and is very direct-viewing, so it's widely applied on the old bridge's reinforcemen design.It is one common method on the masonry arch-bridge's reinforcementThe paper has carried on the simulation through large-scale generally finite element procedure ANSYS to around the bricklaying eccentric compression component reinforcement's stress process, analyzed the bricklaying eccentric compression component to increase the section reinforcement mechanism, before having obtained the reinforcement, the bricklaying arch ring supporting capacity evaluation method, and gave the computational method.about the masonry arch-bridge to increase the section reinforcementCalculating the example of the south mixed wooden bridge reinforcement to indicate that this article proposing the computational method is reasonable, it can be as the masonry arch-bridge computational method to increase the section reinforcement, has the important project application value.