The Filler And Arch Ring Of Spandrel Filled Masonry Arch Bridge Combined Effect Research

At present our country still has a great number of spandrel filled masonry arch bridge in service, the current specification only consider the bearing capacity of arch,and ignoring the interaction of architecture and the arch on the contribution to the force of bridge,this method is clearly conservative. The arch filler directly contact with the main arch ring, it will have a obvious influence to the force of main arch ring,so In this pape put the archfiller as the object of study, System analysis the relationship between the arch filler and the main arch ring for the force of bridge.The specific work is as follows:Using the universal finite element software ANSYS,establish a three dimensional solid model of naked arch based on current bridge codes,and a three dimensional solid model of non naked arch,Considering the contact effect of iller and the main arch ring.using effect coefficient α,to analysis the Combination on each section of the bridge.① Research the influence of defferent size,include the ratio of rise to span、the span and the thickness of the filler, establish two defferent model, compute the data of stress and strain on the different section, analysis the variation.② Research the influence of defferent properties of the materials, include the density、the cohesion、the friction angle of the filler, compute the data of stress and strain on the different section, analysis the variation.③ With a spandrel filled masonry arch bridges as an example, test the conclusions in this pape.The results of this study can provide a reference to design new bridge and reinforcement the diseases in the solid web arch bridge.