Covered Bridge Arch Ring Downwarping Effects On The Upper Frame Structure

China’s ancient bridge construction,no matter in the plastic arts,construction techniques,history,culture,or cultural landscape lamp,have for the world bridge architectural history written a brilliant chapter.Which covered bridges is a special kind of bridges,it not only has the general structure of the bridge,but also has the unique architectural modeling,gives the bridge a variety of functional space,is the building of the architectural art and the bridge structure of the organic fusion of modeling Perfect product.In some scenic tourist areas,the natural scenery also requires it to be able to a unique attitude into it,to achieve a beautiful or magnificent environment to add style,then,the huge potential of the covered is reflected.The bridge is a typical bridge type which is functional,technical,economic and artistic.Therefore,people pay more and more attention to the study of the bridge.However,covered bridge design is often the bridge and the upper building structure considered separately,the research on the upper structure of bridge housing bridges are scanty,in fact the bridge deflection of bridges will have a negative impact on the upper part of the housing structure.Therefore,it is very important to analyze the influence of the deflection of the bridge arch on the upper frame structure.This paper is based on the background of the Qingjiang River Landscape Bridge in Jianmen County,Jiange County,Sichuan Province,and a large number of literatures are used,The calculation model of the bridge is established by Midas/ Civil.the Midas/Civil calculation model is established for bridge,using finite element software to calculate the data to discuss the effect of arch bridge deflection of frame structure.The main problems of the analysis are as follows:Firstly,the influence of the internal force and deformation of the upper frame structure caused by the maximum deflection of the corridor bridge is analyzed,Then,the internal deflection and deformation of the upper frame structure are studied further.Influence,so as to compare the results of several operations in order to study the bridge arch ring deflection on the impact of the upper frame structure.