Study For The Feature Of Bearing Force About Cable Stayed Bridge Of The Super Breadth Composite Beam

This paper sets about analyzing and studying the feature of bearing force about kunyu river cable stayed bridge and spread it. Firstly , Routine analyses such as dynamic modal analysis,response spectrum analysis,buckling analysis were used to analyze the bridge .Secondly, only little number of studies dealing with the bridges like kunyu river cable stayed bridge which is the cable stayed bridge of the super breadth composite beam have been reported so far . therefore, it might be very essential to study the cable stayed bridge of the super breadth composite beam. Additionally, The main problems of the study are as follows:5, The distributing for stress of lengthways and transverse in transect;6, Discussing the change of stress of lengthways and transverse, while the breadth of bridge is changing;7, In the cable stayed bridge of the super breadth composite beam ,The lengthways reinforce rib and rigidity crossbeam exert influence on stress of bridge board;8, While tower and beam are concretion, main tower affects bridge board. For realizing above research, the computer aided design programs-sap91 and midas which are based on finite element method were also used to analyze the problems above. Loads included: the first permanent load,the most disadvantageous symmetrical locomotive loads,the most disadvantageous unsymmetrical locomotive loads and so on.By the studying of the paper , it is reduced to the guidance conclusions and proposes .