The main bridge of Hefei Guangde Road Bridge is an asymmetric three-span continuous steel arch bridge with a span of 50 m+135 m+45 m and the total length is 230 m.Starting from the conception of the scheme,relying on the demand of the bridge landscape,through the transformation process from the symmetrical structure system of the traditional steel arch bridge to the asymmet-rical layout,the scheme that the structure is the landscape is formed.Because of the asymmetry of the structure,this bridge has a spe-cial design compared with other bridges.Firstly,the special design of the main structural components is explained.Then,in the aspect of seismic design,the large cantilever lateral swing seismic system is adopted for the first time,which reduces the seismic stress of wind bracing by 30%.Finally,the application characteristics of BIM model in this bridge are explained.
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