The design and study of simply-supported continuous T beam of JiangYan highway

In order to extend the simply-supported continuous T beam widely in highway construction, this paper detailedly introduced the structure analysis and construction points of the prestressed concrete simply-supported continuous T beam of the Changxin viaduct with 40 m approach span in the Jiangyan highway. The various indicators of strength and deformation of it can meet the standard requirements. The structure is safe and reliable, it has the reasonable stress. All these can effectively improve the automobile comfortable parameters of the bridge with this structure. At the same time, the construction method of this structure is simple and feasible, so it can meet the requirements of the construction of factory, standardization and mating and then to greatly speed up the construction progress. The simply-supported continuous T beam will have further promotion in highway with this construction proceeding.