The analysis and research on the main bridge of Changxin viaduct

To ensure the safety, applicability, economy and innovation of the bridge, this article set the construction design of the Changxin viaduct in JiangYan highway as the basis, and analyzed overall design, prestressed concrete continuous rigid frame design and the construction key point. Analysis showed that the reasonable steel bunch decorating form, the correct mechanical model, the proper increasing thickness of the double thin-wall piers of the main bridge and the size of the root of the main girder are the keys to the bridge structure calculation. Only in this way can we make the right and reasonable overall design and precise structure calculation, so as to reach the safety, the applicable and economic innovation requirements of the bridge.