谈省道孙吴线后沟桥危桥改造加固方案

On reconstruction and consolidation schemes for unsafe bridge for Hougou Bridge along provincial Sunwu Road

结合孙吴线后沟桥加固工程实例,对原桥上部双曲拱换T梁恒载进行了比较,指出在下部结构基本完好的情况下,可将上部结构改为预应力混凝土空心板、钢筋混凝土T梁、预应力混凝土箱梁,以节约资金。

Combining with the consolidation project of Hougou Bridge along Sunwu Road,the paper compares the dead load of T-beam which takes the place of the two-way curved arch bridge at upper part of the former bridge,and points out the upper structure of the bridge should be altered into the prestressed concrete hollow slabs,the reinforced concrete T-beam,and the prestressed concrete box girder with the premise of maintaining the lower structure to be intact,so as to save funds.