某旧有桥梁盖梁利用及加固设计

On utility of bent cap and consolidation design of some used bridge

为了使某旧有桥梁盖梁得到有效利用,对桥梁结构进行了分析,针对旧有盖梁重新利用的难点,提出了增大截面尺寸加固法、体外预应力加固法、改变结构体系加固法以及在关键截面粘贴钢板或纤维材料法四种方案,并探讨了各方案加固设计的可行性及施工要点,以选择出最优的方案。

In order to have the efficient use of the bent cap of some old bridge, the paper analyzes the bridge structure, aiming at the difficulty of reusing of bent cap points out the consolidation method by enlarging the section size, the consolidation method of the external prestress, the con- solidation method of changing structural system, and the key section bonding steel plate or the fiber material method, and explores the feasibility and construction points of the consolidation design of schemes, so as to select the optimal scheme.