预应力上承式桁架T型刚构拆除工艺及安全控制

Demolition Technology and Safety Control of Prestressed Deck Truss T-shaped Rigid Frame

本文重点阐述福州既有洪山桥桁架T型刚构的拆除工艺、主要安全风险源及其控制,通过多种方案的比选,选择安全可靠、环保节能、造价相对较低的悬臂静力切割拆除法,重点讲述拆除工艺及安全控制,可供今后同类桥梁的拆除参考。

This paper focuses on the demolition technology,main safety risk sources and its control of the trussed T-shaped rigid frame of the existing Hongshan Bridge in Fuzhou.Through the comparison of various plans,the safe,reliable,environmental protection and energy saving cantilever static cutting demolition method with relatively low cost was chosen.It focused on the demolition technology and safety control,for the future demolition reference of similar bridges.