中心城区桥梁快速化拆除的施工技术研究和实践

Research and Practice on Construction Technology of Rapid Demolition of Bridge in Central Urban Area

针对城市核心区桥梁拆除施工面临的交通繁忙、施工空间狭小、近邻建(构)筑物众多等实际问题,以"低影响度"建造和"高效率、保畅通"为基本原则,结合上海市天目路高架工程实际需求,提出了一种改造既有桥梁的快速化拆除技术。该技术通过自行式模块运输车配合组合支架,达到了大节段桥梁整跨拆除的目的,且具有施工速度快、无扬尘、无噪声污染、城市运营干扰低等优点。

In view of the practical problems faced by the bridge demolition construction in the central urban area,such as heavy traffic,narrow construction space,and many adjacent buildings(structures),a rapid demolition technology for the reconstruction of existing bridges is proposed based on the basic principles of"low impact"construction and"high efficiency and smooth traffic",combined with the actual needs of the elevated project of Tianmu Road in Shanghai.This technology achieves the goal of demolishing the overall large span section of the bridge through the combination of self-propelled modular transport vehicle and composite support,and has the advantages of fast construction speed,no dust,no noise pollution,and low urban operation interference.