Construction method for demolishing arch bridge with rope saw cutting technology

The invention discloses a construction method for demolishing an arch bridge with a rope saw cutting technology. The method comprises the following steps: (1) demolition of guardrails and a bridge deck; (2) demolition of building on an arch; (3) demolition of an arch ring: before demolishing the arch ring, firstly installing a first support frame below the arch ring to support the arch ring, thenpunching rope saw construction holes in the arch ring, then cutting the arch ring into a plurality of arch ribs by using rope saws, finally lifting the arch ribs from the arch bridge sequentially by using a crane, and removing the first support frame after all the arch ribs are lifted off; and (4) demolition of the arch bridge. The method has the characteristics of being simple in process, strongin operability, high in construction progress, easy to manage safely, free of pollution, and free of building residue, saving the construction cost and the like. 本发明公开了种绳锯切割技术拆除拱桥施工工法，包括以下步骤：(1)护栏和桥面板的拆除；(2)拱上建筑的拆除；(3)拱圈的拆除，拆除