A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Highway span iron bridge dismantling method
The invention belongs to the field of equipment, and particularly relates to a highway span iron bridge dismantling method which comprises the following steps: various pipelines on a bridge are dismantled; breaking and closing the road; removing the anti-collision wall; sidewalk slabs are chiseled away transversely; the skylight is blocked, and the anti-throwing net and the handrail are detached;paving layer concrete of the bridge deck is cut along the hollow slab lap joint seams; dismantling the hollow slabs; laying a bridge girder erection machine transverse moving rail, installing a bridgegirder erection machine, selecting a to-be-dismantled box girder lifting point and connecting the to-be-dismantled box girder lifting point with a lifting hook of the bridge girder erection machine;blocking the skylight and cutting longitudinal seams of the diaphragm plate; releasing up-and-down connection of the box girder support; a bridge girder erection machine passes through the hole; hoisting the box girder by a bridge girder erection machine; returning the bridge girder erection machine; dismantling bridge abutment. The road-span railway flyover has the beneficial effects that the road-span railway flyover can be dismantled with the least blocking times and the shortest blocking time on the premise of ensuring the railway traffic safety, so that the interference to railway transportation is reduced to the maximum extent, the construction is convenient and fast, the construction period is shortened, and the construction cost is reduced; a static cutting technology is adopted for a bridge deck, noise and vibration are small, and safety is high.
本发明属于设备领域，具体涉及一种公跨铁桥拆除方法，拆除桥上各类管线路；公路断道、封闭；拆除防撞墙；横向凿除人行道板；封锁天窗,拆除防抛网、栏杆；沿空心板搭接缝切割桥面的铺装层混凝土；拆除空心板；铺设架桥机横移轨道，并安装架桥机，选定待拆除的箱梁吊点并与架桥机的吊钩连接；封锁天窗,切割横隔板纵缝；解除箱梁支座上下联系；架桥机过孔；架桥机吊运箱梁；架桥机回位；拆除桥台。本发明的有益效果是：在确保铁路行车安全的前提下，能以最少的封锁次数，最短的封锁时间拆除该公跨铁立交桥，以最大限度减少对铁路运输的干扰，施工方便快捷，缩短了施工周期，减少了施工成本；桥面采用静力切割技术，噪音且振动小，安全性高。
Highway span iron bridge dismantling method
The invention belongs to the field of equipment, and particularly relates to a highway span iron bridge dismantling method which comprises the following steps: various pipelines on a bridge are dismantled; breaking and closing the road; removing the anti-collision wall; sidewalk slabs are chiseled away transversely; the skylight is blocked, and the anti-throwing net and the handrail are detached;paving layer concrete of the bridge deck is cut along the hollow slab lap joint seams; dismantling the hollow slabs; laying a bridge girder erection machine transverse moving rail, installing a bridgegirder erection machine, selecting a to-be-dismantled box girder lifting point and connecting the to-be-dismantled box girder lifting point with a lifting hook of the bridge girder erection machine;blocking the skylight and cutting longitudinal seams of the diaphragm plate; releasing up-and-down connection of the box girder support; a bridge girder erection machine passes through the hole; hoisting the box girder by a bridge girder erection machine; returning the bridge girder erection machine; dismantling bridge abutment. The road-span railway flyover has the beneficial effects that the road-span railway flyover can be dismantled with the least blocking times and the shortest blocking time on the premise of ensuring the railway traffic safety, so that the interference to railway transportation is reduced to the maximum extent, the construction is convenient and fast, the construction period is shortened, and the construction cost is reduced; a static cutting technology is adopted for a bridge deck, noise and vibration are small, and safety is high.
本发明属于设备领域，具体涉及一种公跨铁桥拆除方法，拆除桥上各类管线路；公路断道、封闭；拆除防撞墙；横向凿除人行道板；封锁天窗,拆除防抛网、栏杆；沿空心板搭接缝切割桥面的铺装层混凝土；拆除空心板；铺设架桥机横移轨道，并安装架桥机，选定待拆除的箱梁吊点并与架桥机的吊钩连接；封锁天窗,切割横隔板纵缝；解除箱梁支座上下联系；架桥机过孔；架桥机吊运箱梁；架桥机回位；拆除桥台。本发明的有益效果是：在确保铁路行车安全的前提下，能以最少的封锁次数，最短的封锁时间拆除该公跨铁立交桥，以最大限度减少对铁路运输的干扰，施工方便快捷，缩短了施工周期，减少了施工成本；桥面采用静力切割技术，噪音且振动小，安全性高。
Highway span iron bridge dismantling method
一种公跨铁桥拆除方法
LIU XIONG (author) / XIN XIN (author) / GUAN XIBIN (author) / HAN XIPING (author) / TAO QI (author) / LIU XIANGMIN (author) / LIU CHANGJI (author) / CHEN SHOUZHAO (author) / WANG QI (author) / FENG YAN (author)
2020-05-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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