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Dismantling method of reinforced concrete continuous box girder overpass bridge
The invention discloses a dismantling method for a reinforced concrete continuous box girder overpass bridge. The method comprises the steps that: a girder body is planned in a segmented mode, temporary supports are erected corresponding to piers, the bottom of the girder body is firstly lifted and cut, and a rear pier column is cut, dismantled and moved away, so that the girder body and the piers of a to-be-dismantled bridge are dismantled in a segmented manner; and after the girder body and the piers are dismantled, bridge abutment structures on the two sides and the dismantled bridge body and the dismantled piers are crushed, and building slag generated in the crushing process is conveyed to a roadbed fill for layered filling, so that the overall dismantling work of the bridge is completed. Longitudinal segmented planning is conducted on the girder body according to the number of the piers, temporary buttress is correspondingly arranged on the side, in the longitudinal bridge direction, of each pier for supporting in a matched mode, then segmented cutting, hoisting and transferring are conducted, and the purposes of reducing noise, reducing pollution and relieving disturbance to the surrounding environment are achieved; and construction consumables are reduced while construction safety is guaranteed, the construction cost is reduced, the whole dismantling construction is convenient and rapid, the construction period is shortened, and the social influence is reduced.
本发明公布了一种钢筋混凝土连续箱梁跨线桥的拆除方法，通过对梁体进行分段规划、对应桥墩搭设临时支撑、先梁体兜底吊装切割以及后墩柱切割拆除调离的方式将待拆桥梁的梁体和桥墩分段拆除；在拆除梁体和桥墩后，对两侧的桥台结构以及被拆除的梁体和桥墩进行破碎，并将破碎过程中产生的建渣运至路基填方进行分层填筑完成桥梁整体拆除工作。本发明根据桥墩数量对梁体进行纵向分段规划，并对应在每一桥墩的纵桥向一侧设置一临时支墩配合支撑，再分段切割吊装调离，不仅达到了降低噪音、降低污染以及减轻对周边环境扰动的目的，而且在保证了施工安全的同时减少了施工耗材，降低了施工成本，整个拆除施工方便快速，缩短了施工周期，降低了社会影响。
Dismantling method of reinforced concrete continuous box girder overpass bridge
The invention discloses a dismantling method for a reinforced concrete continuous box girder overpass bridge. The method comprises the steps that: a girder body is planned in a segmented mode, temporary supports are erected corresponding to piers, the bottom of the girder body is firstly lifted and cut, and a rear pier column is cut, dismantled and moved away, so that the girder body and the piers of a to-be-dismantled bridge are dismantled in a segmented manner; and after the girder body and the piers are dismantled, bridge abutment structures on the two sides and the dismantled bridge body and the dismantled piers are crushed, and building slag generated in the crushing process is conveyed to a roadbed fill for layered filling, so that the overall dismantling work of the bridge is completed. Longitudinal segmented planning is conducted on the girder body according to the number of the piers, temporary buttress is correspondingly arranged on the side, in the longitudinal bridge direction, of each pier for supporting in a matched mode, then segmented cutting, hoisting and transferring are conducted, and the purposes of reducing noise, reducing pollution and relieving disturbance to the surrounding environment are achieved; and construction consumables are reduced while construction safety is guaranteed, the construction cost is reduced, the whole dismantling construction is convenient and rapid, the construction period is shortened, and the social influence is reduced.
本发明公布了一种钢筋混凝土连续箱梁跨线桥的拆除方法，通过对梁体进行分段规划、对应桥墩搭设临时支撑、先梁体兜底吊装切割以及后墩柱切割拆除调离的方式将待拆桥梁的梁体和桥墩分段拆除；在拆除梁体和桥墩后，对两侧的桥台结构以及被拆除的梁体和桥墩进行破碎，并将破碎过程中产生的建渣运至路基填方进行分层填筑完成桥梁整体拆除工作。本发明根据桥墩数量对梁体进行纵向分段规划，并对应在每一桥墩的纵桥向一侧设置一临时支墩配合支撑，再分段切割吊装调离，不仅达到了降低噪音、降低污染以及减轻对周边环境扰动的目的，而且在保证了施工安全的同时减少了施工耗材，降低了施工成本，整个拆除施工方便快速，缩短了施工周期，降低了社会影响。
Dismantling method of reinforced concrete continuous box girder overpass bridge
一种钢筋混凝土连续箱梁跨线桥的拆除方法
WEN GUANGDOU (author) / ZHOU XINGQIANG (author) / DING YAO (author) / SU GUO (author) / SHEN LIN (author) / BI JIN'AN (author)
2021-07-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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