Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
River-crossing concrete box girder old bridge dismantling method based on floating bridge
The invention discloses a river-crossing concrete box girder old bridge dismantling method based on a floating bridge. The river-crossing concrete box girder old bridge dismantling method comprises the steps of (1) conducting concrete box girder dismantling preparation work; (2) dismantling bridge deck pavement, and dismantling auxiliary devices; (3) laying a loading floating bridge on the river surface of the bridge bottom, and parking a transport vehicle on the floating bridge; (4) dismantling the box girder main body, cutting the box girder main body into a plurality of sections, hoisting the box girder main body to the transport vehicle staying on the floating bridge, and then carrying away the box girder main body by the transport vehicle; (5) finally, removing supports on bridge piers, hoisting the bridge piers to the transport vehicle on the floating bridge, and then transporting away by the vehicle; and (6) after the bridge is dismantled, dismantling the floating bridge. According to the method, the floating bridge is erected at the bottom of the bridge, so that the cut concrete box girder can be directly and vertically hoisted to the transport vehicle after being cut, the concrete box girder is prevented from being greatly transferred, the hoisting efficiency is improved, the construction difficulty is greatly reduced, the construction safety is greatly improved, the construction period is greatly shortened, and comprehensively, the construction cost can be reduced.
本发明公开了一种基于浮桥的跨江混凝土箱梁旧桥拆除方法，包括以下步骤：1）进行拆除混凝土箱梁准备工作；2）拆除桥面铺装，附属设置拆除；3）在桥底的江面上铺设载重浮桥，将运输车辆停至浮桥上；4）拆除箱梁主体，将其切割成多段，吊至浮桥上停留的运输车辆上，然后由运输车辆运走；5）最后清楚桥墩上的支座，同样吊至浮桥上的运输车辆上，然后由车辆运走；6）桥梁拆除完毕后，拆除浮桥。本发明通过在桥底搭设浮桥，使得切割的混凝土箱梁在切割后，可以直接垂直吊放至运输车辆上，其避免了大幅度的转运混凝土箱梁，提高了吊装效率，且施工难度大大降低，施工安全性大为提高，大幅缩短施工周期，综合来看能够降低施工成本。
River-crossing concrete box girder old bridge dismantling method based on floating bridge
The invention discloses a river-crossing concrete box girder old bridge dismantling method based on a floating bridge. The river-crossing concrete box girder old bridge dismantling method comprises the steps of (1) conducting concrete box girder dismantling preparation work; (2) dismantling bridge deck pavement, and dismantling auxiliary devices; (3) laying a loading floating bridge on the river surface of the bridge bottom, and parking a transport vehicle on the floating bridge; (4) dismantling the box girder main body, cutting the box girder main body into a plurality of sections, hoisting the box girder main body to the transport vehicle staying on the floating bridge, and then carrying away the box girder main body by the transport vehicle; (5) finally, removing supports on bridge piers, hoisting the bridge piers to the transport vehicle on the floating bridge, and then transporting away by the vehicle; and (6) after the bridge is dismantled, dismantling the floating bridge. According to the method, the floating bridge is erected at the bottom of the bridge, so that the cut concrete box girder can be directly and vertically hoisted to the transport vehicle after being cut, the concrete box girder is prevented from being greatly transferred, the hoisting efficiency is improved, the construction difficulty is greatly reduced, the construction safety is greatly improved, the construction period is greatly shortened, and comprehensively, the construction cost can be reduced.
本发明公开了一种基于浮桥的跨江混凝土箱梁旧桥拆除方法，包括以下步骤：1）进行拆除混凝土箱梁准备工作；2）拆除桥面铺装，附属设置拆除；3）在桥底的江面上铺设载重浮桥，将运输车辆停至浮桥上；4）拆除箱梁主体，将其切割成多段，吊至浮桥上停留的运输车辆上，然后由运输车辆运走；5）最后清楚桥墩上的支座，同样吊至浮桥上的运输车辆上，然后由车辆运走；6）桥梁拆除完毕后，拆除浮桥。本发明通过在桥底搭设浮桥，使得切割的混凝土箱梁在切割后，可以直接垂直吊放至运输车辆上，其避免了大幅度的转运混凝土箱梁，提高了吊装效率，且施工难度大大降低，施工安全性大为提高，大幅缩短施工周期，综合来看能够降低施工成本。
River-crossing concrete box girder old bridge dismantling method based on floating bridge
一种基于浮桥的跨江混凝土箱梁旧桥拆除方法
SU CHUNSHENG (Autor:in) / LYU CHUNLEI (Autor:in) / ZHANG QING (Autor:in) / HE SHIMEI (Autor:in) / RAO SHENGBIN (Autor:in) / ZHAO HEMING (Autor:in) / QIAO SHUXUN (Autor:in) / JIANG XINHE (Autor:in) / DU CHANGSHENG (Autor:in) / LIN LIDONG (Autor:in)
27.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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