Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hole crossing method of bridge girder erection machine
The invention discloses a hole crossing method of a bridge girder erection machine, which comprises the following steps: a telescopic power mechanism drives a guide beam to stretch out, then a tail vehicle body falls to contact with a concrete beam, the tail of a main beam rises, a rear support leg leaves the concrete beam, the tail vehicle body, the telescopic power mechanism and a jacking mechanism are matched to drive the rear support leg, the main beam and the guide beam to move, and then a front support leg is erected on a second pier; the telescopic power mechanism drives the guide beam to extend to the second pier, then the jacking mechanism ascends, the middle supporting leg leaves the first pier, the tail vehicle body drives the rear supporting leg, the middle supporting leg and the main beam to move till the middle supporting leg falls on the second pier, then the jacking mechanism evacuates to one side of the middle supporting leg, and the front supporting leg retracts to the position below a pier cap of the second pier. The positions of the middle supporting leg, the rear supporting leg and the main beam are adjusted through the tail vehicle body and the telescopic power mechanism, and hole crossing is completed. By adopting the method and the equipment for hole crossing, the influence of stress and deflection on hole crossing can be reduced, the hole crossing step is simplified, and meanwhile, the quality and the manufacturing cost of the bridge girder erection machine are reduced.
本发明公开了一种架桥机的跨孔方法，伸缩动力机构带动导梁伸出，之后尾部车体下落与砼梁接触，主梁尾部升起，后支腿离开砼梁，尾部车体、伸缩动力机构和顶升机构配合带动后支腿、主梁和导梁移动，之后前支腿搭上桥墩二，伸缩动力机构带动导梁伸至桥墩二上，之后顶升机构升高，中支腿离开桥墩一，尾部车体带动后支腿、中支腿和主梁移动，直至中支腿落在桥墩二上，之后顶升机构撤离至中支腿一侧，前支腿收缩至桥墩二墩帽下方，中支腿、后支腿和主梁通过尾部车体和伸缩动力机构调节位置，完成跨孔；采用上述方法和设备跨孔，能够减小应力和挠度对跨孔的影响，简化跨孔步骤，同时降低了架桥机的质量和制造成本。
Hole crossing method of bridge girder erection machine
The invention discloses a hole crossing method of a bridge girder erection machine, which comprises the following steps: a telescopic power mechanism drives a guide beam to stretch out, then a tail vehicle body falls to contact with a concrete beam, the tail of a main beam rises, a rear support leg leaves the concrete beam, the tail vehicle body, the telescopic power mechanism and a jacking mechanism are matched to drive the rear support leg, the main beam and the guide beam to move, and then a front support leg is erected on a second pier; the telescopic power mechanism drives the guide beam to extend to the second pier, then the jacking mechanism ascends, the middle supporting leg leaves the first pier, the tail vehicle body drives the rear supporting leg, the middle supporting leg and the main beam to move till the middle supporting leg falls on the second pier, then the jacking mechanism evacuates to one side of the middle supporting leg, and the front supporting leg retracts to the position below a pier cap of the second pier. The positions of the middle supporting leg, the rear supporting leg and the main beam are adjusted through the tail vehicle body and the telescopic power mechanism, and hole crossing is completed. By adopting the method and the equipment for hole crossing, the influence of stress and deflection on hole crossing can be reduced, the hole crossing step is simplified, and meanwhile, the quality and the manufacturing cost of the bridge girder erection machine are reduced.
本发明公开了一种架桥机的跨孔方法，伸缩动力机构带动导梁伸出，之后尾部车体下落与砼梁接触，主梁尾部升起，后支腿离开砼梁，尾部车体、伸缩动力机构和顶升机构配合带动后支腿、主梁和导梁移动，之后前支腿搭上桥墩二，伸缩动力机构带动导梁伸至桥墩二上，之后顶升机构升高，中支腿离开桥墩一，尾部车体带动后支腿、中支腿和主梁移动，直至中支腿落在桥墩二上，之后顶升机构撤离至中支腿一侧，前支腿收缩至桥墩二墩帽下方，中支腿、后支腿和主梁通过尾部车体和伸缩动力机构调节位置，完成跨孔；采用上述方法和设备跨孔，能够减小应力和挠度对跨孔的影响，简化跨孔步骤，同时降低了架桥机的质量和制造成本。
Hole crossing method of bridge girder erection machine
一种架桥机的跨孔方法
ZHENG ZHISONG (Autor:in)
10.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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