A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span continuous rigid frame arch bridge arch rib vertical integral lifting system and lifting method
The invention provides a vertical integral lifting system and method for an arch rib of a large-span continuous rigid frame arch bridge, and belongs to the technical field of bridge construction. The problems that it is difficult to guarantee that the arch rib line type meets the standard when the middle section of an existing arch bridge is vertically lifted, and alignment with pier-side arch ribs after lifting is difficult to guarantee are solved. The lifting jack anchorage device has the reverse motion self-locking performance, lifting and lowering are very safe, and a component can be reliably locked at any position in the lifting process for a long time; the lifting system has a millimeter-level fine adjustment function and can realize vertical accurate positioning in the air, so that accurate alignment of the middle section arch rib and the pier-side arch rib is realized; the equipment is high in automation degree, simple to operate, good in safety, high in reliability and wide in application range; the hydraulic pump station adopts a one-driving-two design, the number of the pump stations is reduced under the condition that the control requirement is met, the occupied area and the length of an oil pipe are reduced, and each lifting jack hydraulic system in the pump station is completely independent and does not influence each other.
本发明提供了一种大跨径连续刚构拱桥拱肋竖向整体提升系统与提升方法，属于桥梁施工技术领域。为了解决现有拱桥中段竖向提升时难以保证拱肋线型符合基准，且难以保证提升后与墩旁拱肋的对准的问题。本发明的提升千斤顶锚具具有逆向运动自锁性，提升下放十分安全，并且构件可在提升过程中的任意位置长期可靠锁定；提升系统具有毫米级的微调功能，能实现空中垂直精确定位，进而实现中段拱肋与墩旁拱肋的精准对位；设备自动化程度高，操作简单，安全性好，可靠性高，适应面广；液压泵站采用一拖二设计，在满足控制要求情况下减少泵站数量减少占地面积和油管长度，泵站内每台提升顶液压系统完全独立互不影响。
Large-span continuous rigid frame arch bridge arch rib vertical integral lifting system and lifting method
The invention provides a vertical integral lifting system and method for an arch rib of a large-span continuous rigid frame arch bridge, and belongs to the technical field of bridge construction. The problems that it is difficult to guarantee that the arch rib line type meets the standard when the middle section of an existing arch bridge is vertically lifted, and alignment with pier-side arch ribs after lifting is difficult to guarantee are solved. The lifting jack anchorage device has the reverse motion self-locking performance, lifting and lowering are very safe, and a component can be reliably locked at any position in the lifting process for a long time; the lifting system has a millimeter-level fine adjustment function and can realize vertical accurate positioning in the air, so that accurate alignment of the middle section arch rib and the pier-side arch rib is realized; the equipment is high in automation degree, simple to operate, good in safety, high in reliability and wide in application range; the hydraulic pump station adopts a one-driving-two design, the number of the pump stations is reduced under the condition that the control requirement is met, the occupied area and the length of an oil pipe are reduced, and each lifting jack hydraulic system in the pump station is completely independent and does not influence each other.
本发明提供了一种大跨径连续刚构拱桥拱肋竖向整体提升系统与提升方法，属于桥梁施工技术领域。为了解决现有拱桥中段竖向提升时难以保证拱肋线型符合基准，且难以保证提升后与墩旁拱肋的对准的问题。本发明的提升千斤顶锚具具有逆向运动自锁性，提升下放十分安全，并且构件可在提升过程中的任意位置长期可靠锁定；提升系统具有毫米级的微调功能，能实现空中垂直精确定位，进而实现中段拱肋与墩旁拱肋的精准对位；设备自动化程度高，操作简单，安全性好，可靠性高，适应面广；液压泵站采用一拖二设计，在满足控制要求情况下减少泵站数量减少占地面积和油管长度，泵站内每台提升顶液压系统完全独立互不影响。
Large-span continuous rigid frame arch bridge arch rib vertical integral lifting system and lifting method
一种大跨径连续刚构拱桥拱肋竖向整体提升系统与提升方法
LI CHENGBIN (author) / HAN CHUNGUANG (author) / WANG ZHENG (author) / LIANG JIANGFAN (author) / YU LIANG (author) / TAO ZHONGYUAN (author) / ZHANG YUELEI (author) / ZHOU ZHAO (author)
2024-03-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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