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A platform for research: civil engineering, architecture and urbanism
Vertical rotation construction method for special-shaped steel main tower of cable-stayed bridge
The invention discloses a vertical rotation construction method for a special-shaped steel main tower of a cable-stayed bridge, which comprises the following steps of: erecting a temporary splicing platform, splicing a steel auxiliary tower, debugging hydraulic synchronous vertical rotation system equipment, synchronously loading a vertical rotation device and a stable rigging in a grading manner, standing for more than 2 hours after pre-vertical rotation of a bridge tower, and starting formal vertical rotation on the premise of confirming that the whole vertical rotation working condition is absolutely safe; the bridge towers are vertically rotated to the position close to the design position, measurement control is conducted, the vertical rotation speed is slowed down, and after hydraulic vertical rotation equipment is used for conducting fine adjustment in the vertical direction, accurate positioning and vertical rotation in place on all the bridge towers, bridge tower folding welding work and hydraulic synchronous vertical rotation system equipment unloading work are conducted. According to the vertical rotation construction method for the special-shaped steel main tower of the cable-stayed bridge, the problems that compared with construction modes such as erection of an integral support, great convenience and construction period superiority are achieved, in addition, construction measure cost is reduced, the total construction period is shortened, and practicability and innovativeness are high are solved.
本发明公开了斜拉桥异形钢主塔竖向转体施工工法，通过搭设临时拼装平台、拼装钢副塔、进行液压同步竖转系统设备调试，同步分级加载竖转器和稳定索具，桥塔预竖转后停留2小时以上，确认整个竖转工况绝对安全的前提下，开始正式竖转，竖转至接近设计位置，测量控制，放慢竖转速度，利用液压竖转设备对各桥塔进行竖直方向微调，精确定位，竖转就位后，进行桥塔合拢焊接工作和液压同步竖转系统设备卸载作业，本发明涉及桥体施工技术领域。该斜拉桥异形钢主塔竖向转体施工工法，解决相比搭设整体支架等施工方式具有很大的方便性及工期优越性，另外减少施工措施费及缩短施工总工期上，以及实用性强、创新性高的问题。
Vertical rotation construction method for special-shaped steel main tower of cable-stayed bridge
The invention discloses a vertical rotation construction method for a special-shaped steel main tower of a cable-stayed bridge, which comprises the following steps of: erecting a temporary splicing platform, splicing a steel auxiliary tower, debugging hydraulic synchronous vertical rotation system equipment, synchronously loading a vertical rotation device and a stable rigging in a grading manner, standing for more than 2 hours after pre-vertical rotation of a bridge tower, and starting formal vertical rotation on the premise of confirming that the whole vertical rotation working condition is absolutely safe; the bridge towers are vertically rotated to the position close to the design position, measurement control is conducted, the vertical rotation speed is slowed down, and after hydraulic vertical rotation equipment is used for conducting fine adjustment in the vertical direction, accurate positioning and vertical rotation in place on all the bridge towers, bridge tower folding welding work and hydraulic synchronous vertical rotation system equipment unloading work are conducted. According to the vertical rotation construction method for the special-shaped steel main tower of the cable-stayed bridge, the problems that compared with construction modes such as erection of an integral support, great convenience and construction period superiority are achieved, in addition, construction measure cost is reduced, the total construction period is shortened, and practicability and innovativeness are high are solved.
本发明公开了斜拉桥异形钢主塔竖向转体施工工法，通过搭设临时拼装平台、拼装钢副塔、进行液压同步竖转系统设备调试，同步分级加载竖转器和稳定索具，桥塔预竖转后停留2小时以上，确认整个竖转工况绝对安全的前提下，开始正式竖转，竖转至接近设计位置，测量控制，放慢竖转速度，利用液压竖转设备对各桥塔进行竖直方向微调，精确定位，竖转就位后，进行桥塔合拢焊接工作和液压同步竖转系统设备卸载作业，本发明涉及桥体施工技术领域。该斜拉桥异形钢主塔竖向转体施工工法，解决相比搭设整体支架等施工方式具有很大的方便性及工期优越性，另外减少施工措施费及缩短施工总工期上，以及实用性强、创新性高的问题。
Vertical rotation construction method for special-shaped steel main tower of cable-stayed bridge
斜拉桥异形钢主塔竖向转体施工工法
XIAO JIAZHE (author) / JIANG WEI (author) / LI WENYA (author) / SUN YIFENG (author) / QIU KAI (author) / LIU YU (author)
2022-04-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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