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A platform for research: civil engineering, architecture and urbanism
Installation and construction method for arch rib of large-span deck type arch bridge
The invention relates to a large-span deck-type arch bridge arch rib installation construction method, and discloses a fabricated CFST arch bridge arch rib rapid construction method which comprises the steps that a finite element model is established on a computer according to the design size of an arch bridge, unstressed length or unstressed curvature data of all components are calculated, the components are machined according to the data, and the components are processed according to the data. Determining high-altitude positioning data, automatically analyzing target coordinates of a three-dimensional attitude fine adjustment control point by adopting a digital pre-assembly technology, and adjusting a three-dimensional attitude; all the components are transported to a construction site to be installed and positioned, and correction is conducted when the arch rib sections to be installed are positioned; and mounting indexes are controlled, and the arch rib sections are controlled to be continuously and accurately mounted until the arch ribs are closed. Through reasonable organization and key technology control, rapid construction of the arch rib cantilever is achieved, the state time of the large cantilever is shortened, and the splicing risk of the large cantilever is effectively reduced.
本发明为一种大跨径上承式拱桥拱肋安装施工方法，公开了装配式CFST拱桥拱肋快速施工方法，包括按照拱桥的设计尺寸在计算机上建立有限元模型，计算出各构件的无应力长度或无应力曲率数据，根据该数据进行加工构件，确定高空定位数据，并采用数字预拼装技术自动分析三维姿态精调控制点目标坐标，调整三维姿态；将所有构件运输施工现场进行安装定位，对待安装拱肋节段定位时进行修正；控制安装指标，控制拱肋节段连续、精确安装直至拱肋合龙。本发明通过合理的组织、关键技术控制，以实现拱肋悬臂快速施工，减少大悬臂状态时间，以有效降低大悬臂拼装风险。
Installation and construction method for arch rib of large-span deck type arch bridge
The invention relates to a large-span deck-type arch bridge arch rib installation construction method, and discloses a fabricated CFST arch bridge arch rib rapid construction method which comprises the steps that a finite element model is established on a computer according to the design size of an arch bridge, unstressed length or unstressed curvature data of all components are calculated, the components are machined according to the data, and the components are processed according to the data. Determining high-altitude positioning data, automatically analyzing target coordinates of a three-dimensional attitude fine adjustment control point by adopting a digital pre-assembly technology, and adjusting a three-dimensional attitude; all the components are transported to a construction site to be installed and positioned, and correction is conducted when the arch rib sections to be installed are positioned; and mounting indexes are controlled, and the arch rib sections are controlled to be continuously and accurately mounted until the arch ribs are closed. Through reasonable organization and key technology control, rapid construction of the arch rib cantilever is achieved, the state time of the large cantilever is shortened, and the splicing risk of the large cantilever is effectively reduced.
本发明为一种大跨径上承式拱桥拱肋安装施工方法，公开了装配式CFST拱桥拱肋快速施工方法，包括按照拱桥的设计尺寸在计算机上建立有限元模型，计算出各构件的无应力长度或无应力曲率数据，根据该数据进行加工构件，确定高空定位数据，并采用数字预拼装技术自动分析三维姿态精调控制点目标坐标，调整三维姿态；将所有构件运输施工现场进行安装定位，对待安装拱肋节段定位时进行修正；控制安装指标，控制拱肋节段连续、精确安装直至拱肋合龙。本发明通过合理的组织、关键技术控制，以实现拱肋悬臂快速施工，减少大悬臂状态时间，以有效降低大悬臂拼装风险。
Installation and construction method for arch rib of large-span deck type arch bridge
一种大跨径上承式拱桥拱肋安装施工方法
LIU QILIANG (author) / ZENG GUOSHENG (author) / ZHANG YI (author) / CHEN SHIQUAN (author) / LI KANG (author) / LIANG XIN (author) / ZHU ZHENGLUN (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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