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A platform for research: civil engineering, architecture and urbanism
Large-section integral closing construction method for truss arch bridge
The invention relates to a large-section integral closing construction method for a truss arch bridge. The method comprises the following steps: hoisting a large-size closure segment, vertically bending and deforming the large-size closure segment in the hoisting process, shortening the longitudinal size of the large-size closure segment, enabling the large-size closure segment to smoothly enter a closure opening, and then performing alignment welding, and realizing integral closing of large sections of the truss arch bridge. Compared with traditional multi-section support installation, the method has the advantages that temporary piers in water are reduced, the influence on the existing navigation channel is reduced, and the construction risk is reduced while the efficiency is improved.
本发明涉及一种桁架拱桥大节段整体合拢施工方法，起吊大尺寸合拢节段，大尺寸合拢节段在起吊过程中出现竖向挠曲变形，大尺寸合拢节段的纵向尺寸会缩短，使得大尺寸合拢节段能够顺利进入合拢口，然后进行对位焊接，实现桁架拱桥大节段整体合拢。与传统多节段支架安装相比较，本发明方法减小了水中临时墩设置，降低了对既有航道的影响，在提升效率的同时，降低了施工风险。
Large-section integral closing construction method for truss arch bridge
The invention relates to a large-section integral closing construction method for a truss arch bridge. The method comprises the following steps: hoisting a large-size closure segment, vertically bending and deforming the large-size closure segment in the hoisting process, shortening the longitudinal size of the large-size closure segment, enabling the large-size closure segment to smoothly enter a closure opening, and then performing alignment welding, and realizing integral closing of large sections of the truss arch bridge. Compared with traditional multi-section support installation, the method has the advantages that temporary piers in water are reduced, the influence on the existing navigation channel is reduced, and the construction risk is reduced while the efficiency is improved.
本发明涉及一种桁架拱桥大节段整体合拢施工方法，起吊大尺寸合拢节段，大尺寸合拢节段在起吊过程中出现竖向挠曲变形，大尺寸合拢节段的纵向尺寸会缩短，使得大尺寸合拢节段能够顺利进入合拢口，然后进行对位焊接，实现桁架拱桥大节段整体合拢。与传统多节段支架安装相比较，本发明方法减小了水中临时墩设置，降低了对既有航道的影响，在提升效率的同时，降低了施工风险。
Large-section integral closing construction method for truss arch bridge
一种桁架拱桥大节段整体合拢施工方法
WANG JIANXUN (author) / MA PENGPENG (author) / MENG XIANLI (author) / YAN JIAN (author) / CHEN LONG (author) / HU JIANPENG (author) / GONG XUXIANG (author) / LI YUKUN (author)
2021-09-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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