A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Optimized construction method of steel-concrete superposed beam cable-stayed bridge
The invention discloses an optimized construction method of a steel-concrete superposed beam cable-stayed bridge, relates to a bridge construction method, and aims to solve the problem that the stress of a steel beam reaches a critical limit value in actual construction at present so as to ensure the safety of a bridge structure. According to the method, multiple construction procedures can be conducted at the same time, construction is facilitated, the construction period is remarkably shortened, the stress of the main longitudinal beams is optimized to a certain degree, meanwhile, the tensile stress of the bridge deck is reduced, and cracking of the bridge deck is avoided. According to the method, the internal force of the stay cable and the pulling-out amount of the two anchor heads of the stay cable can be accurately controlled, the line shape of a bridge can be further well controlled, and errors generated in the aspect of elevation in the construction process are finally reduced. The pouring sequence of the wet joints in the main longitudinal beam area is determined through the upstream and downstream elevations of the main longitudinal beam, the problem that the upstream and the downstream are easy to be asymmetrical in construction can be solved to a certain extent, and therefore the influence on the follow-up beam section installation line shape is reduced. The invention belongs to the technical field of bridge engineering construction.
一种钢‑混叠合梁斜拉桥的优化施工方法，它涉及一种桥梁施工方法，本发明为了解决目前在实际施工中钢梁应力达到临界限值的问题，以确保桥梁结构的安全性。本发明可以多施工工序同时进行，既方便施工显著缩短工期，又对主纵梁应力有一定程度的优化效果，同时减少桥面板的拉应力而避免桥面板的开裂。本发明可以准确地控制拉索内力与斜拉索二张锚头拔出量，进一步可以很好地控制桥梁的线形，最终减少施工过程中在标高方面产生的一些误差。主纵梁区域的湿接缝的浇筑顺序通过主纵梁上下游标高进行确定，可以从一定程度上解决施工中容易产生上下游不对称的情况，从而减小对后续梁段安装线形的影响。本发明属于桥梁工程建设技术领域。
Optimized construction method of steel-concrete superposed beam cable-stayed bridge
The invention discloses an optimized construction method of a steel-concrete superposed beam cable-stayed bridge, relates to a bridge construction method, and aims to solve the problem that the stress of a steel beam reaches a critical limit value in actual construction at present so as to ensure the safety of a bridge structure. According to the method, multiple construction procedures can be conducted at the same time, construction is facilitated, the construction period is remarkably shortened, the stress of the main longitudinal beams is optimized to a certain degree, meanwhile, the tensile stress of the bridge deck is reduced, and cracking of the bridge deck is avoided. According to the method, the internal force of the stay cable and the pulling-out amount of the two anchor heads of the stay cable can be accurately controlled, the line shape of a bridge can be further well controlled, and errors generated in the aspect of elevation in the construction process are finally reduced. The pouring sequence of the wet joints in the main longitudinal beam area is determined through the upstream and downstream elevations of the main longitudinal beam, the problem that the upstream and the downstream are easy to be asymmetrical in construction can be solved to a certain extent, and therefore the influence on the follow-up beam section installation line shape is reduced. The invention belongs to the technical field of bridge engineering construction.
一种钢‑混叠合梁斜拉桥的优化施工方法，它涉及一种桥梁施工方法，本发明为了解决目前在实际施工中钢梁应力达到临界限值的问题，以确保桥梁结构的安全性。本发明可以多施工工序同时进行，既方便施工显著缩短工期，又对主纵梁应力有一定程度的优化效果，同时减少桥面板的拉应力而避免桥面板的开裂。本发明可以准确地控制拉索内力与斜拉索二张锚头拔出量，进一步可以很好地控制桥梁的线形，最终减少施工过程中在标高方面产生的一些误差。主纵梁区域的湿接缝的浇筑顺序通过主纵梁上下游标高进行确定，可以从一定程度上解决施工中容易产生上下游不对称的情况，从而减小对后续梁段安装线形的影响。本发明属于桥梁工程建设技术领域。
Optimized construction method of steel-concrete superposed beam cable-stayed bridge
一种钢-混叠合梁斜拉桥的优化施工方法
LIU YUXIONG (author) / ZHAO JIAN (author) / LIU CHANGHUI (author) / SUN LEILEI (author) / DING YAN (author) / YU CHAO (author) / AN LUMING (author) / WEI JINGDONG (author) / XIAO YUNFEI (author)
2023-03-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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