A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span heavy steel truss bridge construction process
The invention belongs to the technical field of large-span heavy steel truss bridge construction, and particularly relates to a large-span heavy steel truss bridge construction technology which comprises the following steps that a total construction scheme is deeply designed; reasonably segmenting the bridge according to design calculation to prefabricate truss monomers, secondary beams and bridge decks, and determining a hoisting sequence; positioning and paying off are conducted according to planed and designed plane arrangement, and a foundation, pier columns, a temporary supporting frame and a protective door opening are erected; a proper crane is selected, and then the truss single bodies, the secondary beams and the bridge deck slabs which are prefabricated in a segmented mode are hoisted and connected one by one till the whole bridge framework is completed; the bridge is unloaded after bolt connection and welding pass inspection; observing the deformation of the bridge; and after the bridge deforms stably, follow-up subsidiary facility construction is conducted, and the whole construction process is completed. According to the construction technology of the large-span heavy steel truss bridge, construction can be conducted under the open traffic condition, and the problem that the construction site is limited is solved.
本发明属于大跨度重型钢桁架桥梁施工技术领域，具体涉及一种大跨度重型钢桁架桥梁施工工艺，包括如下步骤，对施工总方案进行深化设计；根据设计计算对桥梁进行合理分段预制桁架单体、次梁与桥面板，并确定好吊装顺序；根据规划设计的平面布置进行定位放线，并搭设基础、墩柱、临时支撑架与防护门洞；选择合适的吊机，然后对分段预制的各桁架单体、次梁与桥面板进行逐榀吊装、连接，直至整个桥梁架构完成；螺栓连接与焊接经检验合格后对桥梁进行卸载；对桥梁变形量进行观测；待桥梁变形稳定后进行后续附属设施施工，完成整个施工过程。本发明所述的大跨度重型钢桁架桥梁施工工艺，可在开放交通条件下进行施工，并解决了施工场地受限的难题。
Large-span heavy steel truss bridge construction process
The invention belongs to the technical field of large-span heavy steel truss bridge construction, and particularly relates to a large-span heavy steel truss bridge construction technology which comprises the following steps that a total construction scheme is deeply designed; reasonably segmenting the bridge according to design calculation to prefabricate truss monomers, secondary beams and bridge decks, and determining a hoisting sequence; positioning and paying off are conducted according to planed and designed plane arrangement, and a foundation, pier columns, a temporary supporting frame and a protective door opening are erected; a proper crane is selected, and then the truss single bodies, the secondary beams and the bridge deck slabs which are prefabricated in a segmented mode are hoisted and connected one by one till the whole bridge framework is completed; the bridge is unloaded after bolt connection and welding pass inspection; observing the deformation of the bridge; and after the bridge deforms stably, follow-up subsidiary facility construction is conducted, and the whole construction process is completed. According to the construction technology of the large-span heavy steel truss bridge, construction can be conducted under the open traffic condition, and the problem that the construction site is limited is solved.
本发明属于大跨度重型钢桁架桥梁施工技术领域，具体涉及一种大跨度重型钢桁架桥梁施工工艺，包括如下步骤，对施工总方案进行深化设计；根据设计计算对桥梁进行合理分段预制桁架单体、次梁与桥面板，并确定好吊装顺序；根据规划设计的平面布置进行定位放线，并搭设基础、墩柱、临时支撑架与防护门洞；选择合适的吊机，然后对分段预制的各桁架单体、次梁与桥面板进行逐榀吊装、连接，直至整个桥梁架构完成；螺栓连接与焊接经检验合格后对桥梁进行卸载；对桥梁变形量进行观测；待桥梁变形稳定后进行后续附属设施施工，完成整个施工过程。本发明所述的大跨度重型钢桁架桥梁施工工艺，可在开放交通条件下进行施工，并解决了施工场地受限的难题。
Large-span heavy steel truss bridge construction process
大跨度重型钢桁架桥梁施工工艺
WANG SHENG (author) / SUN JIANGUO (author) / LIU HANJIN (author) / LI FENGCHUN (author) / LIU YANSHUN (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Large-span steel truss arch bridge construction system and construction method
| European Patent Office | 2022
Overall dismantling construction process for large-span truss concrete bridge
| European Patent Office | 2022
Integral incremental launching construction method for large-span steel truss bridge
| European Patent Office | 2022
Assessment of Risks during Large-Span Steel Truss Arch Bridge Construction
| Tema Archive | 2013
Assessment of Risks during Large-Span Steel Truss Arch Bridge Construction
| British Library Conference Proceedings | 2013