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A platform for research: civil engineering, architecture and urbanism
Reverse buckling cable reinforced large-span suspension bridge and reasonable bridge forming state determination method
The invention relates to a reverse buckling cable reinforced large-span suspension bridge and a reasonable finished bridge state determination method. The suspension bridge comprises a support, a main beam arranged on the support, bridge towers arranged on the two sides of the main beam, a main cable structure arranged on the main beam and matched with the bridge towers, and a reverse buckling cable structure arranged below the main beam and matched with the main beam. The reasonable bridge forming state determination method comprises the steps that when the reasonable bridge forming state of the suspension bridge is determined, the acting force of the reverse buckling cable structure is equivalent to the vertical acting force applied to the main cable structure, then the whole is divided into the main cable structure and the reverse buckling cable structure to be considered separately, and the main cable structure and the reverse buckling cable structure are combined after respective balance states are found. Compared with the prior art, the transverse rigidity of the whole structure can be improved through the reverse buckling cable structure, it is ensured that the structure can still be in a normal working state under the action of the maximum wind load, the transverse displacement of the main beam under the action of the wind load is obviously reduced, and the vertical rigidity of the structure under the action of the live load is increased.
本发明涉及一种反扣索加强型大跨径悬索桥及合理成桥状态确定方法，悬索桥包括支座、设置在支座上的主梁、设置在主梁两侧的桥塔、设置在主梁上并与桥塔相适配的主缆结构以及设置在主梁下方并与主梁相适配的反扣索结构；合理成桥状态确定方法为：在确定悬索桥合理成桥状态时，将反扣索结构的作用力等效为施加在主缆结构的竖向作用力，然后将整体分为主缆结构及反扣索结构分开考虑，找到各自的平衡态之后再进行组合。与现有技术相比，本发明中的反扣索结构可以提高整个结构的横向刚度，确保在最大风荷载的作用下结构仍能处于正常工作状态，使风荷载作用下主梁的横向位移明显降低，并使活载作用下结构竖向刚度有所增加。
Reverse buckling cable reinforced large-span suspension bridge and reasonable bridge forming state determination method
The invention relates to a reverse buckling cable reinforced large-span suspension bridge and a reasonable finished bridge state determination method. The suspension bridge comprises a support, a main beam arranged on the support, bridge towers arranged on the two sides of the main beam, a main cable structure arranged on the main beam and matched with the bridge towers, and a reverse buckling cable structure arranged below the main beam and matched with the main beam. The reasonable bridge forming state determination method comprises the steps that when the reasonable bridge forming state of the suspension bridge is determined, the acting force of the reverse buckling cable structure is equivalent to the vertical acting force applied to the main cable structure, then the whole is divided into the main cable structure and the reverse buckling cable structure to be considered separately, and the main cable structure and the reverse buckling cable structure are combined after respective balance states are found. Compared with the prior art, the transverse rigidity of the whole structure can be improved through the reverse buckling cable structure, it is ensured that the structure can still be in a normal working state under the action of the maximum wind load, the transverse displacement of the main beam under the action of the wind load is obviously reduced, and the vertical rigidity of the structure under the action of the live load is increased.
本发明涉及一种反扣索加强型大跨径悬索桥及合理成桥状态确定方法，悬索桥包括支座、设置在支座上的主梁、设置在主梁两侧的桥塔、设置在主梁上并与桥塔相适配的主缆结构以及设置在主梁下方并与主梁相适配的反扣索结构；合理成桥状态确定方法为：在确定悬索桥合理成桥状态时，将反扣索结构的作用力等效为施加在主缆结构的竖向作用力，然后将整体分为主缆结构及反扣索结构分开考虑，找到各自的平衡态之后再进行组合。与现有技术相比，本发明中的反扣索结构可以提高整个结构的横向刚度，确保在最大风荷载的作用下结构仍能处于正常工作状态，使风荷载作用下主梁的横向位移明显降低，并使活载作用下结构竖向刚度有所增加。
Reverse buckling cable reinforced large-span suspension bridge and reasonable bridge forming state determination method
一种反扣索加强型大跨径悬索桥及合理成桥状态确定方法
ZHANG SHAOQIANG (author) / JIANG CHENCHEN (author) / HOU SHENGJUN (author) / TANG WEIYU (author)
2022-04-26
Patent
Electronic Resource
Chinese
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