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A platform for research: civil engineering, architecture and urbanism
Arch bridge structure for resisting unbalanced horizontal thrust
The invention provides an arch bridge structure for resisting unbalanced horizontal thrust. The arch bridge structure comprises a first arch support, a second arch support and a third arch support which are sequentially arranged along a preset extending path of an arch bridge, two rows of first opposite-stretch rods which are detachably connected with the second arch support and extend in the longitudinal direction of the arch bridge are arranged on the second arch support in a penetrating mode, and the two rows of first opposite-stretch rods are arranged in an up-down layered mode. The two rows of first opposite-stretch rods correspondingly extend to the first arch support and the third arch support respectively and are connected with the first arch support and the third arch support, thefirst arch support and the third arch support are respectively provided with a row of second opposite-stretch rods extending in the longitudinal direction of the arch bridge in a penetrating mode, the second opposite-stretch rods and the first opposite-stretch rods are vertically arranged in a layered mode, and the tensioning directions of the two rows of opposite-stretch rods corresponding to the same arch support are opposite. By tensioning the opposite-stretch rods before construction of all stages of the arch bridge, unbalanced horizontal tension borne by the arch support in the construction process can be offset, and the structural stability of the arch support is improved; the opposite-stretch rods are detachably connected with the arch supports, the opposite-stretch rods can be detached for turnover use after full-bridge construction is completed, the use efficiency of the opposite-stretch rods is improved, and the cost is reduced.
本申请提供一种对抗不平衡水平推力的拱桥结构，包括沿拱桥预设的延伸路径依次排布的第一拱座、第二拱座及第三拱座，第二拱座上穿设有与其可拆卸连接并沿纵桥向延伸的两排第一对拉杆，两排第一对拉杆上下分层布置，且两排第一对拉杆分别对应延伸至第一拱座及第三拱座处并与之连接，第一拱座和第三拱座上各穿设有一排沿纵桥向延伸并与第一对拉杆上下分层布置的第二对拉杆，对应于同一拱座的两排对拉杆的张拉方向相反。通过在拱桥各阶段施工前张拉对拉杆，可抵消施工过程中拱座受到的不平衡的水平拉力，提高拱座的结构稳定性；对拉杆与拱座可拆卸连接，对拉杆可在全桥施工完成后拆除以周转使用，提高对拉杆使用效率，降低成本。
Arch bridge structure for resisting unbalanced horizontal thrust
The invention provides an arch bridge structure for resisting unbalanced horizontal thrust. The arch bridge structure comprises a first arch support, a second arch support and a third arch support which are sequentially arranged along a preset extending path of an arch bridge, two rows of first opposite-stretch rods which are detachably connected with the second arch support and extend in the longitudinal direction of the arch bridge are arranged on the second arch support in a penetrating mode, and the two rows of first opposite-stretch rods are arranged in an up-down layered mode. The two rows of first opposite-stretch rods correspondingly extend to the first arch support and the third arch support respectively and are connected with the first arch support and the third arch support, thefirst arch support and the third arch support are respectively provided with a row of second opposite-stretch rods extending in the longitudinal direction of the arch bridge in a penetrating mode, the second opposite-stretch rods and the first opposite-stretch rods are vertically arranged in a layered mode, and the tensioning directions of the two rows of opposite-stretch rods corresponding to the same arch support are opposite. By tensioning the opposite-stretch rods before construction of all stages of the arch bridge, unbalanced horizontal tension borne by the arch support in the construction process can be offset, and the structural stability of the arch support is improved; the opposite-stretch rods are detachably connected with the arch supports, the opposite-stretch rods can be detached for turnover use after full-bridge construction is completed, the use efficiency of the opposite-stretch rods is improved, and the cost is reduced.
本申请提供一种对抗不平衡水平推力的拱桥结构，包括沿拱桥预设的延伸路径依次排布的第一拱座、第二拱座及第三拱座，第二拱座上穿设有与其可拆卸连接并沿纵桥向延伸的两排第一对拉杆，两排第一对拉杆上下分层布置，且两排第一对拉杆分别对应延伸至第一拱座及第三拱座处并与之连接，第一拱座和第三拱座上各穿设有一排沿纵桥向延伸并与第一对拉杆上下分层布置的第二对拉杆，对应于同一拱座的两排对拉杆的张拉方向相反。通过在拱桥各阶段施工前张拉对拉杆，可抵消施工过程中拱座受到的不平衡的水平拉力，提高拱座的结构稳定性；对拉杆与拱座可拆卸连接，对拉杆可在全桥施工完成后拆除以周转使用，提高对拉杆使用效率，降低成本。
Arch bridge structure for resisting unbalanced horizontal thrust
对抗不平衡水平推力的拱桥结构
ZHANG FENGHUANG (author) / XING ZHIQIANG (author) / LI HONGWEN (author) / ZHOU LIMING (author) / GE YANLI (author) / LIU HUAIGANG (author) / WANG HUAN (author) / ZHANG XIN (author) / WANG JINLIANG (author) / XIANG TAO (author)
2020-11-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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