Arch bridge structure for resisting unbalanced horizontal thrust
A technology for balancing horizontal and arch bridges, applied in the direction of arch bridges, bridges, bridge parts, etc., can solve problems such as potential safety hazards, influence of abutment stability, unbalanced horizontal thrust, etc., to maintain structural stability, avoid unbalanced deformation, and ensure The effect of structural stability
Pending Publication Date: 2020-11-03
ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD
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Problems solved by technology
[0003] When the existing continuous arch bridge is constructed on the arch ring and the arch structure, the arch foot of the arch ring will generate an unbalanced horizontal thrust on the abutment, and the unbalanced horizontal thrust will affect the stability of the abutment, and there are extreme big security risk
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[0026] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.
[0027] See Figure 1 to Figure 4 , the present application relates to an arch bridge structure against unbalanced horizontal thrust, and mainly relates to a double-arch bridge structure, which includes an abutment and a pair of tie rods detachably connected to the abutment, and the arch can be offset by tensioning the pair of tie rods In order to improve the stability of the arch bridge structure, the unbalanced horizontal thrust received by the base during the construction process.
[0028] Please combine figure 1 , the abutment include...
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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.
Description
technical field [0001] The present application relates to the technical field of bridge construction, in particular to an arch bridge structure against unbalanced horizontal thrust. Background technique [0002] Arch bridge is a common bridge structure with a long history of development. It is widely used in various bridge projects because of its beautiful line shape, good mechanical performance and excellent spanning ability. Especially in the massive construction of infrastructure such as highways and high-speed railways, more and more arch bridges are favored by engineers and owners as spanning structures, and have been successfully applied to practical projects to achieve better economic and social benefits. [0003] When the existing continuous arch bridge is constructed on the arch ring and the arch structure, the arch foot of the arch ring will generate an unbalanced horizontal thrust on the abutment, and the unbalanced horizontal thrust will affect the stability of t...
Claims
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Login to View More IPC IPC(8): E01D4/00E01D19/00
CPCE01D4/00E01D19/00
Inventor 张凤凰邢志强李鸿文周黎明葛艳丽刘怀刚王焕张鑫王金梁向韬廖盛荣
Owner ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD