Triangular structure system for steel arch bridge swivel construction and mounting method thereof
A technology for triangular and steel arch bridges, applied in arch bridges, bridge forms, bridges, etc., can solve problems such as increasing construction costs and prolonging construction periods, and achieve the effects of reducing construction costs, shortening construction periods, and reducing construction risks.
Pending Publication Date: 2020-11-20
TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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Problems solved by technology
[0003] However, as the size and height of steel arches become larger and higher, the tripod system used for construction assistance also increases and heightens. Therefore, the installation and removal of the tripod itself has become a difficult problem in the construction of steel arch bridges. Currently, only The installation and removal of the large-scale tripod system is completed with the help of large-scale hoisting equipment, which belongs to high-altitude operations, which not only increases the construction cost and prolongs the construction period, but also has certain construction risks
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[0034] Such as figure 1 As shown, a triangular structure system for steel arch bridge swivel construction includes mutually hinged compression rod 3 and tie rod 4. A core-piercing oil cylinder 16 is installed on the cable 5, and the other end of the compression rod 3 is hinged to one end of the steel arch 1, and the other end of the steel arch 1 is hinged to the end of the pull rod 4 that is not hinged to the compression rod 3.
[0035] Specifically, a first rib hinge 10 and a second rib hinge 11 are respectively provided at both ends of the steel arch 1 , and the first rib hinge 10 and the second rib hinge 11 are welded to both ends of the steel arch 1 respectively. The first arch rib hinge 10 is hinged with the pressure rod 3, and the second arch rib hinge 11 is hinged with the pull rod 4, as figure 2 As shown, one end of the compression bar 3 is provided with a first compression bar hinge 9, the first compression bar hinge 9 is connected with the first arch rib hinge 10, ...
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The invention relates to a triangular structure system for steel arch bridge swivel construction and a mounting method thereof. The triangular structure system comprises a pressing rod and a pull rodwhich are hinged to each other, one end of the pressing rod is further connected to the bridge floor beam through a rear inhaul cable, the other end of the pressing rod is hinged to one end of a steelarch, and the other end of the steel arch is hinged to the end, not hinged to the pressing rod, of the pull rod. When the triangular structure system is installed, a core penetrating oil cylinder installed on a rear inhaul cable and a door-shaped support which is used for containing a pull rod and can move in a lifting mode are utilized. The core penetrating oil cylinder contracts to pull the rear inhaul cable, so that the pressing rod rotates upwards, the pull rod is lifted, and the door-shaped support is moved and lifted along with the pressing rod; and when the door-shaped support is movedto the position, corresponding to the pull rod, of the steel arch, the pull rod is moved out of the door-shaped support and then hinged to the steel arch. Compared with the prior art, when the largetripod system is installed, large hoisting equipment is not needed any more, high-altitude operation is converted into ground operation, the construction risk can be reduced, the construction period can be shortened, and the construction cost can be reduced.
Description
technical field [0001] The invention relates to the technical field of steel arch bridge construction, in particular to a triangular structure system for steel arch bridge swivel construction and an installation method thereof. Background technique [0002] In recent years, the steel arch construction of steel arch bridges often adopts the overall vertical rotation method, among which the tripod construction method is more common. The use of full house scaffolding. [0003] However, as the size and height of steel arches become larger and higher, the tripod system used for construction assistance also increases and heightens. Therefore, the installation and removal of the tripod itself has become a difficult problem in the construction of steel arch bridges. Currently, only The installation and removal of the large-scale tripod system with the help of large-scale hoisting equipment is a high-altitude operation, which not only increases the construction cost and prolongs the...
Claims
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IPC IPC(8): E01D21/08E01D4/00
CPCE01D21/08E01D4/00
Inventor 吴水根吕兆华高维强张旭
Owner TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD