Hinge for installing bridge cable tower and method for installing hinge

An installation method and installation technology, applied to bridges, bridge parts, bridge construction, etc., can solve the problems of difficult control of welding quality, difficult construction, time-consuming and laborious, etc., and achieve high installation accuracy, time-saving and labor-saving installation. Safe and reliable results

CN102535352AInactive Publication Date: 2012-07-04JINHUAN CONSTR GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hinge for installing a bridge cable tower and a method for installing the hinge. The hinge comprises a lower hinge seat, a hinge shaft and an upper hinge seat, wherein the upper hinge seat is connected with the lower hinge seat through the hinge shaft and can freely rotate relative to the lower hinge seat. The method comprises the following steps of: fixing the lower hinge seat; connecting the upper hinge seat and the lower hinge seat through a dummy shaft, and welding a cable tower ground first-section box body; and replacing the dummy shaft with the hinge shaft. The cable tower hinge is used for the whole vertical rotation of the cable tower, the lower hinge seat of the hinge is fixed on a lower hinge seat anchor plate, and the lower hinge seat anchor plate is welded and fixed with a steel tower basic section embedded into a concrete tower foundation; and the hinge shaft is manufactured by processing 40Cr steel and hardening and tempering, and lug plates of the upper hinge seat and the lower hinge seat are made of Q345B steel plates and are subjected to non-destructive flaw detection after being manufactured, so that the hinge shaft is safely stressed and reliably used in the whole vertical rotation process of the cable tower, guarantee is provided for the whole vertical rotation of the cable tower, the cable tower is installed in a time-saving and labor-saving mode, and installation accuracy is high.
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Description

technical field

[0001] The invention relates to a device for overall vertical rotation of a cable tower for a bridge and an installation method thereof, in particular to a heavy hinge for installing a bridge cable tower and an installation method thereof. Background technique

[0002] At present, in bridge engineering, cable-stayed bridges or suspension bridges are mostly used for long-span bridges, and for the sake of beauty, the construction and installation angles of the cable towers are also various, which puts forward requirements for the installation and erection of the cable towers, and most of them use erection bridges. The hoisting method of full-height brackets or back ropes piece by piece is time-consuming and labor-intensive, requiring super-large lifting machinery. At the same time, it increases the risk of workers working at heights, and it is difficult to control the overall welding quality and assembly accuracy, especially in When the cable tower has a certai...

Examples

Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be described in further detail: as figure 1 and 2 As shown, the heavy-duty hinge for bridge tower installation of the present invention comprises a lower hinge base 2, a hinge shaft 3, an upper hinge base 4 and a lower hinge base anchor plate 1, the lower hinge base is fixed on the lower hinge base anchor plate, and the upper hinge base and the lower hinge base are fixed on the lower hinge base anchor plate. The lower hinge seat is connected by a hinge shaft, the upper hinge seat can rotate freely relative to the lower hinge seat, and the upper hinge seat is connected to the first section of the cable tower. Among them, the diameter of the pin shaft is Φ400mm, and it is made of 40Cr steel after quenching and tempering treatment. The material of ear plate 5 and 6 is made of Q345B steel plate with a thickness of 90mm. The upper hinge seat structure reference Figure 5 and Image 6 , the structur...