A bridge maintenance truss vehicle installation and construction method
A construction method and technology of truss trucks, which are applied to bridges, bridge construction, bridge parts, etc., can solve problems such as low safety, slow efficiency, and unsuitable hoisting heights, and achieve the goals of reducing land occupation time, giving priority to work efficiency, and ensuring safety Effect
Active Publication Date: 2022-03-29
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology
[0003] The purpose of the present invention is to provide a bridge maintenance truss truck installation and construction method, which can solve the problems of slow efficiency and low safety under traditional hoisting conditions, and ensure that the boom of the truck crane cannot be extended under the height limit condition, and the hoisting height cannot be in place
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Embodiment Construction
[0018] Combined with the accompanying drawings and examples, the installation and construction method of the bridge maintenance truss truck of the invention is further elaborated according to the construction steps.
[0019] 1) The maintenance truss truck enters the site and assembles
[0020] After the maintenance truss truck is transported to the site by a flatbed truck, all parts are unloaded to the place to be hoisted and assembled with a 25T truck crane.
[0021] All parts are installed according to the code before leaving the factory to ensure that each interface matches.
[0022] 2) Drive box in place
[0023] Each truss truck has a total of four driving boxes, each weighing 0.4t, and is hoisted to the bridge transition pier platform with a 25t crane. Its height is 4 meters from the installation track. For the corresponding track, the new truss car track uses the original truss car track.
[0024] The drive box is towed to the installation location by an old truss tr...
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The invention relates to a method for installing and constructing bridge maintenance truss trucks, which is characterized in that during the rebuilding process of the maintenance truss trucks, a truck crane is used to hoist the truss trucks as a whole to a position close to the bottom of the girders, and then the pre-installed chain hoists are used to lift the trusses The hoisting force point is gradually transferred from the truck crane to the hand chain hoist, and the hand chain hoist is used to lift it to the installation height, and the pre-installed drive box is connected to the hoisting truss car using the flange, and the truss car installation is completed. The invention can realize the reconstruction project of the bridge maintenance truss car under the height limit condition. The installation and construction method of the maintenance truss car fully embodies the characteristics of scientific utilization, work efficiency priority, safety and reliability. Make full use of the old girder car to install the drive box, safety rope, chain block and operate the personnel entering the new girder truck, which not only solves the problem of climbing, but also solves the passage of personnel entering the new girder truck.
Description
technical field [0001] The invention belongs to the technical field of bridge engineering, in particular to a method for installing and constructing bridge maintenance truss vehicles. Background technique [0002] With the development of cities and the improvement of science and technology, some urban bridge maintenance truss trucks have reached their service life, and their functions and technologies can no longer meet the current bridge maintenance requirements, and they need to be replaced as a whole. In the past when bridges were newly built, most of the maintenance truss trucks were installed with lifting equipment such as hoists. This method can solve the problem that the truck crane cannot be hoisted in place at one time in the height-limited area. However, this process has a long construction period, high requirements for site preparation, and safety risks. Big. Therefore, it is necessary to study a maintenance truss truck installation method that has high construct...
Claims
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IPC IPC(8): E01D21/00E01D19/10
CPCE01D19/106E01D21/00
Inventor 钱寒军唐俊华
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP