A self-expanding maintenance device and system suitable for steel truss bridges
A technology for steel truss girder bridges and maintenance devices, which is applied in the directions of bridges, bridge construction, bridge parts, etc., can solve problems such as hidden dangers of driving traffic safety, and achieve the effect of ensuring relative movement.
Active Publication Date: 2022-02-15
CHINA MAJOR BRIDGE ENERGINEERING
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Problems solved by technology
[0005] The embodiment of the present application provides a self-expanding maintenance device and system suitable for steel truss girder bridges, so as to solve the problems in the related art that there are inspection blind spots in the area of the expansion joints and that the expansion joint device brings great safety hazards to traffic
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[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0037] The embodiment of the present application provides a self-expanding maintenance device suitable for steel truss girder bridges, which can solve the problems in the related art that there are inspection blind spots in the expansion joint area and that the expansion joint device brings great safety hazards to traffic.
[0038] see ...
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The present application relates to a self-expanding maintenance device and system suitable for a steel truss girder bridge, and relates to the technical field of bridge construction. One side of the first maintenance platform of the self-retractable maintenance device is connected to the supporting vertical rod under one of the beams, and the other side is provided with at least two first accommodating grooves arranged at intervals, and the first accommodating grooves are located in the first When the maintenance platform moves, it accommodates the supporting vertical rod under the beam body on the opposite side, the second maintenance platform is arranged below the first maintenance platform, and one side is connected with the supporting vertical rod under the other beam body, and the other side is provided with four supporting vertical rods. There are two spaced second accommodating grooves, the second maintenance platform and the first maintenance platform at least partially overlap when the expansion joint device is extended, and accommodate the supporting vertical rod under the opposite side beam body when the second maintenance platform moves. The self-expansion maintenance device and system provided by the present application solve the problems in the related art that there are inspection blind spots in the expansion joint area and that the expansion joint device brings greater safety hazards to traffic.
Description
technical field [0001] The application relates to the technical field of bridge construction, in particular to a self-expanding maintenance device and system suitable for steel truss bridges. Background technique [0002] At present, in order to maximize the traffic function of the main girder, the long-span steel truss bridge can be designed as a double-layer steel truss structure, which can pass the road on the upper deck and the railway on the lower deck. All roads are accessible. Generally, in order to ensure that the bridge span structure can deform freely under the influence of temperature changes, live loads, concrete shrinkage and creep, etc., a bridge is usually installed between the two main girder ends, between the girder end and the abutment, or at the hinge position of the bridge. Structural joints, expansion joint devices are installed in the structural joints, and large displacement expansion joint devices are arranged at the beam ends of the upper road deck ...
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IPC IPC(8): E01D19/10
CPCE01D19/106
Inventor 张建强肖海珠赵茜茜别业山李松林戴慧敏
Owner CHINA MAJOR BRIDGE ENERGINEERING