Inspecting apparatus and inspecting method for truss bridge

Abstract

The invention provides an inspecting apparatus for a truss bridge. The inspecting apparatus for the truss bridge comprises an inspecting vehicle, a running mechanism, a rotating suspension arm and a node-crossing piece, wherein the inspecting vehicle comprises a horizontal truss and a vertical truss which is used for an inspecting personnel to inspect a passage in the side surface of the bridge; the running mechanism is used for driving the inspecting vehicle to move in a longitudinal direction; the horizontal truss is fixedly placed on the running mechanism; the rotating suspension arm is arranged on the side surface of the horizontal truss; the rotating suspension arm is in the vertical direction when being in a non-working state; the rotating suspension arm is in the horizontal direction when being in a working state; and the node-crossing piece is arranged at a node of the truss bridge and used for the inspecting vehicle to pass through the node, wherein the node-crossing piece canbe taken off or placed when the rotating suspension arm is in the working state. The invention further provides an inspecting method for the truss bridge; and by using the inspecting device, the truss bridge is inspected.

Description

technical field [0001] The invention relates to a bridge inspection device, in particular to an inspection device for truss bridges. The invention also relates to an inspection method for a truss bridge. Background technique [0002] At present, steel truss bridges are widely used in bridge construction. During the application process of steel truss bridges, regular inspection and maintenance are required. Since the steel truss girder is mainly composed of rods, the connections between the rods are mostly connected by gusset plates and bolts. In the inspection and maintenance process, in order to span the gusset plate, the prior art adopts the method of raising the track foundation with pedestals at intervals in the direction of the longitudinal bridge on the top chord top of the steel truss girder, and then placing the track on the pedestals. Or use the longitudinal bridge to weld the connecting pieces on the top of the steel truss girder at intervals, and then set a sho...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some problems with the above way of setting the track for steel truss bridges

For example, tracks, pedestals and their fixings need to be laid on top of the full bridge, which leads to long construction period and high cost

In addition, although the method of only welding the connectors does not require the laying of tracks for the whole bridge, the walking process is cumbersome and the speed is slow. Because of its few fixed points, as long as there is a problem with one fulcrum during the movement, it may lead to catastrophic consequences. Its stability is poor , poor safety performance, and low inspection and maintenance efficiency

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