Slightly-arched seam crossing type bridge continuous seam structure

Abstract

The invention relates to a slightly-arched seam crossing type bridge continuous seam structure. The slightly-arched seam crossing type bridge continuous seam structure comprises beams, supports and a pavement layer. The slightly-arched seam crossing type bridge continuous seam structure is characterized in that the upper surfaces of the beams on two sides are respectively provided with a pre-embedded steel plate, the centerline of each pre-embedded steel plate and the centerline of the support below each pre-embedded steel plate are located in the same vertical plane, a slightly-arched seam crossing steel plate is arranged, the contact surfaces of the two ends of the slightly-arched seam crossing steel plate are welded to the pre-embedded steel plates of the beams of the two sides, the middle of the slightly-arched seam crossing steel plate is slightly arched, and the two ends of each reinforcing rib in the pavement layer are arranged in a gradual density-reduction mode; the two ends of each reinforcing rib in the pavement layer are arranged in the gradual density-reduction mode, so that some of the reinforcing ribs are long and some of the reinforcing ribs are short. The slightly-arched seam crossing type bridge continuous seam structure has the advantages that by additionally installing the slightly-arched seam crossing steel plate, a pavement structure on a continuous seam is completely separated from the beams; because the arched structure has relatively strong anti-pressure ability, the seam does not have great influence even if the seam is large, and the structural problem that the continuous seam is damaged is solved.

Description

technical field [0001] The invention relates to a continuous seam structure of a micro-bow seam-spanning bridge. Background technique [0002] At present, in the construction of express lanes in cities, in order to save land resources, the form of viaducts is generally adopted. Of course, there are also many places where the original plan has been determined, so viaducts can only be used. Since it is a long-distance viaduct, telescopic bridges will inevitably be installed. When the vehicle is running at high speed, every time the vehicle passes through an expansion joint, vibration and sound will be generated, causing the surrounding noise to increase greatly, and the drivers and passengers of the vehicle will also feel uncomfortable. In order to improve the driving comfort, the setting of expansion joints is generally reduced as much as possible on the multi-span elevated roads, and most of the expansion joints are made into continuous joint structures, that is, the asphalt...

AI Technical Summary

Problems solved by technology

The third is that there is no gradual densification change in the ribs, so that the stress release is concentrated at the end of the ribs

In addition, there is another very important factor in this design that has not been fully considered, that is, when the bridge is under load, the bridge at the continuous joint will produce a negative bending moment due to the force, and since the rubber plate has no supporting function, there is no space for it to deform , making it extremely vulnerable to damage

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