Steel bridge light pavement layer structure and paving method

Abstract

The invention provides a steel bridge light pavement layer structure and a paving method and relates to the technical field of steel bridge paving. The fatigue stress of a bridge deck steel structurecan be effectively reduced, the local rigidity of a bridge deck system can be greatly enhanced, and the fatigue life of a steel bridge deck can be prolonged. The steel bridge light pavement layer structure comprises the steel bridge deck, a cement concrete layer, an adhesive layer and a multifunctional thin layer in sequence from bottom to top; the two adjacent layers are connected with each other; a reinforcement mesh is arranged in the cement concrete layer; the reinforcement mesh is fixedly connected with the steel bridge deck through a plurality of short bolt nails; the multifunctional thin layer is an open-graded or cut-off graded asphalt concrete thin layer; and the thickness of the multifunctional thin layer is 10-25 mm. The steel bridge light pavement layer structure provided by the technical scheme of the invention is suitable for steel bridge paving processes of new construction and bridge deck large and medium-sized repairing.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of steel bridge pavement, in particular to a steel bridge light pavement layer structure and a pavement method. [0003] 【Background technique】 [0004] In long-span bridges at home and abroad, steel main girder structures are widely used due to their advantages such as small structural weight, large bearing capacity, and easy construction. Steel girders are usually provided with orthotropic steel decks. A large number of engineering practices have shown that the following two problems of steel bridge decks are very prominent: one is that the mother plate and various welds of orthotropic steel bridge decks are prone to fatigue cracking; the other is that the asphalt surface layer on steel bridge decks is prone to cracks , rutting, congestion and other diseases, the service life of the surface is usually only a few years. For this reason, during the operation stage after the bridge is opened to traf...

AI Technical Summary

Problems solved by technology

[0007] However, the above conventional solutions have some disadvantages that are difficult to overcome:

[0008] 1. It cannot effectively reduce the fatigue stress of the bridge deck steel structure, and the steel structure is prone to fatigue cracking

[0009] 2. The direct paving and pouring asphalt concrete scheme will produce ruts, cracks, and interlayer slippage in a short period of time

[0010] 3. Epoxy asphalt concrete scheme is prone to bulges, pits, irregular cracks and repairing diseases in the later stage

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