Paving method of steel box girder bridge deck payment layer

Abstract

The invention belongs to the field of building materials, in particular to a paying method of a steel box girder bridge deck payment layer. The paying method of the steel box girder bridge deck payment layer is characterized by comprising the following steps: (1) bridge deck pre-cleaning; (2) welding of shearing rivets; (3) binding of reinforcing mats; (4) payment of a high-toughness high-strengthlight aggregation concrete layer: paying high-toughness high-strength light aggregation concrete on steel plates of a steel box girder bridge deck and forming the high-toughness high-strength light aggregation concrete layer, wherein the high-toughness high-strength light aggregation concrete is higher than the shearing rivets by 1-2 cm and the thickness of the high-toughness high-strength lightaggregation concrete is 5-8 cm; (5) payment of a waterproof bonding stress absorbing layer, wherein the thickness of the waterproof bonding stress absorbing layer is 1-2 cm; and (6) payment of a payment layer for resisting slipping, reducing noise and draining: preparing the payment layer for resisting slipping, reducing noise and draining, wherein the thickness of the pavement layer is 3-5 cm. The payment layer has the characteristics of stress absorption, lightness and excellent slipping resistance.

Description

Technical field [0001] The invention belongs to the field of building materials, and in particular relates to a method for paving the front paving layer of a steel box beam. Background technique [0002] Steel box girder bridge deck has the advantages of light weight, large spanning capacity, simple construction, and remarkable economy. It is especially suitable for long-span bridges and has been widely used at home and abroad. Among them, the bridge deck pavement is an important part of the steel box girder bridge driving system. It plays an extremely important role in ensuring the durability of the bridge, ensuring driving safety, comfort, and economic and social benefits. The data shows that while more and more steel box girder bridges have been successfully constructed all over the world, reports of damage to the steel box girder deck paving system within the service life are also common. The problem of steel box girder deck paving has become a constraint on steel. A key fac...

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Problems solved by technology

(2) Epoxy asphalt mixture, the application effect of this material is better, but the materials and paving equipment are completely dependent on imports, and the paving cost is as high as 1,500 yuan / m 2 ; The construction conditions are harsh, and the requirements for environmental temperature and humidity are extremely high; once the pavement material is damaged, it will be difficult to repair. Due to the wide construction work surface, half the bridge deck cannot be opened to traffic for maintenance, and the maintenance period is as long as 45 days or more

Due to the above reasons, its application is also subject to certain restrictions.

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