Paving method of steel box girder bridge deck payment layer

A bridge deck pavement and steel box girder technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of extremely high environmental temperature and humidity conditions, difficult repair of pavement materials, and harsh construction conditions. Achieve the effect of improving bending and tensile stress and fatigue resistance, interface shear resistance, excellent fatigue performance, and reducing self-weight load

Active Publication Date: 2010-03-03
WUHAN MUNICIPAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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  • Paving method of steel box girder bridge deck payment layer
  • Paving method of steel box girder bridge deck payment layer
  • Paving method of steel box girder bridge deck payment layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Such as figure 1 As shown, a method for paving a steel box girder bridge deck pavement includes the following steps:

[0068] 1) Pre-cleaning of bridge deck:

[0069] Clean the steel box girder bridge deck. During the construction process, no vehicles are allowed to pass. Ensure that there is no dirt 15m away from the two ends of the steel box girder to prevent dust from polluting the bridge deck during bridge deck construction;

[0070] 2) Welding shear nails:

[0071] The material and welding quality requirements of shear nails must meet the standard design and requirements of shear nails (also known as cylindrical head welding nails) in the national standard GB10433-2002 and "Technical Specifications for Highway Bridge and Culvert Construction" JTJ041-2000, and the specifications of the shear nails used Is: the diameter of the nail of the shear nail d 1 =10mm, the diameter d of the cylinder of the shear nail 2 =14mm, the height of the nail head of the shear nail H 0 = 3mm (s...

Embodiment 2

[0123] Such as figure 1 As shown, a method for paving a steel box girder bridge deck pavement includes the following steps:

[0124] 1) Pre-cleaning of bridge deck:

[0125] Sweep the steel box girder bridge deck. During the construction process, no vehicles are allowed to pass. Ensure that there is no soil 15m away from the two ends of the steel box girder to prevent dust from polluting the bridge deck during bridge deck construction;

[0126] 2) Welding shear nails:

[0127] The material and welding quality requirements of shear nails must meet the standard design and requirements of shear nails (also called cylindrical head welding nails) in the national standard GB10433-2002 and "Technical Specifications for Highway Bridge and Culvert Construction" JTJ041-2000, and the specifications of the shear nails used Is: the diameter of the nail of the shear nail d 1 =15mm, the diameter d of the cylinder of the shear nail 2 =18mm, the height of the nail head of the shear nail H 0 = 6mm (see...

Embodiment 3

[0179] Such as figure 1 As shown, a method for paving a steel box girder bridge deck pavement includes the following steps:

[0180] 1) Pre-cleaning of bridge deck:

[0181] Sweep the steel box girder bridge deck. During the construction process, no vehicles are allowed to pass. Ensure that there is no soil 15m away from the two ends of the steel box girder to prevent dust from polluting the bridge deck during bridge deck construction;

[0182] 2) Welding shear nails:

[0183] The material and welding quality requirements of shear nails must meet the standard design and requirements of shear nails (also called cylindrical head welding nails) in the national standard GB10433-2002 and "Technical Specifications for Highway Bridge and Culvert Construction" JTJ041-2000, and the specifications of the shear nails used Is: the diameter of the nail of the shear nail d 1 =12mm, the diameter d of the cylinder of the shear nail 2 =16mm, the height of the nail head of the shear nail H 0 = 4mm (see...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01D19/08C04B28/00C04B26/26C08L95/00C08L53/02C08L21/00C04B18/08C04B14/48
CPCY02W30/91
Inventor 丁庆军李潜黄绍龙胡曙光陈凯汪爱兵黄卫强孙晓刚詹秋迎
Owner WUHAN MUNICIPAL CONSTR GROUP
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