Unlock instant, AI-driven research and patent intelligence for your innovation.

A pavement method for steel box girder bridge deck pavement

A bridge deck paving and steel box girder technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as extremely high environmental temperature and humidity conditions, difficult repair of pavement materials, and inability to half-width bridge decks. Achieve the effect of improving flexural tensile stress and fatigue resistance, as well as interface shear resistance, excellent fatigue performance, and improving bridge bearing capacity

Active Publication Date: 2011-12-14
WUHAN MUNICIPAL CONSTR GROUP
View PDF0 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A pavement method for steel box girder bridge deck pavement
  • A pavement method for steel box girder bridge deck pavement
  • A pavement method for steel box girder bridge deck pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Such as figure 1 Shown, a kind of pavement method of steel box girder bridge deck pavement, it comprises the steps:

[0068] 1) Bridge deck pre-cleaning:

[0069] Clean the steel box girder bridge deck, prohibit any vehicles from passing during the construction process, and ensure that there is no soil beyond 15m at both ends of the steel box girder, so as not to pollute the bridge deck during bridge deck construction by dust;

[0070] 2) Welding shear studs:

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

Embodiment 2

[0123] Such as figure 1 Shown, a kind of pavement method of steel box girder bridge deck pavement, it comprises the steps:

[0124] 1) Bridge deck pre-cleaning:

[0125] Clean the steel box girder bridge deck, prohibit any vehicles from passing during the construction process, and ensure that there is no soil beyond 15m at both ends of the steel box girder, so as not to pollute the bridge deck during bridge deck construction by dust;

[0126] 2) Welding shear studs:

[0127] The material and welding quality requirements of shear nails must meet the national standard GB10433-2002 and the "Technical Specifications for Highway Bridge and Culvert Construction" JTJ041-2000 on the standard design and requirements of shear nails (also known as cylindrical head welding nails). The specifications of the shear nails used is: the diameter d of the nail cap of the shear nail 1 = 15mm, the diameter of the shaft of the shear stud d 2 =18mm, the height H of the nail head of the shear nai...

Embodiment 3

[0179] Such as figure 1 Shown, a kind of pavement method of steel box girder bridge deck pavement, it comprises the steps:

[0180] 1) Bridge deck pre-cleaning:

[0181] Clean the steel box girder bridge deck, prohibit any vehicles from passing during the construction process, and ensure that there is no soil beyond 15m at both ends of the steel box girder, so as not to pollute the bridge deck during bridge deck construction by dust;

[0182] 2) Welding shear studs:

[0183] The material and welding quality requirements of shear nails must meet the national standard GB10433-2002 and the "Technical Specifications for Highway Bridge and Culvert Construction" JTJ041-2000 on the standard design and requirements of shear nails (also known as cylindrical head welding nails). The specifications of the shear nails used is: the diameter d of the nail cap of the shear nail 1 = 12mm, the diameter of the shaft of the shear stud d 2 =16mm, the height H of the nail head of the shear nai...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of building materials, and in particular relates to a paving method for a pavement layer in front of a steel box girder. A pavement method for a steel box girder bridge deck pavement, characterized in that it comprises the following steps: 1) bridge deck pre-cleaning; 2) welding shear nails; 3) bonza steel mesh; 4) high toughness, high strength and light weight Pavement of aggregate concrete layer: Pave high-toughness, high-strength, lightweight aggregate concrete on the steel plate of the steel box girder deck. The thickness of the aggregate concrete is 5-8cm, forming a high-toughness, high-strength, lightweight aggregate concrete layer; 5) Pavement of the waterproof bonded stress-absorbing layer, the thickness of the waterproof bonded stress-absorbing layer is 1-2cm; 6) Anti-skid, reducing Pavement of noise and drainage pavement layer: the anti-slip, noise reduction and drainage pavement layer is prepared, and the thickness of the anti-slip, noise reduction and drainage pavement layer is about 3 to 5 cm. The paving layer obtained by the method of the invention has the characteristics of stress absorption, light weight and excellent skid resistance.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a paving method for a pavement layer in front of a steel box girder. Background technique [0002] The steel box girder deck has the advantages of light weight, large spanning capacity, simple construction, and significant 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 the durability of the bridge, ensuring the safety and comfort of driving, as well as economic and social benefits. The data show that while more and more steel box girder bridges are being successfully constructed around the world, reports of damage to the steel box girder deck pavement system within the service life are not uncommon. The problem of steel box girder deck pavement has become a constraint K...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00E01D19/12E01D19/08C04B28/00C04B26/26C08L53/02C08L21/00C04B18/08C04B14/48
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