Composite material bridge surface ancillary facility of rail way prestress concrete box girder

A concrete box and composite material technology, applied in bridge construction, bridges, bridge parts, etc., can solve the problems of construction personnel and on-site material safety hazards, increase the cost of machinery and equipment, and require high construction equipment, so as to achieve the cost of construction equipment and labor costs The effect of low cost, light weight and low labor intensity

Inactive Publication Date: 2017-05-10
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +5
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality of the existing railway prestressed concrete box girder prefabricated auxiliary facilities is too large, and the requirements for construction equipment during the construction process are relatively high. Lifting equipment is required for on-site installation, thereby increasing the cost of machinery and equipment. Personnel and site materials pose a safety hazard

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  • Composite material bridge surface ancillary facility of rail way prestress concrete box girder
  • Composite material bridge surface ancillary facility of rail way prestress concrete box girder
  • Composite material bridge surface ancillary facility of rail way prestress concrete box girder

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] Such as figure 1 Shown, a kind of railway prestressed concrete box girder composite material bridge deck auxiliary facility, the upper surface of box girder 9 both sides is all equipped with cable trough 3, the top of described cable trough 3 is equipped with walking plate 4, described The walking board 4 is also used as a cover plate for the cable duct, and the outer side of the cable duct 3 is a shutter 10 . Such as Figure 6 As shown, the cable trough 3 is integrally formed with the shutter 10 , and the bottom surface of the cable trough 3 matches the surface of the box beam 9 . Railin...

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Abstract

The invention relates to a composite material bridge surface ancillary facility of a rail way prestress concrete box girder. Cable troughs are formed in the upper surfaces of the two sides of the box girder, walking plates are installed at the tops of the cable troughs, and curtain plates are installed on the outer side of the cable troughs; and handrails or sound barriers are installed on the edges of the two sides of the box girder. Main components of the composite material bridge surface ancillary facility are made of fibre reinforcing composite materials, the materials are light in mass and high in intensity, the secondary permanent load of a bridge girder is little, the geometry size of the bridge girder can be reduced, and distributed bars and prestress bars of the bridge girder are reduced, so that the total weight of the bridge girder is reduced.

Description

technical field [0001] The invention relates to an auxiliary facility of a railway prestressed concrete box girder composite material bridge deck. Background technique [0002] Railway prestressed concrete box girder gradually replaces T-beam in railway construction and becomes the most widely used beam type in railway bridge construction. The box girder is a kind of middle girder in bridge engineering, the inside is hollow, and there are flanges on both sides of the upper part, similar to a box. The auxiliary facilities of the bridge deck are the auxiliary structures outside the protective wall of the main structure of the bridge. They are indispensable and play an important auxiliary function. The auxiliary facilities mainly include shutters, cable ducts, vertical walls, and cable duct covers (also used as walking boards) , railings, sound barriers, etc. [0003] Among them, the shroud is a prefabricated reinforced concrete structure, the vertical wall is a cast-in-situ ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D19/10E01F8/00
CPCE01D19/00E01D19/103E01F8/0017
Inventor 牛斌曾志斌陈忠海李再轲张松崎赵沭通沙磊张勇范霆张跃进卢瑞林朱波曾挚刘志陈才洋
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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