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Ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck

A concrete surface and concrete technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of restricting popularization and application

Inactive Publication Date: 2013-07-10
黄海林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the interface problem between FRP components and the post-cast concrete surface layer has always restricted the popularization and application of this structure.

Method used

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  • Ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck
  • Ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck
  • Ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] The invention is attached Figure 1-42 shown.

[0027] refer to Figure 1-33 , the ribbed FRP member and concrete composite bridge deck includes a ribbed FRP member 1 and a post-cast concrete surface layer 4. The ribbed FRP member 1 is divided into two parts: the lower FRP bottom plate 2 and the upper FRP longitudinal slab rib 3. The FRP At least one of the bottom plate 2 and the FRP longitudinal rib 3 is in the form of a hollow section, and the FRP longitudinal rib 2 is provided with a transverse through hole 5 .

[0028] Among them, the cross-sectional shape of the FRP longitudinal plate rib 3 can be rectangular or T-shaped, etc. figure 1 The shape of the middle FRP longitudinal plate rib 3 is a rectangle, figure 2 The shape of the middle FRP longitudinal rib 3 is T-shaped. The rectangular FRP longitudinal rib 3 makes the cross-section of the bottom plate an inverted T shape. Effective; the FRP longitudinal slab rib 3 can be used as a shear key, and the existence...

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Abstract

The invention discloses a ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck which comprises a ribbed FRP component and a later-poured concrete surface layer. The ribbed FRP component comprises two parts including an FRP baseplate on the lower portion and longitudinal FRP plate ribs on the FRP baseplate, at least one of the FRP baseplate and the longitudinal FRP plate ribs has a hollow section, and transverse through holes are arranged in the longitudinal FRP plate ribs. The longitudinal FRP plate ribs and the transverse through holes thereon increase contact area of the ribbed FRP component and concrete, improve anti-shearing capacity of a contact face and improve performance of a laminated face; the FRP baseplate or / and the longitudinal FRP plate ribs in hollow-section forms can lower material consumption, increase component stiffness and enable overall performance of the composited bridge deck to be substantially improved. The ribbed FRP component and concrete composite bridge deck is simple in structure, convenient to manufacture and construct, free of additional formworks and supports, and excellent in structural mechanics performance, and can effectively solve many problems of current composite bridge deck structures.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to the combination of a ribbed FRP member and a concrete surface layer used in bridges, especially in long-span pedestrian bridges. Background technique [0002] In the construction of urban pedestrian bridges or expressway pedestrian bridges, pouring concrete in situ is a commonly used construction method, and the construction of full hall supports brings great inconvenience to the normal traffic in the city; at the same time, durability problems such as steel corrosion and concrete cracks more and more people's attention. The bridge deck directly bears the vehicle load and the environment, and is the most direct component affected by overload, corrosion, fatigue and other adverse factors, while the concrete bridge deck is easy to crack, and the steel bridge deck is easy to peel off and corrode, which brings huge hidden dangers and losses to traffic . [00...

Claims

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Application Information

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IPC IPC(8): E01D19/12
Inventor 黄海林吴方伯曾垂军周绪红
Owner 黄海林
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