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Fiber reinforce plastic (FRP) ribbing folded plate-concrete combined bridge deck

A technology of concrete and composite bridges, which is applied in bridge engineering, fiber reinforced plastics in bridges, and concrete combined applications, can solve problems such as low stiffness, large initial investment of full FRP bridge decks, and difficulty in connecting main girders, and achieve improved Bending stiffness and strength, increased stiffness and strength, and the effect of avoiding erosion

Inactive Publication Date: 2010-06-16
TONGJI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

According to the material composition, the FRP bridge deck can be divided into full FRP bridge deck and FRP-concrete composite bridge deck. However, the price of FRP materials is higher than that of steel and concrete. The full FRP bridge deck has disadvantages such as large initial investment, low stiffness, and difficulty in connecting with the main girder. , has not been widely used

Method used

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  • Fiber reinforce plastic (FRP) ribbing folded plate-concrete combined bridge deck
  • Fiber reinforce plastic (FRP) ribbing folded plate-concrete combined bridge deck
  • Fiber reinforce plastic (FRP) ribbing folded plate-concrete combined bridge deck

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0025] Such as Figure 1-Figure 2 As shown, the FRP ribbed folded plate-concrete composite bridge deck of the present invention mainly includes an FRP folded base plate 1 with ribs, and a single FRP folded base plate 1 can form a large FRP folded base plate through bolts or adhesives. T-shaped bottom plate, the rib plate 11 of the FRP folded bottom plate 1 is provided with a flange to form a T-shaped rib, and there are evenly arranged round holes 12 on it, and steel bars or FRP bars 2 run through the round holes 12. The top surface is evenly distributed with steel bars or FRP bars 3 in the same direction as the bars penetrating through the round hole 12. At the same time, the main steel bars or FRP bars 4 perpendicular to it are laid on the top surface of the steel bars or FRP bars 3, and then concrete 5 Pouring molding. Among them, the diame...

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Abstract

The invention relates to a fibre reinforce plastic (FRP) ribbing folded plate-concrete combined bridge deck and belongs to the filed of bridges. An FRP folded bottom plate with ribbed plates is comprised; the ribbed plates are arranged at the concave part of the folded bottom plate and provided with round holes; a large-area structure of the folded bottom plate can be achieved by connecting the ribbed plates together; reinforced ribs are arranged in and pass through the round holes of the ribbed plates; meanwhile, reinforced ribs parallel to the reinforced ribs in the round holes are arranged on the top surface of the folded bottom plate and main reinforced ribs vertical to the reinforced ribs in the round holes are paved above the reinforced ribs on the top surface; and finally the structure of the bridge deck can be formed by concrete casting. The invention has the advantages of simple structure, convenient construction, good simplicity and reliability and high load-carrying property.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to the application of fiber reinforced plastics in bridges, especially the application of fiber reinforced plastics in combination with concrete. Background technique [0002] In the process of erecting urban viaducts, in-situ pouring of concrete is a commonly used construction method, and the construction of full-scale support brings great inconvenience to the normal traffic in the city; meanwhile, durability issues such as steel corrosion and concrete cracks have attracted more and more 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 traditional concrete bridge deck and steel bridge deck are prone to cracking, peeling and corrosion, which brings huge hidden dangers to traffic and loss. [0003] Fiber-reinforced plast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12
Inventor 刘玉擎代亮
Owner TONGJI UNIV
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