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Flanged groove type FRP (Fiber Reinforce Plastic) plate-concrete combination bridge deck

A FRP board and concrete technology, applied in bridges, bridge parts, bridge materials, etc., can solve the problems of longitudinal torsion and other problems, achieve the effect of improving stiffness and stability, eliminating local stability problems, and speeding up construction speed

Inactive Publication Date: 2015-05-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a grooved FRP plate with flanges-concrete composite bridge deck. The pultruded grooved FRP plate is used as a permanent formwork during construction. After the bridge is completed, The composite bridge deck composed of grooved FRP slab and concrete bears the load together, which solves the problem of longitudinal torsion resistance of the existing FRP-concrete composite bridge deck

Method used

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  • Flanged groove type FRP (Fiber Reinforce Plastic) plate-concrete combination bridge deck
  • Flanged groove type FRP (Fiber Reinforce Plastic) plate-concrete combination bridge deck
  • Flanged groove type FRP (Fiber Reinforce Plastic) plate-concrete combination bridge deck

Examples

Experimental program
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Embodiment

[0037] During the construction process, the FRP baffle 10 is connected with the single-piece grooved FRP board 2 with flanges to become the FRP board template under construction. The penetrating ribs 5 tightly connect several single-piece grooved FRP panels 2 into one body, and play a fastening role; the longitudinal bridge top ribs 4 and the penetrating ribs 5 on the top of the FRP panels jointly bear the bending load in the longitudinal bridge direction.

[0038] The traditional channel-type FRP plate improves the rigidity of the formwork by increasing the height of the rib plate, but the higher rib plate reduces the stability of the formwork during construction; the present invention adopts a single-piece channel-type FRP plate with flange 2 , to improve the stability of the formwork through the constraints of the flange on the ribs. The height of the inverted L-shaped rib 6 and the width of the flange are determined according to the span of the composite slab and the const...

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Abstract

The invention discloses a flanged groove type FRP (Fiber Reinforce Plastic) plate-concrete combination bridge deck. The flanged groove type FRP plate-concrete combination bridge deck comprises an FRP plate and concrete, wherein the FRP plate comprises a plurality of single groove type FRP plates; every two single groove type FRP plates are connected end to end in an alignment attachment mode of groove shape side rib plates and are spliced into the FRP plate; the concrete is poured onto the FRP plate and covers the FRP plate. The flanged groove type FRP plate-concrete combination bridge deck is simple in structure and convenient to construct, and various stress and configuration requirements on longitudinal and horizontal bridge directions can be better met.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a grooved FRP plate-concrete composite bridge deck with flanges. Background technique [0002] Reinforced concrete uses the corrosion resistance of concrete to protect the steel bars wrapped in concrete. But with engineering practice, people gradually realized that due to the cracking of concrete, the durability of reinforced concrete is not as good as expected. In recent years, with the use of urban deicing salt, the durability of traditional reinforced concrete bridge decks has become more and more prominent. [0003] Fiber materials are characterized by light weight and corrosion resistance, and the FRP-concrete composite bridge deck made of fiber materials has become a possible choice to deal with the above problems. The FRP-concrete composite bridge deck is generally a bottom FRP slab, and concrete is poured on it. [0004] At present, the FRP-concrete composite bridge de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12
CPCE01D19/125E01D2101/264E01D2101/268
Inventor 黄侨佟兆杰
Owner SOUTHEAST UNIV
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