Single layer FRP concrete composite bridge slab construction method

A technology of FRP board and construction method, which is applied in the direction of bridges, bridge parts, bridge materials, etc., can solve the problems of increasing the amount of FRP materials, not being able to fully play the role, and using a large amount of FRP materials, so as to achieve the effect of reducing deformation

Inactive Publication Date: 2015-06-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this construction method can speed up the construction speed, it also increases the construction load borne by the FRP formwork alone, increases the amount of FRP materials, and the material strength of the FRP board is difficult to effectively exert
Especially when the span of the bridge deck is large, in order to ensure the rigidity and stability requirements of the FRP slab construction, the amount of FRP material is large, and it often cannot fully play its role.
Thus increasing the overall cost of the FRP-concrete composite bridge deck

Method used

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  • Single layer FRP concrete composite bridge slab construction method
  • Single layer FRP concrete composite bridge slab construction method
  • Single layer FRP concrete composite bridge slab construction method

Examples

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Embodiment

[0027] The single-layer FRP-concrete composite bridge deck of the present embodiment is as figure 1 and figure 2 As shown, it includes an FRP slab 1, on which concrete 5 is poured, and the concrete 5 includes a first layer of concrete 2 and a second layer of concrete 7 poured in sequence, and there is an interface 3 between the first layer of concrete and the second layer of concrete , the interface is pierced with connecting steel bars 4 at intervals.

[0028] Such as image 3 As shown, the FRP board includes an FRP board bottom plate 9 and an FRP board rib 10 , wherein the cross section of the FRP board rib 10 is T-shaped, and epoxy resin glue is coated on its surface.

[0029] Such as Figure 4 As shown, the FRP slab 1 and the concrete 5 poured on it together form a single-layer FRP-concrete composite bridge deck, and the composite slab is erected on a steel beam 8 .

[0030] figure 1 The thickness of the bottom plate of the middle FRP plate is 10mm, the height of the...

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Abstract

The invention discloses a single layer FRP concrete composite bridge slab construction method. The method includes erecting a FRP board, processing the connection boundary of the FRP board and concrete, pouring a first layer of concrete, processing the surface of the first layer of concrete and pouring the second layer of concrete till meeting the designed thickness. The vertical deformation of a bridge slab can be reduced during construction effectively, the stability of the FRP board is improved during construction, the FRP material can be saved, and the cost of the FRP-concrete combined bridge slab is reduced.

Description

technical field [0001] The patent of the invention relates to the technical field of civil engineering, in particular to a construction method of a single-layer FRP-concrete composite bridge deck. Background technique [0002] In recent years, the use of deicing salt has made the durability of traditional reinforced concrete bridge decks more and more prominent. Due to the corrosion resistance and fatigue resistance of FRP materials, in order to improve the durability of bridge decks, composite bridge decks made of FRP slabs and concrete have become a possible choice. The FRP-concrete composite bridge deck can make full use of the advantages of FRP material in terms of durability to improve the durability of the bridge deck. At present, a variety of FRP-concrete composite bridge decks have been developed at home and abroad. The main difference lies in the form and shape of the bottom FRP plate and FRP web. [0003] The FRP-concrete composite bridge deck uses concrete and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01D21/00E01D101/28E01D101/40
Inventor 黄侨佟兆杰张海龙
Owner SOUTHEAST UNIV
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