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FRP-UHPC combined T-beam

A beam body, ultra-high performance technology, applied in the direction of joists, girders, truss beams, etc., can solve the problems of reducing the durability of the structure, prone to cracks, corrosion of steel bars, etc., to ensure durability, improve compressive strength, and structure simple effect

Inactive Publication Date: 2019-08-27
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional reinforced concrete structures, engineering accidents caused by cracks often occur. The concrete has low tensile strength and is prone to cracks. Once cracked, the crack width increases rapidly, which accelerates the penetration of harmful substances into the concrete, and eventually leads to the failure of steel bars. Corrosion, which promotes the deterioration of the structure and reduces the durability of the structure

Method used

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  • FRP-UHPC combined T-beam

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Embodiment Construction

[0010] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0011] Such as figure 1 As shown, a FRP-UHPC composite T-beam includes a "T"-shaped beam body 2, the beam body is made of ultra-high performance concrete pouring, and the inside of the beam body is provided with FRP bars; the FRP bars include The FRP round pipe 3 is poured with ultra-high performance concrete inside the FRP round pipe to form FRP bars, which improves the ductility of the beam, increases the bearing capacity of the beam, and is beneficial to the seismic design in the earthquake zone.

[0012] In the embodiment of the present invention, there are several FRP tendons and they are located below the middle of the beam body.

[0013] In the embodiment of the present invention, the outer surface of the beam body is pasted with FRP cloth 1, and the FR...

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Abstract

The invention relates to an FRP-UHPC combined T-beam. The FRP-UHPC combined T-beam comprises a T-shaped beam body. The beam body is formed by pouring ultra-high performance concrete, and FRP ribs arearranged in the beam body. The FRP ribs comprise FRP round tubes, and the FRP round tubes are internally filled with ultra-high performance concrete to form the FRP ribs. The FRP-UHPC combined T-beamis simple in structure.

Description

technical field [0001] The invention relates to an FRP-UHPC combined T-beam. Background technique [0002] In traditional reinforced concrete structures, engineering accidents caused by cracks often occur. The concrete has low tensile strength and is prone to cracks. Once cracked, the crack width increases rapidly, which accelerates the penetration of harmful substances into the concrete, and eventually leads to the failure of steel bars. Corrosion promotes the deterioration of the structure and reduces the durability of the structure. Contents of the invention [0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a FRP-UHPC composite T-beam with a simple structure. [0004] In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a FRP-UHPC composite T-beam, including a "T"-shaped beam body, the beam body is made of ultra-high performance concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/20
CPCE04C3/20
Inventor 陈誉杨航冯刚
Owner FUZHOU UNIV