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High-ductility FRP-concrete beam and production process

A concrete beam, high ductility technology, applied in the direction of bridges, joists, girders, etc., can solve the problems of insufficient durability and poor ductility of steel bars, achieve good ductility, and expand the application range

Inactive Publication Date: 2016-12-14
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to propose a high-ductility FRP-concrete beam and its production process, aiming to solve the problems of insufficient durability of steel bars and poor ductility of ordinary FRP bars in traditional reinforced concrete structures, so as to expand the use of FRP bars in concrete beams The range of application in the structure

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  • High-ductility FRP-concrete beam and production process
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  • High-ductility FRP-concrete beam and production process

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses ahigh-ductility FRP-concrete beam anda production process. The outer side of the high-ductility FRP-concrete beam is provided with outer FRP pipes, a plurality of inner FRP pipes are arranged in a stressed zone inside the high-ductility FRP-concrete beam, and the stressed zone is provided with a plurality of FRP ribs. The inner FRP pipes are filled with core concrete, and main concrete is filled among the inner FRP pipes, the FRP ribs and the outer FRP pipes. The outer FRP pipes ensures structural integrity and bear a part of shear effect. The inner FRP pipes constrain the core concrete, so that obvious ductility is shown under the pressure effect of the high-ductility FRP-concrete beam, and the high-ductility FRP-concrete beam has the obvious ductility compared with a concrete beam in the prior art. The high-ductility FRP-concrete beam has good ductility, ultimate bearing capacity and corrosion resistance and can promote the application of FRP materials in civil engineering.

Description

technical field [0001] The invention relates to structural fields such as bridges and buildings, in particular to a high ductility FRP-concrete beam and a production process. Background technique [0002] Reinforced concrete beams and steel beam structures are widely used in the field of engineering technology because of their strong bearing capacity, high rigidity, and good overall performance. Reinforced concrete beams or steel beam structures are used in outdoor, coastal or humid environments. Steel is susceptible to corrosion, which can lead to performance degradation and even scrapping of reinforced concrete or steel beam structures. Therefore, reinforced concrete or steel structures are not ideal structural forms in highly corrosive environments such as oceans. [0003] Fiber-reinforced composites (FRP) have been widely used in the maintenance and reinforcement of existing concrete structures because of their high strength, light weight, good corrosion resistance, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/29E01D19/00E01D101/26E01D101/40
CPCE04C3/29E01D19/00E01D2101/26E01D2101/40
Inventor 方舒李丽娟付兵刘锋涂强
Owner GUANGDONG UNIV OF TECH