Composite reinforced concrete beam containing crack resistant reinforcement layer and method for making same

A reinforced concrete beam and reinforced concrete technology, applied in joists, girders, trusses, etc., can solve the problems of early crack development, limited spanning ability, low stiffness, etc., and achieve the effect of delaying cracks and improving structural performance.

Inactive Publication Date: 2004-08-25
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

[0007] Although ordinary reinforced concrete structures are currently widely used in civil engineering, reinforced concrete structures have their own insurmountable shortcomings: such as poor crack resistance (cracks develop early, develop quickly, and have a large width), low rigidity, and poor durability. Good, limited spanning ability, unable to adapt to the requirements of the development of the structure to a large-span and light-weight structure

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  • Composite reinforced concrete beam containing crack resistant reinforcement layer and method for making same
  • Composite reinforced concrete beam containing crack resistant reinforcement layer and method for making same
  • Composite reinforced concrete beam containing crack resistant reinforcement layer and method for making same

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Embodiment Construction

[0034] The composite reinforced concrete beam containing the anti-crack reinforcement layer and the construction method provided by the present invention are as follows: firstly, the reinforced concrete structure 3 is made, and then the treated bottom surface and the side of the part below the midline of the reinforced concrete structure 3 are the pulling surface, and then one layer is applied. The interface adhesive 2 is bonded to the surface of the interface adhesive 2 to bond the crack-resistant reinforcement layer 1 of composite material.

[0035] The crack-resistant reinforced layer 1 of composite material can be bonded to the interface adhesive 2 layer by layer; or the crack-resistant reinforced layer 1 of composite material can be made first and bonded to the interface adhesive 2 as a whole.

[0036] It is also possible to make the composite material crack-resistant reinforcing layer 1 first, and use it as the outer mold when it is not cured or after it is cured, and the...

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Abstract

The present invention relates to a composite reinforced concrete beam containing crack-resisting reinforcing layer, and it is characterized by that a composite material crack-resisting reinforcing layer can be stuck on the partial or whole tensile area of reinforced concrete beam, and its making method mainly includes the following steps: firstly, making reinforced concrete structure; then brushing a layer of interfacial adhesive glue on the treated undersurface of reinforced concrete structure and its partial side surface below contral line, then sticking composite material crack-resisting reinforcing layer on the surface of the above-mentioned interfacial adhesive glue. Said composite reinforced concrete beam has good crack-resisting property and large structure rigidity.

Description

technical field [0001] The invention relates to reinforced concrete structure technology, which belongs to structural engineering in civil engineering, in particular to a composite reinforced concrete beam with a crack-resistant reinforcement layer that can be used for new construction and reinforcement of concrete structures and a manufacturing method thereof. technical background [0002] At present, in civil engineering, the reinforcement technology of bonding carbon fiber and steel plate to the tensile surface of old reinforced concrete beams already exists. This bonding technology has a good reinforcement effect and has been widely used. However, there is no relevant literature report at home and abroad on the method of making composite reinforced concrete beams by using bonded crack-resistant reinforcement layers to improve structural performance. [0003] Reinforced concrete structure is a kind of building structure composed of two materials with completely different ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/22E04C3/29
Inventor 易志坚杨庆国李祖伟周超彭凯
Owner CHONGQING JIAOTONG UNIVERSITY
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