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CFRP/GFRP Interlayer Hybrid Fiber Cloth Reinforced Concrete Beam Subjected to Bending Property Experimental Research

Author: ChengJianPeng
Tutor: WuHuiQin
School: Guangxi University of Technology
Course: Structural Engineering
Keywords: CFRP / GFRP layer hybrid fiber cloth Reinforcement Reinforced concrete beams Bending Properties
CLC: TU375.1
Type: Master's thesis
Year: 2011
Downloads: 42
Quote: 0
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Abstract


Fiber reinforced composites (FRP) reinforcement of reinforced concrete structures is a more convenient method . And because this material has a corrosion-resistant construction is simple and quick , almost does not change the size and characteristics of the original structure , structural reinforcement at home and abroad in recent years has been the gradual application , with good economic returns . Single fiber composites reinforced concrete structure reinforcement efficiency is relatively low , and now with carbon fiber material has a lot of deficiencies , in order to ensure the building components should be bearing capacity of the premise , not only to increase the plasticity of the reinforcement member , but also can improve economic efficiency , we choose as raw materials in accordance with a certain proportion of carbon fiber and glass fiber layer INTERMIXING reinforced concrete members . Brittle carbon fiber , high cost , and glass fibrous soft , cheap , hybrid composite materials made ??from them can effectively improve the toughness of carbon fiber composite materials and significantly reduce the cost of carbon fiber composite material . Based on the above considerations , the use of CFRP (carbon fiber ) / of GFRP ( glass fiber ) layer hybrid fiber cloth reinforced concrete members . In order to study the use of CFRP (carbon fiber ) / GFRP ( glass fiber ) layer hybrid fiber cloth reinforced concrete members reasonable paper using a combination of theoretical analysis and experimental method , targeted to carry out a CFRP / GFRP layer hybrid fiber Reinforced concrete beams , obtained by test test beam cracking load , yield load , ultimate load , mid-span deflection and load - strain curve , the type of failure . The test results show that : the average strain distribution of the test beams reinforced with the plane section assumption; CFRP / GFRP layer hybrid fiber cloth is effective to improve the flexural capacity of reinforced concrete beams ; reinforcement material mixed proportion of trials beam flexural capacity of influential ; paste the bottom and sides of fiber Reinforced concrete beams can play a purpose of its flexural capacity increase . And approximate calculation method proposed CFRP / GFRP layer hybrid fiber reinforcement concrete beams through theoretical analysis , to provide a design reference for engineering practice .

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CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures > Girder
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