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Analysis of the Resistence Capacity of the Reinforced Concrete Beams Strengthened with CFRP and the Stress Concentration at the Plate end

Author: XuJianBo
Tutor: WangChunHua
School: Southwest Jiaotong University
Course: Structural Engineering
Keywords: Carbon fiber cloth Reinforcement Stress concentration Secondary load Anchor
CLC: TU375.1
Type: Master's thesis
Year: 2002
Downloads: 227
Quote: 10
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Abstract


Domestic and international data on the material properties of CFRP reinforced concrete structure construction technology , the development of the theory and practical application of simple introduction . Described the mechanical characteristics of reinforced concrete beams to improve the bearing capacity of normal section of the carbon fiber cloth , secondary load characteristics of the beam the reinforced bearing capacity theory analysis . Beam loaded reinforced beam strain , stress , stiffness and load relationship; affect the rear spar reinforcement of the bearing capacity factor analysis and presentation. CFRP reinforced concrete beams in the load after the end of the fiber cloth appears the phenomenon of stress concentration , which is to reinforce the main reason for the failure . CFRP reinforced beams in force end stress concentration theory analysis and application ANYSIS finite element calculation software calculated the stress distribution curve of carbon fiber cloth ends . In case of different anchorage length , the concrete stress CFRP end zone was calculated based on the results of CFRP reinforced concrete beam end anchorage problems put forward some suggestions . Method are introduced in order to improve the shear capacity of CFRP reinforced concrete beams , beam loaded destruction , affecting the the shear capacity factor , stress development elaborated . According to the characteristics of the shear failure , the calculation of shear capacity of beams made ??some theoretical analysis , put forward some suggestions to improve the effect of shear reinforcement .

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