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Study on the Ductility of Reinforced Concrete Special-shaped Columns with Different Design Parameters

Author: ZuoXueYong
Tutor: LiuLingJing；ZhangZhongXian
School: Huazhong University of Science and Technology
Course: Structural Engineering
Keywords: Shaped reinforced concrete columns Displacement ductility Protective layer thickness Column limb aspect ratio Stirrup
CLC: TU375.3
Type: Master's thesis
Year: 2011
Downloads: 11
Quote: 0
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Abstract


With the rapid development of urban construction , shaped reinforced concrete columns structure is increasingly common, especially in multiple high-rise residential buildings of reinforced concrete . While some research institutes shaped reinforced concrete columns launched a series of experiments and theoretical studies , and related design procedures have been developed , but due to the asymmetry of the cross-section of the reinforced concrete columns , resulting shaped columns ductility compared to ordinary rectangular columns . Therefore, further research shaped columns ductility still has a very important practical significance . Shaped column structure with Research shaped columns ductility of theory and research methods systematic review based on the use of finite element analysis software ANSYS modeling analysis of reinforced concrete columns , shaped reinforced concrete the column related design parameters affect the performance of ductility . Thesis shaped columns used two typical form of asymmetric section -T -shaped , L-shaped cross-section shaped columns as the research object , the displacement ductility , respectively, to explore the different thickness of concrete cover , different column limbs aspect ratio and different stirrup shaped columns under the ductility performance , and to analyze the influence of various parameters on the performance of shaped columns ductility . The paper studies the following conclusions : other things being equal , the different cross-sectional shape reinforced concrete columns with the thickness of the protective layer , the aspect ratio of the column limb increases, lower displacement ductility shaped columns ; With stirrup rate increase increase in displacement ductility of shaped columns ; other conditions are the same T- shaped Columns ductility than the L -shaped cross- shaped columns ductility . According to the research findings , the paper discussed recommendations designed to improve the ductility of Reinforced Concrete Columns .

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