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Study on Durability Design and Assessment of Reinforced Concrete Structure

Author: ZhuJianQuan
Tutor: LiHuiQiang
School: Huazhong University of Science and Technology
Course: Structural Engineering
Keywords: reinforced concrete structure durability holism assessment and design
CLC: TU375
Type: Master's thesis
Year: 2005
Downloads: 588
Quote: 8
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Abstract


The concrete structure is applied to various kinds of project structure extensively,such as industry and civil buildings , roads and bridges , ports and irrigation works ,etc. Concrete was regarded as a kind of construction material with good durable performance for a long time. In fact, the concrete structure will wear out , lose durable performance gradually under the long-term natural environment and service conditions, that will influence the function of use and security of the structure . The economic losses caused by the durable venereal disease of structure are very enormous both at home and abroad according to the statistics. The research of concrete structure durability has already caused the extensive attention of the academia. It has been made a series of valuable achievement about concrete degradation mechanism and model arithmetical research on various kinds of danger factor on the material level. These achievement have reference value at theory and project certainly for durability assessment of concrete in structure predict and have reflected in the new Code for design of concrete structures. However, the degradation of concrete durability is a result of the multifactor comprehensive function, at the same time there are a lot of factors influencing concrete structure durability, include carbonization, alkali –aggregate reaction, reinforcing bar corrosion , freeze-thaw, chemical erosion. There are a lot of existing researches often carry on deeper research only of a single certain factor among them both at home and abroad, and draw out the single function mechanism and relevant conclusion of a factor, but make less research on concrete’s durability at the same time with two or more factors. The existing durability assessment and design often use the single factor’s conclusion and achievement to study the durability problems directly ,that is not according with the structure’s using state, and the result will have greater deviation with the fact . This text has summarized the existing conclusion and achievement of single factor’s research, structured the durability model of reinforced concrete’s durability in terms of holism, and provided relevant calculation formulae and methods for the durability assessment and design of reinforced concrete by new thinking .the works maybe have valufor the durability assessment and design of the reinforced concrete structure.

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