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Study on Disease Treatment and Reinforcement Technology of Reinforced Ribbed Arch Bridge

Author: YuanRui
Tutor: ZhouJianTing
School: Chongqing Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Reinforced Concrete Arch Bridges Reinforcement Technology Key sections Model test Relying on bridge
CLC: U445.7
Type: Master's thesis
Year: 2010
Downloads: 65
Quote: 0
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Abstract


Reinforced concrete rib arch bridge due to the light weight , small thrust funding characteristics of the province , has been widely used since the 1990s in western China , but with the development of economic construction , traffic continues to increase , the overload phenomenon the intensified highlights a range of diseases , these bridges urgent Treatment . But so far no system technology can be used for guidance Reinforcement for reinforced concrete rib arch bridge . Therefore , for practical Disease Treatment and reinforcement of reinforced concrete rib arch bridge technology is very urgent and realistic significance . The main work of this article : the common diseases of the reinforced concrete rib arch bridge mechanism analysis , combined with the existing bridge Disease Treatment Technology summed Treatment technologies applicable to the common diseases of the rib arch bridge , and gives the main component disease Treatment method and the design and construction of improvements. ( 2 ) against the ribs arch bridge structure structure and mechanical characteristics of research , combined with the existing arch bridge , the key sections of reinforced concrete rib arch bridge closed box reinforcement technology . Lateral distribution and to improve the load , the cross-section increases , fracture mechanics analysis of three aspects of the reinforcement mechanism . ③ rib arch bridge structure stress and failure modes of analysis to determine the control key sections of the arch rib bearing capacity ; closed layer design ideas combination of key sections based on mathematical models and finite element simulation analysis . On this basis , through reinforcement , reinforced model test results are analyzed and demonstrated reliability and practicality of the key sections of reinforced concrete rib arch bridge closed box reinforcement technology . Finally, by relying bridge theory is further evidence of the key sections of reinforced concrete rib arch bridge box closed reinforcement technology in a real bridge strengthening scientific and superiority . The results of this study for the same type of bridge Disease Treatment and reinforcement Tigong reliable reference , with a wide range of engineering applications prospects , and significant social and economic benefits .

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridge Construction > Bridge maintenance, repair and remediation
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