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Study on Component Weight Adjustment and Comprehensive Evaluation Method of CFST Arch Bridge

Author: SunDongSheng
Tutor: ZhouShuiXing
School: Chongqing Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: CFST Arch Bridge Weighting coefficient Technical condition evaluation Analytic Hierarchy Process Index scale The three Jiantiao Bridge
CLC: U448.22
Type: Master's thesis
Year: 2011
Downloads: 18
Quote: 0
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Abstract


CFST Arch Bridge is one of the main types of long-span arch bridge until 2011 , the domestic construction steel pipe concrete arch bridge over 260 . However , there are many bridges exposed diseases , such as tube Void , anchor corrosion , bridge vibration , or even boom , tied corrosion fracture , seriously affect the durability and safety of the bridge . To carry out the maintenance and repair of concrete filled steel tube arch bridge , you must first assessment of the state of technology . But the existing highway bridges and culverts conservation norms \The paper relies on the Zhejiang Provincial Highway Administration research project \The problems of traditional analytic hierarchy process scale of 1 to 9 , 9 index scale CFST Arch Bridge Part weight values ??. The article discusses the the group sentenced theory and the principle of the right to change parts weight determination process for large CFST arch bridges complexity , . ( 2 ) steel pipe concrete arch bridge component weight coefficient computing research . Expert investigation , access to the component weights between pairwise comparison judgment matrix , the preparation of special program MATLAB -supporting concrete filled steel tube tied arch bridge various components of the weight coefficient . ( 3 ) to explore concrete filled steel tubular arch technology condition , important component of the \④ use of research results based on the project - the technical condition evaluation of the the Zhejiang Sanmen Jiantiao Bridge , the evaluation results D_R = 63.8 , slightly lower than the current conservation norms assessment results ( D_R = 69.8 ) , the assessment results truly reflect the the actual technical condition of the three key jump Bridge and qualitative analysis in good agreement .

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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Arch bridge
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