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《Sichuan Building Science》 2010-02
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Selection and comparison of optimum strengthening scheme for arch bridges by using fuzzy analytic hierarchy method

SUN Hao,QIAN Yongjiu,FAN Qiwu(School of Civil Eng.,Southwest Jiaotong University,Chengdu 610031,China)  
Many factors need to be considered during the choice of strengthening scheme for arch bridges,and most factors are fuzzy.The reasonable and scientific strengthening scheme is an important precondition to ensure the effectiveness and quality of the strengthening engineering.The elementary objects of the bridges strengthening are effect reliability,economic reasonability,technological feasibility,and convenience of construction,which are used to appraise the strengthening scheme.Based on the basic objective of bridges strengthening,two levels fuzzy comprehensive appraisal index system of strengthening scheme are established,and the best scheme is choosen.Combining the idiographic example of arch bridge reinforcement,the process of fuzzy analytic hierarchy and optimum result is given.The result tests that fuzzy analytic hierarchy method is feasible during the selection and comparison of optimum strengthening scheme for arch bridges.
【Fund】: 高等学校优秀青年教师教学科研奖励计划(A0110719950102);; 四川省交通建设科技项目(2006A24-584)
【CateGory Index】: U445.72
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