世界桥梁
世界橋樑
세계교량
WORLD BRIDGE
2015年
1期
48-54
,共7页
杨敏%李雅娟%王春生%蔡雯%赵晓林
楊敏%李雅娟%王春生%蔡雯%趙曉林
양민%리아연%왕춘생%채문%조효림
桥梁选型%综合评价指标体系%层次分析法%熵理论%权重
橋樑選型%綜閤評價指標體繫%層次分析法%熵理論%權重
교량선형%종합평개지표체계%층차분석법%적이론%권중
bridge type selection%integrated evaluating index system%analytical hierarchy process%entropy theory%weight
针对目前桥型选择评价指标不全面、指标权重不明确、客观评价标准缺失、主观经验依赖性强、对单个指标评价结果敏感度高的问题,提出了一种基于综合指标体系下的桥型选择方法。首先,建立了包含安全、适用、经济、耐久、美观及环保六大方面的综合评价指标体系;然后采用级联式层次分析法-熵法、专家调研法计算指标体系权重;最后通过与其它方法比较,并结合工程实例应用检验,表明采用该方法能够有效地进行桥型选择,较现有桥型选择方法具有对决策者依赖性低、系统可靠性更高、对指标误判及评价误差敏感度更低的特点。
針對目前橋型選擇評價指標不全麵、指標權重不明確、客觀評價標準缺失、主觀經驗依賴性彊、對單箇指標評價結果敏感度高的問題,提齣瞭一種基于綜閤指標體繫下的橋型選擇方法。首先,建立瞭包含安全、適用、經濟、耐久、美觀及環保六大方麵的綜閤評價指標體繫;然後採用級聯式層次分析法-熵法、專傢調研法計算指標體繫權重;最後通過與其它方法比較,併結閤工程實例應用檢驗,錶明採用該方法能夠有效地進行橋型選擇,較現有橋型選擇方法具有對決策者依賴性低、繫統可靠性更高、對指標誤判及評價誤差敏感度更低的特點。
침대목전교형선택평개지표불전면、지표권중불명학、객관평개표준결실、주관경험의뢰성강、대단개지표평개결과민감도고적문제,제출료일충기우종합지표체계하적교형선택방법。수선,건립료포함안전、괄용、경제、내구、미관급배보륙대방면적종합평개지표체계;연후채용급련식층차분석법-적법、전가조연법계산지표체계권중;최후통과여기타방법비교,병결합공정실례응용검험,표명채용해방법능구유효지진행교형선택,교현유교형선택방법구유대결책자의뢰성저、계통가고성경고、대지표오판급평개오차민감도경저적특점。
At present ,there are several underlying problems in bridge type selection ,such as the lack of an integrated evaluating index system ,the uncertain weights for indexes ,the lack of objective evaluating norms ,the strong dependence on subjective experience and the high sensitivity to the evaluating results of the single index .For these reasons ,a bridge type selection method based on the integrated index system was proposed .Firstly ,an integrated evaluating index system w hich covers the six aspects of safety ,applicability ,better economic performance ,durability ,aes‐thetic effect and environmental protection was established .Then ,the entropy method (a kind of analytical hierarchy process) and the expert interview method were adopted to calculate the weight of each index .Based on the comparison of the method with other methods and the verification of the actual project application ,the aforementioned method was proved effective in bridge type selec‐tion .Compared with the current bridge type selection methods ,the method presented has distinc‐tive features of low dependence on decision makers ,higher systematic reliability ,lower rate of in‐dex misjudgement and lower evaluating error sensitivity .