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《三标度模糊层次分析法在桥梁安全评估中的应用-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第l0卷第8期中国安全生产科学技术V01.10No.82014年8月JournalofSafetyScienceandTechnologyAug.2014文章编号:1673—193X(2014)一08—0156—06三标度模糊层次分析法在桥梁安全评估中的应用木常健’张志军,王君莉。(1.南华大学环境保护与安全工程学院,湖南衡阳421001;2.南华大学核资源工程学院,湖南衡阳421001;3.郑州华信学院机电工程学院,河南郑州451150)摘要:为了客观、系统地评估桥梁安全状况,提出三标度层次分析法与模糊综合评判的集成评估方法。首先,运用层次分析法分析影响桥梁安全状况的
2、评估指标,进而建立桥梁安全评估的目标层、准则层、指标层,并形成桥梁安全评估指标体系。采用三标度层次分析法计算评估指标权重。其次,通过模糊综合评判模型,对桥梁安全评估体系进行分层次模糊综合评估。结合模糊加权平均算子和模糊综合评判最大隶属度原则,确定桥梁安全状况分值,参照评语集得出桥梁安全等级。最后,将该集成评估方法应用到江坡头大桥工程实例中,评估结果与现行规范一致,体现了该方法的可行性与实用性。关键词:桥梁安全;三标度层次分析;模糊评判;安全评估中图分类号:X951文献标志码:Adoi:10.11731/j.issn.1673.193x.2014.08.028Applic
3、ationofthree-scalefuzzyanalytichierarchyprocessinbridgesafetyassessmentCHANGJian,ZHANGZhi-jun,WANGJun.1i。(1.SchoolofEnvironmentalProtectionandSafetyEngineering,UniversityofSouthChina,HengyangHunan421001,China;2.SchoolofNuclearResourcesEngineering,UniversityofSouthChina,HengyangHunan42100
4、1,China;3.SchoolofMechanicalandElectricalEngineering,ZhengzhouHuaXinUniversity,ZhengzhouHenan451150,China)Abstract:Inordertohaveanobjectiveandsystematicalevaluationofbridgesafetyandkeepthebridgeworkingwell,acomprehensiveintegratedassessmentmethodbasedonthree—scaleanalytichierarchyprocess
5、andfuzzyeval—uationmodelwaspresented.Onthebasisofthemethod,theapplicationresearchofbridgesafetyassessmentwasprincipallyillustratedasfollows.Firstly,theassessmentindexesofbridgesafetyweredeterminedthroughtheanal-ysisofvariousfactorsthathadeffectsonsafetyoperationofbridgesbyanalytichierarc
6、hyprocess.Theassessmentindexsystemforbridgesafetywasestablished,whichwasclassifiedintotargetlayer,criterionlayerandindexlay—er.Consideringthedeficiencyoftraditionalanalytichierarchyprocessthatinaccuratelycalculatedtheweightofas-sessmentindex,thethree—scaleanalytichierarchyprocessmodelwas
7、introduced.Bytheimprovedmodel,theweightsofassessmentindexeswerecalculatedprecisely.Secondly,theassessmentsystemforbridgesafetywase—valuatedbyusingfuzzycomprehensiveevaluationmethod.Combiningthefuzzyweightedaverageoperatorwiththemaximummembershipdegreeprincipleoffuzzycompr
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