古建筑木構(gòu)件基于累積損傷模型的剩余壽命評估_12255.pdf

1、武漢理工大學(xué)碩士學(xué)位論文古建筑木構(gòu)件基于累積損傷模型的剩余壽命評估姓名：李瑜申請學(xué)位級別：碩士專業(yè)：防災(zāi)減災(zāi)及防護工程指導(dǎo)教師：瞿偉廉20080401武漢理工大學(xué)碩士學(xué)位論文ABSTRACTChinesetraditionalarchitectureholdsaveryimportantpositionintheworldwithitstimberstructure，longhistorylargequantitycomplexstru

2、cture，richscientificandculturalcontent，andexcellentseismicbehaviorsManyhistorictimberstructureenduredearthquakes，gales，corrosionofphysicsandchemistrybutstillstandfirmlyowetotheoutstandingmaterial，specialstructureandabora

3、tivemaintenanceButtherearefewresearchonthisaspect，estimatethesecuritycorrectlyandputforwardremedyprojectisabigproblemassofarTheestimationoftheresidualservicelifeoftimberstructurethatisverypopularabroadisofimportancetopro

4、pertymaintenanceBasedonextensiveinvestigationofconstructiontechniquehistoryofChineseancientbuildings，thispapercreatedamodelontheimitationoftherampartofXi’aneastcitygateinChina，andbasedonthemodeltheworkisasfollows：Thepape

5、rmakesathoroughinvestigationonthestructuralpropertiesofchinahistorictimberstructureswiththeemphasisonthesuitabletheoreticalmodelingAccordingtomechanicsanalysisandscientificpredilectionofancientarchitecture，gettheloadhist

6、oryofthestructurefromthefiniteelementanalysisAnditprovedthatstructuraldestructisnotmaterialyieldbuttenonjointapartThereisamaturemethodtopredictloadcarryingcapacityandtheresidualservicelifeoftimberstructure，thispaperwillp

7、utforewordthemethodasaproposalofpredictingtheresidualservicelifeoftimberstructuresAncienttimberstructureusuallyisabuildingwithabighousetopwherecentralizedmostoftheweightofthewholestructureonthegroundAlltheweightcantransf

8、ertothepillarfromgirderthentothegroundSothepillarusuallyenduredaxialforceandthegirdmomentFromthestaticFEanalysis，wecangettheaxialforceandmomentandputthemintothecumulativedamagemodelThenwegettheresidualservicelifeofthemem