混凝土砌塊砌體基本力學(xué)性能試驗(yàn)研究與非線性有限元分析.pdf

1、湖南大學(xué)碩士學(xué)位論文混凝土砌塊砌體基本力學(xué)性能試驗(yàn)研究與非線性有限元分析姓名：宋力申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：施楚賢20050428涅、疑砌塊fr9]體摹本力學(xué)性能試驗(yàn)研究與非線性有限元分十斤ABSTRACTBasedontheexperimentalresearchthefundamentalmechanicalandnon—linearbehaviorofconcreteblockmasonryisanalyzedan

2、ddiscussedbyusingseveraltheoryandFEAmethodFirstsuperioritygeneralsituationofapplicationathomeandabroadandproblemsfacedinresearchingofconcreteblockmasonryissummarizedThroughtheexperimentsof27compressivespecimensand36shear

3、specimens，thefailurepattern，thecrackingresistantload，theultimatecapacityanddeformationcapacityofconcreteblockmasonryareanalyzedBythecomparisonofungroutedmasonryandmasonryitisshownthatthebrittlecharacteristicsofungroutedm

4、asonryissignificantlymorethanformasonryBasedonthecomparisonofgroutedmasonryandungroutedmasonry，itisshownthatthecrackingloadandultimateloadofgroutedmasonrycanbesignificantlyhigherthanforsimilarungroutedmasonryandthenumber

5、ofcrackofgroutedmasonryissignificantlymorethanforsimilarungroutedmasonryBycompressivetestsonspecimens，thewholestressstraincurveisregressedandthevalueofelasticmodulusandPoission’sRatioofconcreteblockmasonryareproposedBase

6、donthecomparisonofgroutedmasonryandungroutedmasonryonthestress—straincurve，itisshownthatthestressstraincurveofgroutedmasonryissignificantlynon—linearcharacteristicsthanforsimilarungroutedmasonryBasedoncompressivemechanis

7、mofconcreteblockmasonryandthemainfactorsinfluencingthecompressivestrength，thecalculationformulaofcompressivestrengthisforwardedbythestressmethodandthestainmethodeachotherBasedonshearmechanismofconcreteblockmasonryandthem

8、ainfactorsinfluencingtheshearstrength，thecalculationformulaofshearstrengthisalsoforwardedbytheHoffmantheoryandTwinstressstrengththeoryThecalculationformulaofthepaperismorecomprehensiveandreasonablethanthecalculationformu

9、laoftheCodeforDesignofMasonryStructureandthecalculatedresultsareingoodagreementwiththetestresults’fhepaperdoessomeprofitableresearchonestablishingthecalculationformulaofcompressivestrengthandshearstrengthbytheoreticalres

10、earchFromthestrengthanddeformationcharacteristicsofconcreteblockwallunderhorizontalandverticalloading，theresearchontheshearstrengththeoriesandformulasismadeTheprincipaltensilestrengththeoryiscombinedwiththeshear—friction