鋼筋混凝土開裂面剪力傳遞性能研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文鋼筋混凝土開裂面剪力傳遞性能研究姓名：張申申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：車軼20090601鋼筋混凝土開裂面剪力傳遞性能研究ResearchonsheartransferbehaviorincrackedreinforcedconcreteAbstractShearfailureandthetheoryofshearstrengthofreinforeedconcretehavebeenthebasi

2、cproblems，manyresearchershavesetupseveralmodelsHowever，thereiSnotheorywhichcallexplaincompletelyandbeacceptedwidelyuptonowMostofmethodsusedbycodesaresemiempiricallyandsemitheoreticallyonthebasisofexperimentsAsaresult，itc

3、reateswasteundersomecircumstanceswhileitwillbeunsafeinothercasesSo，itiSusefultostudysheartransferacrosscracksinreinforeedconcreteforbuildingupequationstocalculateshearstrength，andforprovidingmodelstoelementanalysisTheinf

4、luenceofreinforcementratio，dowelactionofreinforcingbars，anddimensionsofshearplaneonsheartransferbehaviorofcrackedreinforcedconcretewereinvestigatedbothanalyticallyandexperimentallybyconductingdirectsheartestson12“Z”typep

5、ushoffspecimensBehaviorofthespecimensunderloadiSalsodiscussedShearslip，shearcrackwidthofthecrackplaneofspecimensandthesteelstrainwererecordedduringtheexperimentTheexperimentsprocessweredescribedandtheresultswereanalyzedt

6、oobtaintherelationshipbetweenshearstressandshearslip，shearstressandcrackwidth，shearslipandcrackwidthshearslipandsteelstrain，crackwidthandsteelstrainTheequationsforpredictingtheultimateshearstressesofcrackedreinforeedconc

7、reteproposedbyvariousresearcherswerecomparedandverifiedbyexperimentaldataandresultsofotherresearchersEquationswhichprovidebetterpredictionsaremodifiedbasedontheformeranalysisKeyWords：Sheartransfer；Reinforcedratio；Dowelac