混凝土結(jié)構(gòu)早期溫度收縮裂縫控制的研究分析.pdf

1、同濟(jì)大學(xué)碩士學(xué)位論文混凝土結(jié)構(gòu)早期溫度收縮裂縫控制的研究分析姓名：蔡從德申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：金國芳2003.3.1同濟(jì)大學(xué)碩士學(xué)位論文；∞；_；_目i；；≤目；l目_；；；j；；；；；E；i；；ABSTRACTManyFactorswillresultincrackingwithinearlyageconcrete，andlengthofstructurewastakenforthemainSo，dilatatio

2、njointsaresetatprescriptivedistance，atthe蚰／netime，aseriesofotherproblemariseIsthelengthofstructurethedeterminantoftensilestressTllisdissertationstudythermalandshrinkagestresseswithinearlyageconcretesystematicallyFirst，th

3、ermaldilation，shrinkage，creepandotherperformanceofearlyageconcretearediscussedandthemathematicalmodelsarereviewedSecondlystresswithinbaseslabofstructureiscalculatedItisfoundthattemperaturefieldofmassconcretedeterminestre

4、ssdistributionwithinbaseslabTensilestresswillaugmenthardlywhilelengthofstructureincreaseFinallystresswithindifferentsizedwallofbasementiscalculatedanditisfoundthatlengthofwallisonlyasubordinatefactorToaconclusionstructur

5、ecarlbeconstructedlengthwaysincessantlybuttemperatureriseandshrinkageshouldbecontrolledExpansionconcreteisappropriatetowallofbasementbutsometimesdoharmtobaseslabKeywords：earlyageconcretedilationshrinkagecrackdilatationjo