1m以下筏板基礎(chǔ)施工期溫度及溫度應(yīng)力研究(1)

1、西南交通大學(xué)碩士學(xué)位論文1m以下筏板基礎(chǔ)施工期溫度及溫度應(yīng)力研究姓名：羅降申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：楊彥克20091201西南交通大學(xué)碩士研究生學(xué)位論文第1l頁AbstractAstherapideconomicdevelopmentourcountrythemassconcretearisesinquantityinthenormalindustrialandcivilconstructionbuildingsButt

2、heresearchonthecomparativelysmallmassconcreteusedinthenormalbuildingsisnotdeepenoughandcomprehensive，thecoveringareaintherelatedcodesarelimitedandnarrowManyproblemsinconstructionpracticehavetobesolvedbytheexperience，with

3、outthesupportsoftheoriesItlcadstomuchunnecessarywasteof1abormaterialandfinancialresources，theresultofquality—controlisunsatisfactorytoo，especiallytheraftboardlessthanonemeterWasgiventemperaturecontrolforsafetyinconstruct

4、ionpracticeInconnectionwiththisphenomenon，theresearchinthisarticlemainlyincludes：1)Thetemperaturefieldandcalculationmethodofstresswithcreepareintroducedaccordingtotheheat—conductiontheorybasedonalargenumberofreferences，a

5、ndtheresourcesoftheparameterandequationsinthecalculationaregiveninthisarticle2)AnalysisofthemassconcreteareimprovedandverifiedaccordingtothefirstprinciplesofFEM，andconsiderationsoftheinfluenceofcreep3)Asallexamplethetemp

6、eraturecurveisgivenbasedontestsoftheraftboardslessthanonemeterofHaoTingBusinessbuildinginChengDuThepossiblemaximumdifferencebetweenintemaltemperatureandtheexternaloneandthepullingstressareestimatedbytheoreticalcalculatio

7、n，comparedwiththemeasuredvalue4)Thepossiblemaximumdifferencebetweeninternaltemperatureandextemalone，aswellasthemaximumpullingstressontheraftboardlessthanonemiterareestimatedbasedonthetheoreticalanalysisindiversityofsetti

8、ngsinclude：differentintensitylevels，differentdosageofcementanddifferentcastingtemperatureandSOonnlefiniteelementsanalyzesoftwareMIDASisusedtogiveafullanalysisandverificationKeywords：Theraftboardless，hydrationheat，thetemp