基于瞬態(tài)傳熱的鋼結(jié)構(gòu)構(gòu)件抗火分析.pdf

1、分類號(hào)：TU3單位代碼學(xué)號(hào)密級(jí)跫792岳9610005S200204044公開北京工業(yè)大學(xué)碩士學(xué)位論文中文題目基王暖查佳墊的翅結(jié)構(gòu)控鮭蘊(yùn)么僉塹英文并列題目：FIRE—RESISTANT^NALYSISOFSTEELS!塞型￡!!』墾至叢曼叢旦曼基BASEDONTRANSIENTHEATTRANSFER研究生姓名：王扭塹專導(dǎo)業(yè)：苤掏工猩師：強(qiáng)愛鹽研究方向：塑結(jié)掏職稱：麴撞論文報(bào)告提交日期：2QQ生旦!H學(xué)位授_『卜1期：2Q業(yè)生』目31I

2、i授予單位名稱和地址：jE童王、業(yè)厶堂IE寶直麴圈匡堊巫I型!業(yè)蘭北京工業(yè)大學(xué)，|=學(xué)碩士學(xué)位論文ABSTRACTBecausethearchitecturalvelocityofthesteelstructureisquick，itsaseismaticfunctionisgood，isarchitecturalfagadeisbeautifulandchangefulAtthesalnetime，itsapplicationfore

3、groundwillbeveryextensivealongwiththeoutputofthesteelbecamemoreandmoreAlthoughthepoorfireresistanceabilityisthemainweaknessofsteelstructureinthatitsmechanicalpropertysuchasstrengthandelasticmodulusdecreaseseverelyinhight

4、emperatureWhenfireOCCurS，severedamageorglobalcollapsewillhappentothesteelstructureInchinatest—basedfireresistancedesignmethodistheprevailingfireresistancedesignmethodforsteelstructuresHoweverusingthetest—basedfireresista

5、ncedesignmethod，itiscostlyandhardtosimulatethemagnitudeanddistributionofloadsandtheendrestrictionconditionsofthespecimensinthestructureTheultimatefireresistanceofthesteelstructureandthefireprotectionmeasuresCallbedetermi

6、nedthroughcalculation—basedfireresistancedesignmethodTherefore，athoroughstudyofthecalculation—basedfireresistancedesignmethodhasgreattheoreticalsignificanceandpracticalvalueThecalculationmethodoffiresafetyofsteelstructur

7、ememberbroughtforwardisbasedontheanalysisofagreatdealofparameterAndthepaperisonthebasicofnonlinearfinite，heattransferandmechanicsofelasticitytheheattransfermodelandmechanicsmodalfurcedonstaticloadandthermal10adofasteelst

8、ructurememberunderfireissimulatedbythesoftwareofANSYS。Thispapersimulatedsteelstructurememberrespondtotemperatureinthefire，anddisplaythetemperaturedistributingnephogramandvariationalcarveofsomegivennodesinthesectionInacco

9、rdingtocomparingthedifferenttemperaturedistributingofthedifferentsectionandthedifferentfashionbearingfire，weCallgetthatincreasingthethicknessofthewebplateisveryimportanttothefire—resistantofsteelstructureFinallythispaper