带大仓门装配式粮食钢板筒仓应力分析与增强方案_王振清

3010201210HENANSCIENCEVol.30No.10Oct.20122012-08-1010YJS0461956-1987-.1004-3918201210-1499-04450001BC2425《》GB50322－2001ANSYSTM.、...TU33AStressAnalysisandStrengtheningSchemeforanAssemblageGrainSteelSilowithaLargeBinGateWangZhenqingShangYucaiZhouChunleiDuanJunSchoolofCivilEngineeringandArchitectureHenanUniversityofTechnologyZhengzhou450001ChinaAbstract“Codefordesignofgrainsteelsilos”GB50322－2001andANSYSTMwereutilizedtoanalysisstressforanassemblagesteelsilowithalargebingate．Theconclusionwasdeterminedthatinadditiontothebottomofsilolargerstresswasappearedaroundtheopeninginsilowallandthechangedcross－sectionofsilowallandribstiffener．Thereforetheopeninginsilowallandthechangedcross－sectionofsilowallandribstiffenercouldbethevulnerablepointsinthesilo．Accordingtothevulnerablepointslistedabovethespecificstrengtheningprogramisdetermined．Keywordsassemblagesteelsilobingatefiniteelementanalysisstrengthening、、、、、[1]．．．《》GB50322－2001ANSYSTM．1BC2425BC242524m28．5m10000t．251．14m．Q345f＝310MPa1．72．SGH440f＝300MPa2．600mm．30101～25．2《》GB50322－2001《》GB50322－20014．1．5hndn1．51．54．2．4hn15mdn10m[2]．BC2425《》GB50322－200134．3BC2425ANSYSTM．Shelll81Beaml88．1457510826．．[3-5]．56．1Fig．1Thethicknessofsilowall2Fig．2Thethicknessofribstiffener1086420/mm135791113151719212325/121086420/mm135791113151719212325/3Fig．3Thelooptensilestressofsilowall4Fig．4Themaximumcompressivestressofribstiffener300250200150100500/MPa135791113151719212325/350300250200150100500/MPa135791113151719212325/5Fig．5Thewholefiniteelementmodelofsilo6Fig．6ThenetworkpartitioningofsilogateSYSSYS1500--2012104、Mises789．79Mises9～1015～1621～24．．1．8．ANSYSTMMises10．10．《》GB50322－20015％～15％．．5．600mm、

  350300250200150100500/MPa135791113151719212325/10Fig．10Thecomparisonbetweenfiniteelementanalysisandcodecalculation7MisesFig．7TheMisesstressofsilowall8MisesFig．8TheMisesstressofribstiffener9MisesFig．9TheMisesstressofgateSYS.140E+08.743E+08.135E+09.195E+09.255E+09.441E+08.104E+09.165E+09.225E+09.285E+09SYS.140E+08.743E+08.135E+09.195E+09.255E+09.441E+08.104E+09.165E+09.225E+09.285E+09NODALSOLUTIONSTEP=1SUB=1TIME=1SEQVAVGDMX=.017071SMN=.140E+08SMX=.285E+09NODALSOLUTIONSTEP=1SUB=1TIME=1SEQVAVGDMX=.017071SMN=.140E+08SMX=.285E+091501--3010L100×10．．、1112．61．2．3《》GB50322－20015％～15％．4①②．1．J．200134446-55．2．GB50322－2001S．2001．3．ANSYSM．200773－77．4．D．2012．5．J．2011283104－105．11MisesFig．11TheMisesstressofproject112MisesFig．12TheMisesstressofproject2SYS.318E+07.606E+08.118E+09.175E+09.233E+09.319E+08.893E+08.147E+09.204E+09.261E+09NODALSOLUTIONSTEP=1SUB=1TIME=1SEQVAVGDMX=.016107SMN=.318E+07SMX=.261E+09SYS.140E+08.708E+08.128E+09.184E+09.241E+09.424E+08.992E+08.156E+09.213E+09.269E+09NODALSOLUTIONSTEP=1SUB=1TIME=1SEQVAVGDMX=.017071SMN=.140E+08SMX=.269E+091502--