h型钢惯性矩,H型钢截面积

h型钢惯性矩,H型钢截面积

Sincethetorsionalmomentofinertiaofsectionsteel,especiallysplitT-sectionsteel,isnotlistedinthesectioncharacteristicstableofGB/Tll263-l998,whenitisnecessarytoconsiderthetorsionaleffectofthesectionsteelcomponent(suchasthebendingoftheaxialcompressionmemberTorsionalbucklingandcompressionbendingmembers,thenlet’sstartwithourfirst"H-beamtheoreticalweighttable".1)Category,modelandcross-sectionalsizeparameterdiagramYouwillfindthattheparametersscreenshottedbyRishengareonlypartoftheentiretable.Thefollowingcross-sectionalarea,radiusofinertiaandmomentofinertiaareaseriesof

Thetorsionalmomentofinertiaofthesectionsteeliscompiledintoatablefordesignandapplication.KeywordsHot-rolledH-shapedsteel,splitT-shapedsteel,torsionalmomentofinertia,partialdifferentialequation,numericalmethod,CalculationofTorsionalConstantforthe22H-shapedsteelmanufacturersacrossthecountrymonitoredbyMysteelonDecember1Amongenterprises,theoperatingratethisweekwas70.97%,adecreaseof3.22%fromthepreviousweek;theactualweeklyoutputofsteelplantswas264,000tons,adecreaseof9.18%fromthepreviousweek;thecapacityutilizationrateofsteelplantswas47.33%,adecreaseof4.79%fromthepreviousweek;

Thepictureaboveshowsatypicalcross-sectionofcold-formedthin-walledsteel.Asshowninthepictureabove,thecross-sectionsofcold-formedthin-walledsteelmainlyincludeC-shapedsteel,U-shapedsteel,Z-shapedsteel,channeltype,squaretube,roundtube,profiledsteelplate,etc. Whatarethecharacteristicsofcold-formedthin-walledsteelstructures? 1.与旋转的旋转，themomentofinertiatheasemecross-sectionalAreaisusedTodescirectetheabilityofthecross-sectionToresistBending.itreferferstocternrotationaxis。 Thegreaterthemomentofinertiaofasectionaboutacertainaxisofrotation,thestrongerthesection'sresistancetorotationaroundthataxis.

Obtaintheallowablemomentofinertia(mm3),selecttheH-shapedsteelspecifications(upgradebyonelevel),andselectthespecifications. formulaforcalculatingthemortofinertiaofhshopeelisasfollows：i=（1/12）tw^3d+（b-t）f^3.amongthem，iisthemomentofinertia，tistheflangethickness，wistheflangeThickness，wistheflangewidtheflangeflangewidth，andtheTheTheThicknicknicknicknicknicknicknickNessofthehicknicsofthehnicknessofthehhepheapthehthehapepeel。 Depth,bishalfthedistancebetweentheupperandlowercurvededges,fisthewidthoftheupperandlowerflanges

/12.I(yc)=B(3)(H-h)+(B-b)(3)h/12.Amongthem,H(3)representsthecubeofH.HistheheightoftheI-shape,Bisthebottomwidth,h6. 53700×300×13×24235.5185201000576029.3108007226.78HWHNW-sectionModulusCategoryx-xaxisy-yaxissymbol：h-height;height;height;i-radiusofgyration;i-radiusofgyration;b-width;b-width;b-width;sx;sx-areamentofsection。 t1—web