碟形弹簧在开合屋盖建筑结构中的应用

43220131BuildingStructureVol．43No．2Jan．2013200233、、、。、。TH12TU393．3A1002-848X201302-0048-03ApplicationofdiscspringintheretractableroofofarchitecturalstructureDengWeipingYangHuzhenChenGuodongChangjiangJinggongSteelBuildingGroupCo．Ltd．Shanghai200233ChinaAbstractDiscspringisatypeofcompressionspringasitsadvantagesofsimplestructuresmallinstallationdimensionslargebearingcapacityandvariablestiffnessdiscspringhasbeenusedinindustrialproductswidely．Theapplicationofdiscspringintheadjustmentmechanismofretractableroofforlarge-spanmovablesteelstructurewaselaborated．Thecalculationandtypeselectionofthediscspringwerediscussedcombiningwiththeloadofretractableroof．Keywordsdiscspringretractableroofad[e-mail]。0。、、1。、。1、、。。、、、2。。1233m/min4、。2、。、、。1、23、。、、。33.1432．3。。1。、、。。12。。2。3.2。32。Ⅰ。Ⅰ、。、。3.3、、。33。Ⅱ。Ⅱ。4。0～1350kN±30mm500mm×500mm×600mm。394201343。490kN980kN50CrVA4A3420×212×22×31-C2。145。1D/mmd/mmt/mmh0/mmH0/mmf≈0．75h0P/Nf/mmH0－f/mmσⅡσⅢ/MPa420212229315483086.7524.251118Ddt、、h0H0PfPσⅡσⅢⅡⅢ5。5Pc=4E1－μ2×t'3h0'K1D2K241E=2.06×105MPaμ=0．3t'=20．25mmh0'=H0－t'K4=－C1/2+C1/()22+C槡槡2C1=t'()t214×H0t－t't+()3458×H0t－t't+()38C2=C1t'()t3532H0t－()12+[]1t'=20．251H0tC1=13.85C2=18．25K4=1．1。K1=1π×C－1CC+1C－1－2lnCC=D/d=2K1=0.69。K1～K4CC1C2。Pc=803．5kN。P1=245kNP2=490kNP1/Pc=0．30P2/Pc=0．61。4AK4h0'/t'=0．583P1/Pc=0．30P2/Pc=0.61f1/h0'=0．26f2/h0'=0．56f1=0.26h0'≈2．80mmf2=0．56h0'≈6．02mm。i=fz/f2=60/6．02=9．9710i=1020fz。Hz=iH0+n()－1[]t'=512．5mmn=2。490kN980kNH1=Hz－if1=484．5mmH2=Hz－if2=452．3mm。。C=2K4h0'/t'=0．5834ⅡⅢⅡσⅡ=－4E1－μ2×t'2K1D2K4ft'K4K2h0't'－f2()t'－K[]32K1=0．69K4=1．1K2=6π×C－1/lnC－1lnC=1．22K3=3π×C－1lnC=1．38。2f1=2．80mmσⅡ=352．5MPa=σⅡminf2=6．02mmσⅡ=866．6MPa=σⅡmaxⅡσaⅡ=σⅡmax－σⅡmin=514．1MPaⅢσⅢ=－4E1－μ2×t'2K1D21Cf[t'K4K2－2K3h0't'－f2()t'－K]3Ⅲ5905432．8。16.34s17.84s。851。2。3。4。1MALHOTRAPK．Dynamicsofseismicimpactsinbase-isolatedbuildingsJ．EarthquakeEngineering＆StructuralDynamics1997268797-813．2TSAIHC．Dynamicanalysisofbase-isolatedshearbeamsbumpingagainststopsJ．EarthquakeEngineering＆StructuralDynamics1997265515-528．3．LRBJ．200931232-39．4．KelvinJ．200926SⅡ245-248．5．J．2008284161-167．6．LRBJ．201027SⅡ298-302．7．J．200740510-16．8．J．2009267163-169．9．J．201120142-46．50f1=2．80mmσⅢ=455MPa=σⅢminf2=6．02mmσⅢ=918．2MPa=σⅢmaxⅢσaⅢ=σⅢmax－σⅢmin=463．2MPaⅡⅡ。σⅡmin=352．5MPa4N=5×105σⅡmax=900MPaσraⅡ=900－352．5=547．5MPa＞σaⅡ5×105。51、、。2、。3。1．J．200623417-20．2．J．200232929-32．3．J．200838916-19．4．M．2008．95