天津文化中心大剧院抗扭桁架蒙皮效应分析

43620133BuildingStructureVol．43No．6Mar．2013*300072。、3、。。。TU393.3TU323.4A1002-848X201306-0010-04AnalysisonstressedskindiaphragmontorsiontrussofTianjinGrandTheaterinTianjinCulturalCenterWangXiaodunKongCuiyanChenZhihuaNiuBenSunTaoSchoolofCivilEngineeringTianjinUniversityTianjin300072ChinaAbstractBecauseofthearchitecturalrequirementsomecantilevertrussesofTianjinGrandTheaterarejustconnectedwithhugetrusseswithouttheextensiontrusses．Consequentlythehugetrussesshouldbedesignedtobearthetorque．Hugetrusscoveredwithcorrugatedplateswhichisseldomappliedbeforeisdesigned．Thestressedskindiaphragmwasutilizedtobearthetorque．Thebasicconceptofstressedskindiaphragmwasstatedandthemethodofstressedskindiaphragmontorsiontrusswasputforward．Bythecomparisonamongtrusswithoutsteelplatestrusswithflatsteelplatesandthetrusswithcorrugatedsteelplatesthedisplacementandinternalforceofthestructurewereanalyzed．Thebehaviorofthestructurecanbeimprovedwhenthethinsteelplatescoveredthetruss．Eventhoughtheinternalforceoftrusswithflatsteelplatesislowerthanthatwithcorrugatedsteelplatesthecorrugatedsteelplateswithhomogeneousdeformationcanavoidthelocaldeformation．Keywordstorsiontrussedstressedskindiaphragmtrusswithoutsteelplatetrusswithflatsteelplatetrusswithcorrugatedsteelplate*11ZCZDSF04800。[e-mail]。01。2。。。1。。33000m2235m、160m28、50、。66.7m33.6m3。75.6m、5～6m。、1。22.1。75.6mY436．18.4mX⑩5.174m、瑏瑡6.001m。、⑩瑏瑡2。30Q345C1。2、1/mm/mm500×300×10×18500×500×40×50500×300×12×24500×500×14×20500×300×14×35300×300×16×16500×300×14×30400×400×30×30500×400×14×35500×400×25×30500×500×60×60500×300×18×30500×500×14×25500×300×16×16500×500×12×18500×300×12×16500×500×14×28500×300×18×18500×500×30×40500×400×25×30500×300×12×20300×300×12×16300×300×20×25400×300×30×35300×300×12×16300×300×16×20300×300×20×25500×300×12×12400×350×30×40350×300×30×35100、、3。。34、35。2。5、2.2MIDAS/Gen。。1120134。。6。/mm2⑩瑏瑡1212141012.5312.5314.6210.446。。⑩。瑏瑡。、、。。2.32.3.1。Y⑩瑏瑡。、7。33108.8mm。。383.9%79.3%。、32.3mm。55.5%24.7%。7、3/mm108.848.484.1、/mm32.35.26.7—55.5%24.7%—83.9%79.3%=－－/×100%。Y。8。2.3.2⑩、3、。、39。0.600.25。21436．893。、4。－167.8MPa。130.0MPa。、－150.9MPa41.9MPa。－149.9MPa56.9MPa。－67MPa、25MPa、－167.8MPa41.9MPa。。、/MPa4－167.8－150.9－149.9130.041.956.9－59.6－53.6－61.538.934.539.92.3.3⑩瑏瑡34。。⑩瑏瑡3。31、、。2、、。3。4。9131436．、。、、。。、。2。。fspk1fspk1=mwRawApw+βw1－mwfspk02mw0.05920.0277RawApwβw0.88fspk01。fspk1405kPa④、513kPa⑤fspk1229kPa④、343kPa⑤。22.14MPa、43.0mm47.2%。19.78MPa27.5mm29.2mm。±0.0010.96mm3.2mm。61。。2。α1.25～1.34。3、。16.7%。、。4、。、。1．CFGM．2．2006212-333．2．J．199963-10．3．J．2009301163-168．4．J．199828538-42．5JGJ79—2002S．2002．6DGJ32/J12—2005S．2005．7．J．200331111285-1289．8．J．200939S2238-245．9．J．200223685-9094．10．J．2003243339-343．11．M．2．200770-72．131．、D．2004．2．J．200232229-33．3．J．2012425119-124．4．D．2006．19