倒塌分析在某500m级超高层建筑抗震设计中的应用_陆新征_杨蔚彪_卢啸_齐五辉_

4523201512BuildingStructureVol．45No．23Dec．2015500m*1232221110008421000453100044。。500m。。。TU318+．2TU973A1002-848X201523-0091-07Applicationofcollapseanalysisinseismicdesignofasuper-tallbuildingover500mLuXinzheng1YangWeibiao2LuXiao3QiWuhui2LiuBin2ZhangWankai2YeLieping11DepartmentofCivilEngineeringTsinghuaUniversityBeijing100084China2BeijingInstituteofArchitecturalDesignBeijing100045China3SchoolofCivilEngineeringBeijingJiaotongUniversityBeijing100044ChinaAbstractInrecentdecadesuper-tallbuildingsdevelopquicklyinChinaandtheseismicsafetyisattachedgreatimportance．Collapseanalysisbasedonelasto-plasticcalculationisanimportantmethodtostudythestructuralseismicsafetywhichiswidelyusedintheregularstructuraldesigns．Howevertheapplicationofthismethodinsuper-tallbuildingsisrare．Hencebasedontheseismicdesignofasuper-tallbuildingover500mcollapseanalysiswasadoptedtoinvestigatetheseismicdesignmethodandtheimprovementmeasuressystematically．Themajorprocessesduringtheengineeringdesignwerecoveredincludingthestructuralsystemdesignparametersanddesignschemesofspecificmembers．Theresearchresultsshowthatcollapseanalysiscanhelpimprovethestructuralseismicdesignenhancetheseismicperformanceandcontroltheconstructioncost．Theresearchcanprovidereferenceforseismicdesignofsimilarsuper-tallbuildings．Keywordssuper-tallbuildingseismicdesigncollapseanalysisminimumshearforcecoefficient*514080342015BAK17B002014JBM0782015ＲC057。[e-mail]。0500m171。。、、。。FEMAP6952FEMAP6952ASCEIBC3。“3·11”4。2015、。500m。11。500m710885。12、67。。MSC．Marc98758。Ｒayleigh5%。、。。8。9“”。33.12。2“++”“++”2a。145159。58。“++”2b。78。8。、7.38s7.69s。1。294523．500m3/t1753720.3652937.929074.465408.16300.0100782.5669381.6565211.223934.773935.76093.0103963.4－11.19%－13.44%－17.68%13.04%－3.29%3.16%=－/。。111.2%13.44%18%、13%3.16%。3.2。。ElCentro1940PGA400510620cm/s23。31457。85858。3。。3.3FEMAP695222ElCentro1940IDA9。IDA。Pc=ncol/ntotncolntot。Pc。Pc。39201545。FEMAP6952CMＲCMＲCMＲ=IMCTIMMT145IMCT50%IMMT。PGA0.4g50%PGA2.35g2.70gCMＲ5.886.75。14.8%11.2%。。44.1。Vmin10。VtVmin。Vt0.0173G11Vmin=0.024G。、、、Vt。10。Vmin325。211ABC3.3ABC34。4ABCAB1.5AB2.6BCBC。494523．500mABC3ABC/m6.5×6.55.2×5.24.8×4.8C70C70C70/%105.95.9/m1.51.21.2C60C60C60/%966/%0.250.50.51/m3.4×1.7×0.015×0.011.8×0.9×0.01×0.011.8×0.9×0.01×0.01Q390Q390Q390Q345。ABC4ABC/m3654083507731761/t470701648214017/m3595245106451101/t333761542315132/t453212361236/t3072995995/m31249328614182862/t8805034136313804.2。752。6A4。BC61。7。ABCABCA。。CMＲ4.533.913.66。ABCBC1.161.24。B。55.166778～95。46。78～958。。8B1B2。B178～95B278～955。78～95。5920155B1B2T1/s7.5137.458XT2/s7.4527.399YT3/s2.5872.5734.279。B2B1111/100。。9B1B25.27B1B210。B18578～95。B25678～95。7B2CMＲB112.7%0.1%78～95。6500m111.2%14.8%。2。。10B1B230.1%。、。。1CTBUHHeightCriteria．CouncilontallbuildingsandurbanhabitatEB/OL．2015-03-08．http//694523．500mskyscrapercenter．com/interactive-data．2FEMAP695QuantificationofbuildingseismicperformancefactorsS．FederalEmergencyManagementAgencyWashingtonD．C．2009．3ATC-72ModelingandacceptancecriteriaforseismicdesignandanalysisoftallbuildingsPEEＲ/ATC-72-1S．AppliedTechnologyCouncilＲedwoodCityCA2010．4NAKASHIMAMLINXCKATOMetal．NeedforcharacterizationofcollapsemargininresponsetoearthquakesbeyondseismiccodespecificationsC//Proceedingsofthe10thNationalConferenceinEarthquakeEngineeringEarthquakeEngineeringＲesearchInstituteAnchorageAK2014．5．J．20143581-7．6．J．2007241276-81．7．ＲCJ．200942351-56．8．J．2010271164-70．9．IDAJ．201032113-18．10．J．201435588-95．11GB50011—2010S．2010．《》201524+6432/360/201423+61345/201320+64、6、8、18300/200912+6144/200812+6120/200712+6120/201420153400201320143400201220132200201020113160200920103160200813020071302006952005952004702003702006～2010200/2001～20051991～20001975～1990150/1975～20104530201520153002015500201440020144002013300201350020123002012———2002011150110908001310606。《》、。010-57368777。[e-mail]。Email。79