1、外文资料翻译 Contents lists available at ScienceDirect Journal of Constructional Steel Research Seismic analysis of the worlds tallest building Hong Fan a,b, Q . S . Li a, A l e x Y . T u a n c, Lihua Xud a Department of Building and Construction, CityUniversity of Hong kong, Hong kong b China Nuclear Pow
2、er Design Company, Shenzhen 518026, China c Department of Civil Engineering, Tam kangUniversity, Taipei, Taiwan d School of Civil Engineering, Wuhan University, HubeiWuhan 430072, China a r t i c l e i n f o Article history:Received 13 March 2008Accepted 8 October 2008 keywords:Super-tall buildingMe
3、ga-frame structureFinite element modelingSeismic analysisDynamics response Shaking table test a b s t r a c t Taipei 101 (officially known as the TaipeiFinancialCenter) with 101stories and 508 m height, located inTaipei where earthquakes andstro -ng typhoons are common occurrences, is currently the
4、tallestbuildingin the world. The great height of the building , the specialgeog- raphic an -d environmental conditions, notsurprisingly, presented one of the gre -atest challenges for structural engineers. In particular, its dynamicpe -rformance under earthquake or wind actions requiresinte- nsive r
5、esearc -h. The structure of the buildingis a mega-frame system composed of concrete filled steel tube (CFT) columns, steel brace core and belttrus -ses which are combined to resist vertical and lateral loads. In this stud -y, a shaking table test wasconducted to determine t he con- stitutive rel- at
6、ionships and finite element types for the CFT columnsa - nd steel mem -bers for establishing the finite element (FE) model of the tall building. Then, the seismicresponses of the super -tall building we- re numerically investigated. An earthquake spectrum generatedfor Ta -ipeiBasin was a -dopted to
7、calculate the lateral displacements and distributions of inter -ior columnforces. Furthermore, time -history an- alyses of elastic and in -elastic seismic response were carried outusing scale d accelerograms representing earthquake events with return perio - ds of 50-year, 100-year,and 950-year, res
8、pectively. The computational results indicate that the super-tall building with the megaframe system possesses substantial re -serve strength, and the high-rise structure wo- uld satisfy the designre- quirements under severe seismic events. The output of this study is ex -pected to be ofconsiderable
9、interest and practical use to profession -nals and researchers involved in the design of super-tall buildings. 1. Introduction Owing to the growing use of high-strength materials and advanced co- nstruction techniques, building structures have becomemore and more flexible and taller. The increasing
10、height of moderntall buildings po- sed a series of challenges for structural engineers.In the design of such a tall building, the structural system mustmeet three major require- ments: strength, rigidity, and stability 1.As is well known, the stre - ngth requirement is the dominant factorin the desi
11、gn of low -rise structures. However, as building height increases, the rigidity and stab - ility requirements become more im -portant, and they are often the dom - inant factors in the structural design. Especially under lateral loads, interior forces are quite vari able and increase rapidly with in
12、cre ases in height, and lateral deflection may vary as the fourth power of the height of a building 2,and structural dynamic behavior is thus one of the most importantdesign considerations in the design of a modern tall building Taipei 101, rising 508 m above the city of Taipei, earns the titleof th
13、e tallest building in the world. Its dynamic responses due to wind,ea- rthquake and other extraordinary loads are of great concern. As Taiwan is located in one of the most active seismic regions in the world, this supertall building may be susceptible to damage caused by strong ear t- hquakes. These
14、 features make a detailed study on the structural perf- ormance of the worlds highesttall building under earthquakeexcit- ations of particular importance and necessity. Numerous investigations on seismic behavior of tall buildingsHavebeen carried out in the past； in particular shaking tabl e testspl
15、ay an im- portant role in earthquake-resistant design of structures,analysis of se- ismic responses and failure mechanisms 35. Onthe other hand, the finite ele ment method (FEM) is a po werfultool for structural analysis of tall buildings. Fan and Long 6adopted spline elements in the ana- lysis of t
16、all buildings. In theirmethod, the element displacements are interpolated with s plinefunctions and accurate results could be achi- eved with lowerorderfunctions and a few degrees of freedom. Take- batake et al. 7presented a simplified analyt ical method for the pre- liminarydesign of doubly symmetr
17、ic s ingle and double frame-tubes in- high-rise structures by replacing a tube with an equivalent rod With consideration of the effect of bending, transverse sheardefor - mation, shear-lag and torsion. Li et al. 8,9 proposed finitesegment a- pproaches for estimating the dynamic characteristics of ta
18、ll buildings. Recently, Li and Wu 10 established seven 3-D FE models for a78-st- ory super-tall building, and numerical results of the structural dynami c characteristics were compared with their field measurements to identify the FEM modelingerrors for the purpose of updating the FEM models. Ventur
19、aand Schuster 11 presented a numerical study on estimation of dynamic characteristic of a 30 -storey RC building. A reducedorder con- tinuum model was proposed by Chajes et al. 12 toconduct dynamic analysis of a 47-storey steel-framed buildingand correlate the numeri- cal results with those from measured responses during an earthquake. Pan et al. 13 and Brownjohnet al. 14 presented numerical studies on dynamic responses ofthe tallest building in Singapore wi th correlation
