Full-scale tests of wind effects on a long span roof structure

Full-scale measurements are regarded as the most reliable method to evaluate wind effects on large buildings and structures. Some selected results are presented in this paper from the full-scale measurement of wind effects on a long-span steel roof structure during the passage of Typhoon Fanapi. Some field data, including wind speed and direction, acceleration responses, etc., were continuously and simultaneously recorded during the passage of the typhoon. Comprehensive analysis of the measured data is conducted to evaluate the typhoon-generated wind characteristics and its effects on a long-span steel roof. The first four natural frequencies and their vibration mode shapes of the Guangzhou International Sports Arena (GISA) roof are evaluated by the stochastic subspace identification (SSI) method and comparisons with those from finite element (FE) analysis are made. Meanwhile, damping ratios of the roof are also identified by the SSI method and compared with those identified by the random decrement method; the amplitude-dependent damping behaviors are also discussed. The fullscale measurement results are further compared with the corresponding wind tunnel test results to evaluate its reliability. The results obtained from this study are valuable for academic and professional engineers involved in the design of large-span roof structures.

[1]  Yukio Tamura,et al.  Damping in Buildings and Estimation Techniques , 2013 .

[2]  Aiqun Li,et al.  Influence of structural parameters on dynamic characteristics and wind-induced buffeting responses of a super-long-span cable-stayed bridge , 2014, Earthquake Engineering and Engineering Vibration.

[3]  Shuenn-Yih Chang.  Nonlinear performance of classical damping , 2013, Earthquake Engineering and Engineering Vibration.

[4]  Junichi Yamashita,et al.  Full-scale measurements of wind-induced responses on the Hamamatsu ACT Tower , 1998 .

[5]  A. P. Jeary,et al.  Damping in tall buildings—a mechanism and a predictor , 1986 .

[6]  A. P. Jeary,et al.  Field measurements of wind effects on the tallest building in Hong Kong , 2003 .

[7]  Dikai Liu,et al.  Using neural networks to model and predict amplitude dependent damping in buildings , 1999 .

[8]  Dikai Liu,et al.  Damping in buildings : its neural network model and AR model , 2000 .

[9]  Yiqing Xiao,et al.  Field measurements of typhoon effects on a super tall building , 2004 .

[10]  Genda Chen,et al.  Suboptimal Rayleigh damping coefficients in seismic analysis of viscously-damped structures , 2014, Earthquake Engineering and Engineering Vibration.

[11]  Kenny C. S Kwok,et al.  Full-scale measurements of wind-induced response of an 84 m high concrete control tower , 1996 .

[12]  Hongtao Wang,et al.  Structural modal parameter identification and damage diagnosis based on Hilbert-Huang transform , 2014, Earthquake Engineering and Engineering Vibration.

[13]  A. P Robertson,et al.  Comparisons of full-scale and wind-tunnel measurements of wind loads on a free-standing canopy roof structure , 1986 .

[14]  Theodore Stathopoulos,et al.  Mean wind pressures on flat roof corners affected by parapets: field and wind tunnel studies , 1999 .

[15]  Yukio Tamura,et al.  Effectiveness of tuned liquid dampers under wind excitation , 1995 .

[16]  David Surry,et al.  Comparisons of wind-tunnel and full-scale surface pressure measurements on low-rise pitched-roof buildings , 1991 .

[17]  N. G. Pitsis,et al.  Further full-scale and model pressure measurements on a cantilever grandstand , 1991 .

[18]  Chuhan Zhang,et al.  Accuracy of the half-power bandwidth method with a third-order correction for estimating damping in multi-DOF systems , 2013, Earthquake Engineering and Engineering Vibration.

[19]  Jack E. Cermak,et al.  Full- and model-scale cladding pressures on the Texas Tech University experimental building , 1992 .

[20]  N. G. Pitsis,et al.  Model/full-scale pressure measurements on a grandstand , 1986 .

[21]  Dikai Liu,et al.  Damping of tall buildings: its evaluation and probabilistic characteristics , 1999 .

[22]  Ming Gu,et al.  Direct identification of flutter derivatives and aerodynamic admittances of bridge decks , 2004 .

[23]  Kishor C. Mehta,et al.  Full/model-scale comparison of surface pressures on the Texas Tech experimental building , 1996 .

[24]  Carlos Sousa Oliveira,et al.  A European digital accelerometric database: statistical analysis of engineering parameters of small to moderate magnitude events , 2014, Earthquake Engineering and Engineering Vibration.

[25]  R. P. Hoxey,et al.  A full-scale study of the geometric parameters that influence wind loads on low rise buildings , 1983 .

[26]  H. W. Tieleman,et al.  Model/full scale comparison of pressures on the roof of the TTU experimental building , 1996 .

[27]  A. P. Jeary,et al.  The description and measurement of nonlinear damping in structures , 1996 .

[28]  P. Van Overschee,et al.  Subspace algorithms for the stochastic identification problem , 1991 .

[29]  Alireza Azarbakht,et al.  Ground motion record simulation for structural analysis by consideration of spectral acceleration autocorrelation pattern , 2014, Earthquake Engineering and Engineering Vibration.

[30]  Jing Sun,et al.  Identification of model structure parameters via combination of AFMM and ARX from seismic response data , 2014, Earthquake Engineering and Engineering Vibration.

[31]  W H Melbourne.  PROBABILITY DISTRIBUTIONS ASSOCIATED WITH THE WIND LOADING STRUCTURES , 1977 .

[32]  Guido De Roeck,et al.  REFERENCE-BASED STOCHASTIC SUBSPACE IDENTIFICATION FOR OUTPUT-ONLY MODAL ANALYSIS , 1999 .

[33]  J. D. Holmes,et al.  Wind Loading of Structures , 2001 .

[34]  Dikai Liu,et al.  Evaluation of wind effects on a supertall building based on full-scale measurements , 2000 .

[35]  Bassam A. Younis,et al.  Geometric parameters that affect wind loads on low-rise buildings: full-scale and CFD experiments , 1993 .

[36]  Y. Tamura,et al.  Evaluation of amplitude-dependent damping and natural frequency of buildings during strong winds , 1996 .

[37]  G. Solari,et al.  Probabilistic 3-D turbulence modeling for gust buffeting of structures , 2001 .

[38]  Virote Boonyapinyo,et al.  Data-driven stochastic subspace identification of flutter derivatives of bridge decks , 2010 .

[39]  Qiusheng Li,et al.  Full-scale monitoring of typhoon effects on super tall buildings , 2005 .