Comparison of Ambient Vibration Response of the Runyang Suspension Bridge under Skew Winds with Time-Domain Numerical Predictions

Existing buffeting theories and methods for dealing with skew winds are summarized. A modified version of the mean wind decomposition method is described that directly uses wind monitoring data from structural health monitoring systems. A method for time-domain buffeting analysis is presented and implemented in ANSYS, in which self-excited forces are modeled as elemental aeroelastic stiffness and damping matrices by element Matrix27. The entire numerical procedure is implemented in MATLAB and ANSYS, and the buffeting responses can be conveniently computed with very concise input data. This method is applied to the buffeting analysis of the Runyang Suspension Bridge during Typhoon Matsa. The measured data of wind characteristics are used to predict the buffeting responses of the bridge with a finite-element model. The predicted buffeting responses are compared with those from field measurements. A reasonably good agreement between the calculation and the measurement validates the effectiveness of the metho...

[1]  Hiroshi Tanaka,et al.  Bridge buffeting due to wind with yaw angles , 1992 .

[2]  A. Kareem,et al.  TIME DOMAIN FLUTTER AND BUFFETING RESPONSE ANALYSIS OF BRIDGES , 1999 .

[3]  Masaru Matsumoto.  Flutter Analysis of Long-Span Bridges , 1994 .

[4]  Haifan Xiang,et al.  SIMULATION OF STOCHASTIC WIND VELOCITY FIELD ON LONG-SPAN BRIDGES , 2001 .

[5]  John H G Macdonald,et al.  Evaluation of buffeting predictions of a cable-stayed bridge from full-scale measurements , 2003 .

[6]  Yl L. Xu,et al.  Buffeting response of long-span cable-supported bridges under skew winds. Part 2: case study , 2005 .

[7]  Nicholas P. Jones,et al.  Multimode coupled flutter and buffeting analysis of the Akashi-Kaikyo bridge , 1999 .

[8]  Robert H. Scanlan,et al.  The action of flexible bridges under wind, II: Buffeting theory , 1978 .

[9]  N. P. Jones,et al.  Identification of aeroelastic parameters of flexible bridges , 1994 .

[10]  A. Kareem,et al.  AERODYNAMIC COUPLING EFFECTS ON FLUTTER AND BUFFETING OF BRIDGES , 2000 .

[11]  Hiroshi Tanaka,et al.  Buffeting analysis of long span bridges to turbulent wind with yaw angle , 1991 .

[12]  Virote Boonyapinyo,et al.  Advanced aerodynamic analysis of suspension bridges by state-space approach , 1999 .

[13]  Alberto Zasso,et al.  Humber bridge full scale measure campaigns 1990-1991 , 1994 .

[14]  Hiroshi Katsuchi,et al.  Full-Scale Measurement of Akashi-Kaikyo Bridge during Typhoon , 2001 .

[15]  A. H. Namini,et al.  Analytical modeling of flutter derivatives as finite elements , 1991 .

[16]  W. Sears,et al.  Some Aspects of Non-Stationary Airfoil Theory and Its Practical Application , 1941 .

[17]  Holger Svensson,et al.  ANALYTICAL AERODYNAMIC INVESTIGATION OF CABLE-STAYED HELGELAND BRIDGE , 1992 .

[18]  Yozo Fujino,et al.  System identification of suspension bridge from ambient vibration response , 2008 .

[19]  J. Kaimal,et al.  Spectral Characteristics of Surface-Layer Turbulence , 1972 .

[20]  C. Scruton,et al.  Wind Effects on Structures , 1970 .

[21]  Robert H. Scanlan,et al.  BRIDGE BUFFETING BY SKEW WINDS IN ERECTION STAGES , 1993 .

[22]  Pedro Albrecht,et al.  Finite Element‐Based Flutter Analysis of Cable‐Suspended Bridges , 1992 .

[23]  Jm M. Ko,et al.  Fully coupled buffeting analysis of Tsing Ma suspension bridge , 2000 .

[24]  Nicholas P. Jones,et al.  COUPLED FLUTTER AND BUFFETING ANALYSIS OF LONG-SPAN BRIDGES , 1996 .

[25]  D. Delaunay,et al.  Comparison of full-scale measurement and computation of wind effects on a cable-stayed bridge , 1994 .

[26]  Ledong Zhu.  Buffeting response of long span cable-supported bridges under skew winds : field measurement and analysis , 2002 .

[27]  Hao Wang,et al.  Field measurement on wind characteristic and buffeting response of the Runyang Suspension Bridge during typhoon Matsa , 2009 .

[28]  Wei-Xin Ren,et al.  Baseline finite element modeling of a large span cable-stayed bridge through field ambient vibration tests , 2005 .

[29]  Yi-Qing Ni,et al.  Flutter analysis of long-span bridges using ANSYS , 2007 .

[30]  Yozo Fujino,et al.  Structural identification of a nonproportionally damped system and its application to a full-scale suspension bridge , 2005 .

[31]  A. G. Davenport,et al.  A statistical approach to the treatment of wind loading on tall masts and suspension bridges , 1961 .

[32]  Wei-Xin Ren,et al.  Structural Finite Element Model Updating Using Ambient Vibration Test Results , 2005 .

[33]  G. Deodatis.  Simulation of Ergodic Multivariate Stochastic Processes , 1996 .

[34]  Robert H. Scanlan,et al.  Motion of Suspended Bridge Spans under Gusty Wind , 1977 .