IDENTIFICATION AND VALIDATION OF NATURAL PERIODS AND MODAL DAMPING RATIOS FOR SEISMIC DESIGN AND BUILDING CODE

Ninety-four buildings, with a total of 1045 distinct seismic event and building direction records, were selected from the CSMIP database to identify modal quantities (i.e., natural periods and equivalent viscous damping ratios). The selected buildings include steel and reinforced concrete moment resisting frames (i.e., SMRF, and RCMRF), reinforced concrete walls (RCW), concentrically braced frames (CBF), eccentrically braced frames (EBF), masonry walls (MAW), precast concrete walls (PCW), reinforced concrete tilt-up bearing walls (RCTUW), unreinforced masonry (URM), and WOOD. Simplified and practical equations for modal quantities along with variation of such parameters to structural system types, building height, amplitude of excitation, and system identification technique for a subset of buildings were reliable data was available are presented.

[1]  Anil K. Chopra,et al.  PERIOD FORMULAS FOR CONCRETE SHEAR WALL BUILDINGS , 1998 .

[2]  Anil K. Chopra,et al.  Period formulas for moment-resisting frame buildings , 1997 .

[3]  Mehmet Çelebi,et al.  Blind modal identification of structures from spatially sparse seismic response signals , 2013 .

[4]  Xxyyzz,et al.  Minimum Design Loads for Buildings and Other Structures , 1990 .

[5]  Dionisio Bernal,et al.  Viscous Damping in Inelastic Structural Response , 1994 .

[6]  Ali Kocak,et al.  Effects of Infill Wall Ratio on the Period of Reinforced Concrete Framed Buildings , 2011 .

[8]  Ali M. Memari,et al.  Full-scale dynamic testing of a steel frame building during construction , 1999 .

[9]  Yukio Tamura,et al.  Damping Evaluation Using Full-Scale Data of Buildings in Japan , 2003 .

[10]  R. Sharpe.  Tentative Provisions for the Development of Seismic Regulations for Buildings , 1994 .

[11]  Salma Mozaffari Kojidi,et al.  DAMPING IDENTIFICATION IN BUILDINGS FROM EARTHQUAKE RECORDS , 2012 .

[12]  A. P. Jeary,et al.  Random damping in buildings and its AR model , 1999 .

[13]  Richard W. Longman,et al.  Identification of linear structural systems using earthquake‐induced vibration data , 1999 .

[14]  Young-Soo Chun,et al.  Experimental formula for the fundamental period of RC buildings with shear-wall dominant systems , 2000 .

[15]  Yukio Tamura,et al.  Amplitude Dependency of Damping in Buildings , 2008 .

[16]  George D. Hatzigeorgiou,et al.  Evaluation of fundamental period of low‐rise and mid‐rise reinforced concrete buildings , 2013 .

[17]  Li-Ling Hong,et al.  Empirical formula for fundamental vibration periods of reinforced concrete buildings in Taiwan , 2000 .

[18]  Sergio Lagomarsino,et al.  Forecast models for damping and vibration periods of buildings , 1993 .

[19]  B. De Moor,et al.  Two subspace algorithms for the identification of combined deterministic-stochastic systems , 1992, [1992] Proceedings of the 31st IEEE Conference on Decision and Control.

[20]  A. G. Davenport,et al.  Damping in Tall Buildings: Its Variability and Treatment in Design , 1986 .

[21]  Eungsoo Kim,et al.  Evaluation of building period formulas for seismic design , 2010 .

[22]  T A Wyatt.  MECHANISMS OF DAMPING , 1977 .

[23]  Khan Mahmud Amanat,et al.  A rationale for determining the natural period of RC building frames having infill , 2006 .

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

[25]  Tracy Kijewski-Correa,et al.  Predictive Models for Damping in Buildings: The Role of Structural System Characteristics , 2008 .

[27]  Lennart Ljung,et al.  System Identification: Theory for the User , 1987 .

[28]  A. P. Jeary,et al.  Damping in structures , 1997 .

[29]  Marshall Lew,et al.  AN ALTERNATIVE PROCEDURE FOR SEISMIC ANALYSIS AND DESIGN OF TALL BUILDINGS LOCATED IN THE LOS ANGELES REGION 2008 Edition , 2008 .