Application of a new method to determine the modal parameters of tall buildings under random wind loading
conference paper
Modal properties of high rise buildings are mostly derived from measurements on existing buildings under dynamic random wind loading. Measured accelerometer signals are translated into values for the natural frequency and damping. In order to obtain reliable values for the modal properties, the distillation of these parameters from the measured signal is a very important step. In this paper, two existing methods for performing that analysis are compared to a new theoretical method that was recently developed and tested in order to find the modal properties of steel plates (see Mohanty and Rixen, 2004). In this paper this method is applied to acceleration measurements in buildings in order to see if this method is preferable over those more commonly used. Given the experiences with the existing methods, a new method is proposed that turns out to be a very stable and reliable method.
Topics
TNO Identifier
534065
ISBN
9789076019314
Publisher
University of Southampton, Institute of Sound Vibration and Research
Source title
Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011
Editor(s)
Lombaert, G.
Muller, G.
Roeck, G. de
Degrande, G.
Muller, G.
Roeck, G. de
Degrande, G.
Pages
2757-2763
Files
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