Full Scale Validation of the Predicted Response of Tall Buildings : Preliminary Results of Chicago Monitoring Project

The wind-induced responses of three tall buildings in Chicago are being measured and compared to wind tunnel tests and finite element models. Preliminary results from only one of the buildings are presented herein, due to space limitations. These findings indicate amplitude dependent damping slightly lower than assumed in the design phase, but fundamental frequencies consistent with predicted values. Preliminary analysis of selected data gathered to date indicates that the measured full-scale accelerations are consistent with the wind tunnel predictions.