A wind load and structural parameters estimation approach for building structures

This study presents a novel algorithm for simultaneous estimation of unknown wind load and structural parameters from wind-induced acceleration responses. It integrates an unbiased minimum variance input estimation and the recursive least squares estimation concept. The inverse identification approach includes four parts: time update, estimation of unknown wind load, measurement update and estimation of unknown parameters. A ten-story shear building is chosen as an example to validate the feasibility and accuracy of the proposed algorithm. Numerical simulation results indicate that the proposed method can be used to estimate wind load and structural parameters from wind induced structural acceleration responses accurately and effectively.