Abstract
This paper describes the local parameter (story stiffness and damping coefficient) estimation method directly using absolute acceleration records. This method consists of 2 steps. The first step estimates all modal parameters by absolute acceleration pulse response function method. In the second step, story stiffness and damping coefficients are evaluated by the theory relationship between modal and local parameters. With this method, not only the local parameters but also those probabilistic errors can be easily evaluated. In addition, it is possible to evaluate the frequency-dependent properties of the local parameters. The applicability of the method is clarified by both numerical simulation data and experimental data. It is found that the method exactly estimated the story parameters, including those frequency dependencies.
