Simple Procedure for Preliminary Design of （简单的程序的初步设计）.pdfVIP

13th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 2021 SIMPLE PROCEDURE FOR PRELIMINARY DESIGN OF STRUCTURAL DAMPERS 1 2 3 Wei Liu , Mai Tong , George C. Lee SUMMARY In the preliminary design of the structure, the option of adding supplemental damper needs to be compared with other protective design options to achieve the performance objective. The trial and error process of using sophisticated computer model and selecting damper size is not practical. There is a need to efficiently obtain the structural damper design with cost estimation, construction method and interference with the existing function. In this paper, we propose a simple procedure for the design of damping device on a given structure based on its performance objectives. This procedure is primarily based on the current performance-based design guidelines. It simplifies the structure into lumped mass model for preliminary design purpose. It also gives a simple stiffness estimation method and verified it with several building structures. The approximate damping is obtained and the sizing of the device can be selected from the standard damper products, based on the structural properties and the seismic hazard. A design example of a typical mid-rise building is provided. It shows that the proced