Abstract
Among many kinds of passive energy dissipation systems, recently velocity-dependent dampers have been used for reducing seismic response of building frames. It is practical to study using simple and accurate analytical model in determining damper quantity and locations in seismic design. A series of dynamic response analyses are carried out using simple or accurate types of modeling for a 8 stories steel frames. This paper presents a comparison of differences caused by modeling technique and effects of damper quantity on seismic performance based on complex first mode. A simplified calibration method of analytical model based on effective damper deformations, and static convergence calculation method for calculating effective damper deformations are also proposed.
