Title |
Effect of Tuned Mass Dampers on High-Rise Wall-Frame Structures |
Abstract |
Assuming that structural systems respond primarily in their fundamental mode and that the fundamental mode shape does not change due to the addition of a damper, the equation of motion of a structure with and without a tuned mass damper can be reduced to that of a 2-DOF and a 1-DOF system, respectively. Most of optimal TMD properties proposed refer to cases when the response quantity of interest is contributed primarily by the first mode.Consequently additional study may be needed to find the effect of optimal passive tuned mass dampers on higher modes and hence on response quantities such as structural control effect ratios and TMD displacements relative to the primary structure.The purpose of this study is to investigate the effect of optimal passive TMD based ona single degree of freedom system on tall wall-frame structures considering higher modes contributions. In this study wall-frame structure is chosen and modeled in the continuum approach as a uniform shear-flexure cantilever to reflect the combined wall and frame behavior of a real structure. |