DYNAMIC ANALYSIS OF A TALL BUILDING WITH A TUNED-MASS-DAMPER DEVICE SUBJECTED TO EARTHQUAKE EXCITATIONS

✍ Scribed by A.-P. WANG; R.-F. FUNG; S.-C. HUANG

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 363 KB
• Volume: 244
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.2000.3480

✦ Synopsis

In this paper, Hamilton's principle and "nite element method are employed to formulate the new dynamic equation of a tall building subjected to earthquake excitations. A tuned-mass-damper (TMD) system is installed at the top to absorb the earthquakeinduced vibrations. First, the non-linear governing equations in the axial and transverse directions are obtained by the Euler-beam theory. Secondly, the simple-#exure beam model is employed to reduce the system as a linear one. The energetic analyses of these two beam theories are provided. It is found that the rigid-body motion of the TMD and the transversal vibrations of the tall building are coupled and energy is transfered between them. Finally, the e!ects of several parameters on the rigid-body motion and transversal vibrations are presented and discussed.