دانلود مقاله THE USE OF VISCOUS AND VISCOELASTIC DAMPERS FOR SEISMIC REHABILITATION OF THE STRUCTURES
سال انتشار: ۱۳۸۶
محل انتشار: پنجمین کنفرانس بین المللی زلزله شناسی و مهندسی زلزله
تعداد صفحات: ۱۰
TEHRANI – Graduate Student of Structural Engineering, University of Tehran, Tehran, Iran
MAALEK – Faculty of Engineering, Civil Engineering Department, University of Tehran, Tehran , Iran
dynamic analyses. Each damping system has been modeled in the structure for several damping ratios and damper properties.
In nonlinear dynamic analyses by the use of RAM-PERFORM3D software, the response of the structure to seven scaled earthquake records matched to the design spectrum has been obtained and the average value of the displacements, drifts and dissipated energy in the structural members have been used for the comparison. The results demonstrate that with the use of viscous and viscoelastic dampers in the structures, displacements and damages in the structure can be substantially reduced. At the same time, because these kinds of dampers exert their maximum forces in out of phase with displacement, most of the columns remain elastic.