چکیده مقاله
High performance and reliability of refurbish able knee braced steel frames has been confirmed in previous researches trying to get an optimal design for its configuration Buckling of diagonal member which affects the hysteretic behavior of KBF under cyclic loadings has not been foreseen in previousevaluations of this system This deficiency can be improved by utilization of adjustable rotary friction damper device FDD as knee element Diagonal element buckling can be prevented considering a suitable value for FDD sliding threshold moment Mf Nonlinear time history analyses have beenperformed to evaluate the response of single story KBF subjected to seismic record Optimal Mf in FDD has been chosen for these analyses Roof displacement and acceleration, base shear and diagonal element’s buckling status have been compared in KBF and FKBF with different configurations More than 89% displacement response reduction has been earned for the FKBF without considerable increase in base shear
کلیدواژهها
نویسندگان
A Gholizad
Assistant Professor, Civil Engineering Department, University of Mohaghegh Ardabili, Ardabil,
P Kamrani Moghaddam
MSc Student, Civil Engineering Department, University of Mohaghegh Ardabili, Ardabil, Iran
شیوه ارجاع
Gholizad, A and Kamrani Moghaddam, P,1391,Performance of Friction Damper for Dynamic Response Reduction of Seismically Excited Knee Braced Steel Frames,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان