Passive Control of Steel Structures Utilizing Cylindrical Friction Dampers

Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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تاریخ نمایه سازی: 24 خرداد 1393

Abstract:

In this investigation, seismic response of steel structures utilizing Cylindrical Frictional Dampers (CFD) is studied. CFD is an innovative frictional damper which comprises two principal elements, the shaft and the hollow cylinder. These two elements are assembled such that one is shrink-fitted inside the other. If the damper’s axial force overcomes the static friction load, the shaft inside the cylinder will move and results in considerable mechanical energy absorption. To assess the efficacy of CFD, various steel frames are constructed and analyzed using OpenSees software. Nonlinear time history analyses and Incremental Dynamic Analysis (IDA) are applied to the frames and clear distinction has been drawn between the frames comprising CFD and the counterparts without CFD to emphasize the effectiveness of CFD in altering seismic responses. The results show that CFD extremely improves the seismic response of the structure

Authors

Hamid Mirzaeefard

M.Sc. Graduate, Department of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran,

H.R Samani

Instructor, Department of Civil Engineering, Islamic Azad University – Pardis Branch, Tehran, Iran

M Mirtaheri

Associate Professor, Department of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran

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