ASTM A106/106M 2014 (Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service) std

ASTM A106/106M 2014 (Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service) std

استاندارد ASTM A106 برای لوله های بدون درز برای سرویسهای دما بالا

Passive Control of Steel Structures Utilizing Cylindrical Friction Dampers

نویسند‌گان: [ h 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

خلاصه مقاله:

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

کلمات کلیدی:Passive control, Cylindrical Frictional Damper, Incremental Dynamic Analysis, Seismic response

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ASTM A105/105M 2014 (Standard Specification for Carbon Steel Forgings for Piping Applications) std

ASTM A105/105M 2014 (Standard Specification for Carbon Steel Forgings for Piping Applications) std

استاندارد astm برای مواد فورج بکار رفته در پایپینگ

ASTM Handbook of comparative world steel standards - 3rd Edition

ASTM Handbook of comparative world steel standards - 3rd Edition 

هندبوک جامعی از انجمن ASTM برای مقایسه استاندارد های مختلف فولادها در کشورهای مختلف. به کمک این هندبوک دیگر مشکلی در یافتن فولاد معادل متریال مورد نیازتان در استاندارد کشورهای مختلف نخواهید داشت.

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