The use of mechanical damper provides the means for consuming the kinetic energy of a vibrating building without sacrificing the integrity of primary structure elements, and also represents an effective method for reducing the possibility of resonant response. Recent analytical and experimental investigations suggest that it is possible to significantly increase damping in buildings through the use of mechanical damping devices. In this paper, among numerous different types of energy-absorbing devices, effect of Pall-friction damping and added damping and stuffiness (ADAS) device on an interesting type of semi-rigid steel framing connection which is commonly used in Iran (including in seismic zone) have been investigated. Analytical results are first summarized to illustrate the earthquake performance of damped structures compared to the performance of conventional building systems. On the basis of extensive analytical and experimental investigations, some theoretical issues associated with application of a particular type of friction damped bracing and ADAS elements to two different groups of common building structures in Iran, 1 ) simple steel braced frames, 2) semi-rigid "Khorjinee" steel braced frames, for seismic performance enhancement are considered.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £50 +P&P)