Passive tuned mass damper for seismically excited structures

Abstract

The physical consequences of earthquakes are death and injury to newlinehuman beings and damage to constructed and natural environment To reduce newlinevibrations in structures many structural control systems has been designed and newlineinstalled world wide Of all the methods the traditional method of newlineimplementing control system is TMD The effectiveness of the TMD depends newlineon how the dynamic properties are tuned to the properties of the structure newlineThe dynamic properties include mass ratio newlinedifferent time period respond to different earthquakes in different manner newlineHence in the present work a methodology to optimize the dynamic parameters newlineof TMD is arrived at newlineThe objective function of optimization was to reduce the peak newlineresponse of structures with time period varying from 01 to 3 sec in newlineincrements of 001 subjected to seismic excitation newline newline