Seismic performance evaluation of steel building frames with modified dual-pipe damper

Building performance against resistance to earthquake depends on selection of right building material with right properties. Steel frame structures are widely accepted due to its flexibility and seismic resistance property. However the practice of seismic retrofitting techniques in steel structures helps in the betterment of seismic performance of the building. A number of researches on simple and cost effective Metallic Yielding Device (MYD) are being conducted to evolve the best equipment. Dual-Pipe Damper (DPD) is one of the MYDs, which works on the principle of passive energy dissipation. A recent study brings the effective dimensions of pipes in DPD which can be implemented in a steel building frame conforming to IS 800:2007. This paper aims to study the effect of number of pipes in DPD by conducting parametric study using push over analysis. Three different configurations of optimized DPD installation in the multi-storey building frame are also studied. The Modal and Time-History analyses are performed on multi-storey frame with optimized DPD fixed at three configurations of steel frame conforming to IS 800:2007 to optimize the configuration.