The energy dissipation capacity of a building is poor when it is not provided with any kind of seismic protection
methods, especially when it is situated in seismic active zones. Dampers can be provided to overcome this. Passive controlled
metallic damper is one of the most commonly used dampers for seismic resistance in buildings. This type of damper helps to
dissipate seismic loads acting on the building by making the structure to behave as elastic in nature where as it act as plastic in
nature. In this type of dampers a newly formed metallic damper called dual pipe damper (DPD) is used for seismic resistance.
DPD is a cost effective and economical damper which is easy to install in both newly formed structure and old building without
any seismic resisting elements
