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Earthquake tremor from neighbouring country had caused several cases of structural and non-structural damages toward the buildings in Malaysia. This issue had raised public attention about the safeness of the low-rise, mid-rise and high-rise building in the country. Buildings without proper seismic resistance design will collapse during the earth earthquake and people who could not evacuated from the building will be buried alive. Viscous Damper is one of the passive structural control systems in attenuating the seismic response on building. The damper utilized principle of fluid flow through orifices to create friction that turns the movement into heat energy to be release into atmosphere. This study is to investigate the effectiveness and behaviour of the mechanical shock absorber as damper in resisting seismic force. Three different type of dampers are being tested under 6 different loading displacement amplitude to measure the hysteresis loops and energy dissipation capability. The results showed that the extra features of the coil over in EX5 Kriss Wave damper with 17 kNmm had significantly increase the energy dissipation capability up to 5.6 time better than the lowest 3 kNmm APIDO type damper.

Pseudo dynamic loads energy dissipation in mechanical shock absorber seismic damper