Experimental responses of two
type of seismic energy
dissipators, namely the triangular-plate added damping
and
stiffness (TADAS) device and the shear link energy absorber (SLEA) are
briefly summarised. Both two types of energy absorbing devices can sustain a
large number of yielding reversals and increase the damping and stiffness of
the frame structures. It is illustrated that the force versus deformation
relationships of a building structure constructed with these two types of
energy dissipator can be adequately characterised by a tri-linear model. Based
on the results of extensive response spectrum analyses, optimal stiffness and
strength ratios between the device and frame are recognised for the
rehabilitated structures. The paper concludes with examples illustrating the
seismic design procedures for building
rehabilitation using the proposed energy
dissipators to resist severe earthquake excitations.