A number of studies have been carried out to investigate the performance of visco-elastic dampers (VEDs)
and Magnetorheological dampers (MRDs) in controlling the seismic response of buildings but very few studies
regarding the effect of temperature on the behavior of those dampers. As the energy absorption properties of the
VEDs are dependent on the ambient temperature, excitation frequency and strain amplitude. Several
mathematical models have been investigated for reproducing the experimental behavior of single degree of
freedom VEDs and MEDs. Of these, only the fractional derivative model can reflect the influence of temperature
which is, however, so complex that it is difficult to apply in structural analysis. In order to verify the effect of
temperature we took two case studies of structural element been damped once using VED and once using MRD.
Kelvin-Voigt mathematical model applied and after analyzing the results, the force vs. displacement showed that
MRD achieved a high force capacity and better performance than VED. Furthermore, the effect of temperature
in case of VED observed via plotting the dissipated energy hysteresis at different temperature. Those results
validate the effect of temperature as the lower the temperature the more viscous the dashpot element becomes
and hence improved damping, but this is up to a specific low temperature
