SEISMIC STUDY OF BUILDINGS WITH VISCOELASTIC DAMPERS

In this paper, the seismic behavior of a 10-story building equipped wi th viscoelastic dampers is analyzed. The effects of ambient temperatur e, the thickness, the total area, and the position of the viscoelastic dampers are studied. Results indicate that the energy-absorbing capac ity of viscoelastic damper decreases with increasing the ambient tempe rature. The thickness and the total area of viscoelastic dampers also affect the seismic mitigation capacity. The thickness cannot be too sm all, which is not effective in vibration reduction, nor can it be too large, which not only increases the cost but also reduces the seismic resistance. The total area of viscoelastic dampers should be determine d properly for optimum damper performance at the most economical desig n. The mounting position of viscoelastic dampers also influences the s tructure's seismic performance. Numerical results show that, if proper ly equipped, the VE dampers can reduce the structural response both fl oor displacement and story shear force and increase the overall level of damping in structures during earthquakes.