Abstract-This paper is focused on the advantages of viscoelastic dampers (VED) to be used as energy-absorbing devices in buildings. The properties of VED are briefly described. The analytical studies of the model structures exhibiting the structural response reduction due to these viscoelastic devices are presented. Computer simulation of the damped response of a multi-storey steel frame structure shows significant reduction in floor displacement levels.

No abstract

The severity of seismic damage of reinforced concrete buildings depends on the tectonic characteristics of area, seismic features of ground motion, quality and quantity of buildings. One of the most important factor"s, affecting the seismic damage, is the degrading rate of building. Degradation of stiffness and strength are the parameters, which their effect on the seismic damage of buildings are investigated, using an inelastic dynamic analysis. The buildings which are studied are moment resisting RC frames. In order to study the inelastic dynamic behavior of these buildings, IDARC software is used. Based on the obtained results, 40% degradation of strength or 50% degradation of stiffness will cause severe structural damage in the buildings.

This paper is focused on the advantages of viscoelastic dampers (VED) to be used as energy-absorbing devices in buildings. The properties of VED are briefly described. The analytical studies of the model structures exhibiting the structural response reduction due to these viscoelastic devices are presented. Computer simulation of the damped response of a multi-storey steel frame structure shows significant reduction in floor displacement levels.