Seismic Pounding Response of Singled-Degree-of-Freedom Elastic and Inelastic Structures Using Passive Tuned Mass Damper

The present paper addresses the comparative study of two adjacent single-degree-of-freedom structures for elastic and inelastic systems with and without pounding. The study is also carried out in the presence and absence of tuned mass damper under (TMD) seismic excitations. The tuned mass damper considered for the present study is a passive device attached to single main structural unit in the simplest form as soft storey at the top of main system. Total eight models have been considered depending upon the presence and absence of pounding as well as TMD in the analysis. The entire numerical simulation is carried out in time domain form by considering the inputs of four real earthquake ground motions. Outcome of the present study indicates that elastic adjacent structural system always overrates the pounding forces than the inelastic adjacent structural units. The use of TMD reduces the pounding forces in the adjacent structures. During pounding, the results show that the structural displacement response is much more sensitive for inelastic systems mostly under consideration or ignorance of TMD. One of the observations is that there is large amount of variation in the structural energy formation of adjacent structures while considering or ignoring the pounding as well as TMD.