Güllü, Ahmet2024-06-132024-06-1320201302-93042547-958X10.21205/deufmd.2020226617https://doi.org/10.21205/deufmd.2020226617https://search.trdizin.gov.tr/tr/yayin/detay/384047https://hdl.handle.net/11501/743Energy based seismic design concept is getting attention owing to its advantages over theconventional methodologies. Particularly, the consideration of duration and frequency content ofthe earthquake record are chief superiority of the concept. For this original design procedure,accurate determination of seismic input energy is crucially important. Because of solving energybalance equation is a tedious job, the seismic input energy is determined in terms of equivalentvelocity in the literature mostly. However, it was also shown that this relation is valid for onlyundamped systems. Therefore, this study aims to provide the nonsteady relation between seismicinput energy and equivalent velocity for damped systems. Intensive response history analyseswere performed by using plenty of earthquake records those were selected by considering theimpulsive characteristics (ordinary and pulse-like) and shear wave velocity. It was found that therelation given in the literature for seismic input energy and spectral velocity relation is not true fordamped systems. Dependently, it is proposed a set of coefficients considering structural dampingproperties to modify the existing relation.eninfo:eu-repo/semantics/openAccessArticle8396682538404738404722