Abstract
The purpose of this study is to investigate the effect of frequency characteristics and duration of input earthquake motion on the energy responses of structures. In this study, numerical analysis for bi-linear SDOF structures with wide ranging structural parameters was carried out by the use of twelve artificial earthquakes, each varying in duration and frequency characteristics. From the examination of analytical results, it is found that the frequency characteristics of the input earthquake motion has a large effect on the periodical characteristics of all responses of the structures, such as elastic maximum velocity (Vemax), elastic input energy (Eie), hysteretic energy (Ehp) and so on. It is also found that the duration considerably affects the value of energy responses such as Eie and Ehp.
