Abstract
In this paper, an alternative vibration control system for long-lived steel buildings has been proposed and the static cyclic loading tests have been performed. The effects of the shape and size of the bending failure beam as a damper on the elastic-plastic hysteretic performance have been discussed. The optical fiber Bragg grating sensors have been installed on the surface of the beam and the optical power spectra as well as the strain quantities using their outputs have successfully been measured in detail. It has been shown that the spectra change from sharp one-peak type to multi-peak one due to steel yielding. The characteristics would be useful for assessing the damage level after large earthquake.
