This paper presents a physically motivated model for the gross dynamic behaviour of degrading hysteretic structures subjected to damaging earthquake motions. The model is intended to provide a vehicle for gaining insight into the nature of the non-linear response of such structures and to be used in system identification studies. A concept is presented for identifying the model parameters based on examination of the gross restoring force characteristic of a real structure. The model is applied to data from two damaged structures: the Bank of California building in the 1971 San Fernando earthquake and the Imperial County Services building in the 1979 Imperial County earthquake.
Cifuentes, Arturo, and W.D. Iwan. "A Model for System Identification of Degrading Structures." Earthquake Engineering & Structural Dynamics 14, no. 6 (November 1986): 877-890.
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