Explicit optimal hysteretic damper design in elastic-plastic structure under double impulse as representative of near-fault ground motion. (2016)

• Record Type: Journal Article
• Authors: Shiomi, Takuma; Fujita, Kohei; Tsuji, Masaaki; Takewaki, Izuru
• Is Part Of: International journal of earthquake and impact engineering. Volume 1:Number 1/2(2016)
• Page Start: 5
• Page End: 19
• Publication Date: 2016
• Subjects: optimal design -- hysteretic dampers -- elastic-plastic response -- near-fault ground motion -- structural control -- double impulse -- damper design -- energy balance -- structural design -- infrastructure design -- earthquake resilience -- earthquakes -- seismic intensity
• Languages: English
• ISSNs: 2397-9372

Abstract

A closed-form maximum elastic-plastic response is derived for a structure with hysteretic dampers under the critical double impulse as a representative of near-fault ground motion. It is shown that the classification into nine cases is possible depending on the combination of elastic-plastic responses of the structure and the hysteretic damper and the double impulse enables the derivation of the closed-form maximum elastic-plastic critical response of the controlled structure by using the energy balance in each case. It is demonstrated that the closed-form maximum elastic-plastic critical response is quite useful for finding an optimal hysteretic damper quantity depending on the input level of the double impulse.