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Title: Explicit optimal hysteretic damper design in elastic-plastic structure under double impulse as representative of near-fault ground motion

Authors: Takuma Shiomi; Kohei Fujita; Masaaki Tsuji; Izuru Takewaki

Addresses: Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8540, Japan ' Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8540, Japan ' Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8540, Japan ' Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8540, Japan

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.

Keywords: 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.

DOI: 10.1504/IJEIE.2016.080029

International Journal of Earthquake and Impact Engineering, 2016 Vol.1 No.1/2, pp.5 - 19

Available online: 26 Oct 2016 *

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