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High-rise Reinforced-concrete Building Incorporating an Oil Damper in an Outrigger Frame and Its Vibration Analysis
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 Title & Authors
High-rise Reinforced-concrete Building Incorporating an Oil Damper in an Outrigger Frame and Its Vibration Analysis
Omika, Yukihiro; Koshika, Norihide; Yamamoto, Yukimasa; Kawano, Kenichi; Shimizu, Kan;
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 Abstract
The reinforced-concrete multi-story shear-wall structure, which can free a building from beams and columns to allow the planning of a vast room, has increasingly been used in Japan as a high-rise reinforced-concrete structure. Since this structural system concentrates the seismic force onto multi-story shear walls inside, the bending deformation of the walls may cause excessive deformation on the upper floors during an earthquake. However, it is possible to control the bending deformation to within a certain level by setting high-strength and rigid beams (outriggers) at the top of the multi-story shear walls; these outriggers restrain the bending behavior of the walls. Moreover, it is possible to achieve high energy dissipation by placing vibration control devices on the outriggers and thus restrain the bending behavior. This paper outlines the earthquake response analysis of a high-rise residential tower to demonstrate the effectiveness of the outrigger frame incorporating vibration control devices.
 Keywords
High-rise building;Outrigger system;Oil damper;Vibration control;Reinforced-concrete;
 Language
English
 Cited by
 References
1.
Omika, Y., Sugano, T., and Yamamoto, Y., et al. (2000). Seismic design of a super frame structural system with passive energy dissipation devices. 12WCEE, 744/6/A.

2.
Omika, Y., Yamamoto, Y., Kawano, K., and Fukada, Y. (2006). Study on structural principle of flexural deformation response control system. Journal of Structural and Construction Engineering of Architectural Institute of Japan, 602, 111-118. (in Japanese)

3.
Choi, H. S. and Joseph, L. (2012). Outrigger system design considerations. International Journal of High-Rise Buildings, 1(3), 237-246.