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http://dx.doi.org/10.5050/KSNVN.2008.18.6.589

Seismic Performance Enhancement of Building Structures with Beam-end Rotation Type Dampers  

Woo, Sung-Sik (단국대학교 건축공학과)
Lee, Sang-Hyun (단국대학교 건축공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.6, 2008 , pp. 589-597 More about this Journal
Abstract
The vertical extension of a building in general remodeling process increases both gravity and seismic loads by simply adding masses to the building. In this study, a vertical extension structural module(VESM) is proposed for enhancing seismic performance of the existing buildings by utilizing the story-increased parts. The proposed VESM is composed of steel column, steel beam, and beam-end rotational damper. The steel columns are connected to the shear walls and transfer the wall rotation in out-of plane to the steel beam, and then the beam-end rotational damper dissipates the earthquake-induced energy. Numerical analysis result from a cantilever beam of which end-rotation is restricted by rotational damper indicates that the displacement, base shear, and base overturning moment of the existing structures showing cantilever behavior can be significantly reduced by using the proposed method. Also, it is observed that friction-type rotational damper is effective than viscous one.
Keywords
Vertical Extension Structural Module(VESM); Rotational Damper;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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