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Title |
Behaviour of Shear Wall Structures with Energy Dissipation Device in Coupling Beam
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Authors |
김진상(Jin-Sang Kim) ; 윤태호(Tae-Ho Yoon) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.3.021 |
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Keywords |
전단벽식 구조 ; 감쇠장치 ; 캔틸러버형 강재댐퍼 ; 유한요소 해석 ; 비선형 해석 Shear wall structure ; Energy dissipation device ; Cantilever-type steel damper ; Finite element analysis ; Nonlinear analysis |
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Abstract |
Building structures of apartment in korea conventionally adopt shear walls using coupling beams as seismic force-resisting systems. Energy dissipating devices employed the building structures are used instead of the coupling beams in order to increase the seismic performances by providing additional damping and stiffness. This study aims to introduce energy dissipating devices which are preferred in structural system and aims to investigate structural behaviors of shear wall structures employing such devices instead of coupling beams. In order for achieve research objectives, Finite Element Analysis and Nonlinear analysis was carry out. Finite Element Analysis results was correspond with experimental results and this is indicated that the device can provide sufficient additional damping and stiffness into shear wall structures. Throughout nonlinear static analyses, examples structures with the devices can enhance seismic performance of building structures due to their sufficient energy dissipating capacities. Especially, strength and ductility capacities were significantly improved when it is compared with the performance of building structures without the devices. Throughout nonlinear dynamic analyses, it was observed that structural damages can be mitigated due to reduced seismic demands for seismic force-resisting systems. It is especially noted due to the fact that story drifts, accelerations, shear demands are reduced by 15~18%, 20~28% and 15~20%, respectively.
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