000010515 001__ 10515
000010515 005__ 20141205155735.0
000010515 04107 $$aeng
000010515 046__ $$k2008-10-12
000010515 100__ $$aKim, Jeongjae
000010515 24500 $$aDesign of Zipper Column in Inverted V Braced Steel Frames

000010515 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010515 260__ $$b
000010515 506__ $$arestricted
000010515 520__ $$2eng$$aInverted V (or chevron) braced steel frames have been seen as being prone to soft story response once the compression brace buckles under earthquake loading. To salvage chevron braced frames, the concept of the zipper column was proposed many years ago such that the zipper column can redistribute the inelastic demand over the height of the building. However, it appears that a rational design method for the zipper column has not been established yet. In this paper, a simple static design was first presented, and then a dynamic design method which can consider the effects of the brace slenderness and higher modes was proposed by combining the refined physical theory braced model and the modal pushover analysis. Inelastic dynamic analysis showed that both the static and dynamic design methods proposed in this study result in significantly improved seismic performance as compared to the case without zipper column. The simple static design method proposed to invoke at least two-story buckling mechanism equally worked well in this limited case study.

000010515 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010515 653__ $$aInverted V (chevron) braced steel frames, Zipper column, Modal pushover, Seismic

000010515 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010515 720__ $$aKim, Jeongjae$$iCho, Chunhee$$iLee, Kyungkoo$$iLee, Cheolho
000010515 8560_ $$ffischerc@itam.cas.cz
000010515 8564_ $$s320045$$uhttps://invenio.itam.cas.cz/record/10515/files/05-05-0132.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-05-0132.
000010515 962__ $$r9324
000010515 980__ $$aPAPER