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Determination of Optimum Configurations for Steel-Braced Frames with Segmental Elastic Spines
| 题名： | Determination of Optimum Configurations for Steel-Braced Frames with Segmental Elastic Spines |
| 正文语种： | 英文 |
| 作者： | L. Chen, M.ASCE1; R. Tremblay, M.ASCE2; L. Tirca, Aff.M.ASCE3 |
| 作者单位： | 1Graduate Student, Dept. of Civil, Geological and Mining Engineering, Ecole Polytechnique de Montreal, 2500, chemin de Polytechnique, Montr閍l, QC, Canada H3T 1J4 (corresponding author). 2Professor, Dept. of Civil, Geological and Mining Engineering, Ecole Polytechnique de Montreal, 2500, chemin de Polytechnique, Montr閍l, QC,Canada H3T 1J4. 3Associate Professor, Dept. of Building, Civil and Environmental Engineering, Concordia Univ., 1515, St. Catherine W., Montr閍l, QC, Canada H3G 1M8. |
| 关键词： | structure；different；application；onfi；vancouver；design；analysis；mplif；frame；columbia |
| 摘要： | A simplified analysis method is proposed to predict the response of segmental elastic spine–braced frames (SESBFs) and select the appropriate truss-segment configuration for a given frame. The method relies on a simplified structure model that can reproduce both the elastic flexural response and inelastic shear response of the braced-frame system. The proposed simplified model is described, and a flowchart is presented to illustrate the steps leading to the frame properties required to achieve the optimum seismic drift response for a given trusssegment configuration. In the design, the process is repeated for different potential truss-segment configurations, and their seismic responses are compared to select a suitable configuration for the structure. The application of the proposed procedure is illustrated for a 24-story building structure located in Vancouver, British Columbia, Canada. Five different truss-segment arrangements were investigated, and two configurations were identified as appropriate for the structure. Final design of the four most promising candidates was performed to confirm the findings from the preliminary design, and the comparison confirmed that the proposed method and simplified analysis model are suitable tools for the preliminary design of SESBFs. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 11 |
| 页码： | 1-17 |
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