原文传递
Application of a Translational Tuned Mass Damper Designed by Means of Genetic Algorithms on a Multistory Cross-Laminated Timber Building
| 题名： | Application of a Translational Tuned Mass Damper Designed by Means of Genetic Algorithms on a Multistory Cross-Laminated Timber Building |
| 正文语种： | 英文 |
| 作者： | Guillaume Herve Poh'sie; Corrado Chisari; Giovanni Rinaldin; Massimo Fragiacomo;Claudio Amadio;Ario Ceccotti |
| 作者单位： | Univ, of Trieste, Piazzale Europa 1;Univ, of Sassari |
| 关键词： | Genetic algorithms; Tuned mass dampers; Springs; Shear wall; Wooden structures; Dynamic analysis; Seismic performance; Timber; Cross-laminated timber; X-lam; Wood structures. |
| 摘要： | This paper presents a numerical study conducted on a seven-story timber building made of cross-laminated (X-lam) panels, equipped with a linear translational tuned mass damper (TMD). The TMD is placed on the top of the building as a technique for reducing the notoriously high drifts and seismic accelerations of these types of structures. TMD parameters (mass, stiffness, and damping) were designed using a genetic algorithm (GA) technique by optimizing the structural response under seven recorded earthquake ground motions compatible, on average, with a predefined elastic spectrum. Time-history dynamic analyses were carried out on a simplified two-degree-of-freedom system equivalent to the multistory building, while a detailed model of the entire building using two-dimensional elastic shell elements and elastic springs for modeling connections was used as a verification of the evaluated solution. Several comparisons between the response of the structure with and without TMD subjected to medium- and high-intensity recorded earthquake ground motions are presented, and the effectiveness and limits of these devices for improving the seismic performance of X-lam buildings are critically evaluated. DOI: 10.106l/(ASCE)ST.1943-541X.0001342. © 2015 American Society of Civil Engineers. |
| 出版日期： | 2016.04 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.04 |
| 页码： | E4015008 |
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