Shape optimization of metallic yielding devices for passive mitigation of seismic energy
Article
Article Title | Shape optimization of metallic yielding devices for passive mitigation of seismic energy |
---|---|
ERA Journal ID | 4188 |
Article Category | Article |
Authors | Ghabraie, Kazem (Author), Chan, Ricky (Author), Huang, Xiaodong (Author) and Xie, Yi Min (Author) |
Journal Title | Engineering Structures |
Journal Citation | 32 (8), pp. 2258-2267 |
Number of Pages | 10 |
Year | 2010 |
Publisher | Elsevier |
Place of Publication | Oxford, United Kingdom |
ISSN | 0141-0296 |
1873-7323 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.engstruct.2010.03.028 |
Abstract | Bi-directional Evolutionary Structural Optimization (BESO) is a well established topology optimization technique. This method is used in this paper to optimize the shape of a passive energy dissipater designed for earthquake risk mitigation. A previously proposed shape design of a steel slit damper (SSD) device is taken as the initial design and its shape is optimized using a slightly modified BESO algorithm. Some restrictions are imposed to maintain simplicity and to reduce fabrication cost. The optimized shape shows increased energy dissipation capacity and even stress distribution. Experimental verification has been carried out and proved that the optimized shape is more resistant to low-cycle fatigue. |
Keywords | shape optimization; energy dissipation; bi-directional evolutionary structural optimization; metallic damper; cyclic tests; earthquake resistant structure |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
400506. Earthquake engineering | |
490304. Optimisation | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Department of Agricultural, Civil and Environmental Engineering |
Royal Melbourne Institute of Technology (RMIT) | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0743/shape-optimization-of-metallic-yielding-devices-for-passive-mitigation-of-seismic-energy
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