Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm
This paper describes a stressed-skin diaphragm approach to the optimal design of the internal frame of a cold-formed steel portal framing system, in conjunction with the effect of semi-rigid joints. Both ultimate and serviceability limit states are considered. Wind load combinations are included. Th...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Pergamon
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/21620 |
| _version_ | 1848750640548806656 |
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| author | Phan, Thanh Duoc Lim, J. Tanyimboh, T. Wrzesien, A. Sha, W. Lawson, R. |
| author_facet | Phan, Thanh Duoc Lim, J. Tanyimboh, T. Wrzesien, A. Sha, W. Lawson, R. |
| author_sort | Phan, Thanh Duoc |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper describes a stressed-skin diaphragm approach to the optimal design of the internal frame of a cold-formed steel portal framing system, in conjunction with the effect of semi-rigid joints. Both ultimate and serviceability limit states are considered. Wind load combinations are included. The designs are optimized using a real-coded niching genetic algorithm, in which both discrete and continuous decision variables are processed. For a building with two internal frames, it is shown that the material cost of the internal frame can be reduced by as much as 53%, compared with a design that ignores stressed-skin action. |
| first_indexed | 2025-11-14T07:40:03Z |
| format | Journal Article |
| id | curtin-20.500.11937-21620 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:40:03Z |
| publishDate | 2015 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-216202018-03-29T09:06:34Z Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm Phan, Thanh Duoc Lim, J. Tanyimboh, T. Wrzesien, A. Sha, W. Lawson, R. This paper describes a stressed-skin diaphragm approach to the optimal design of the internal frame of a cold-formed steel portal framing system, in conjunction with the effect of semi-rigid joints. Both ultimate and serviceability limit states are considered. Wind load combinations are included. The designs are optimized using a real-coded niching genetic algorithm, in which both discrete and continuous decision variables are processed. For a building with two internal frames, it is shown that the material cost of the internal frame can be reduced by as much as 53%, compared with a design that ignores stressed-skin action. 2015 Journal Article http://hdl.handle.net/20.500.11937/21620 10.1016/j.engstruct.2015.02.037 Pergamon restricted |
| spellingShingle | Phan, Thanh Duoc Lim, J. Tanyimboh, T. Wrzesien, A. Sha, W. Lawson, R. Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| title | Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| title_full | Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| title_fullStr | Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| title_full_unstemmed | Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| title_short | Optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| title_sort | optimal design of cold-formed steel portal frames for stressed-skin action using genetic algorithm |
| url | http://hdl.handle.net/20.500.11937/21620 |