Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls
In this study, evaluation on lateral resistance and seismic response modification factor-R of strap-braced cold-formed steel shear walls is presented. Also, the results are compared with the prescibed values by the codes and standards. The structural parameters that are taken into account include: c...
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| Format: | Article |
| Language: | fas |
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Semnan University
2017-08-01
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| Series: | مجله مدل سازی در مهندسی |
| Subjects: | |
| Online Access: | https://modelling.semnan.ac.ir/article_2544_c5f7ab2a76e4348b7f41082f0b150682.pdf |
| _version_ | 1797296636614934528 |
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| author | Mehran ZEYNALIAN Hossein Tajmir Riahi Mehran Abbasi Sooreshjani |
| author_facet | Mehran ZEYNALIAN Hossein Tajmir Riahi Mehran Abbasi Sooreshjani |
| author_sort | Mehran ZEYNALIAN |
| collection | DOAJ |
| description | In this study, evaluation on lateral resistance and seismic response modification factor-R of strap-braced cold-formed steel shear walls is presented. Also, the results are compared with the prescibed values by the codes and standards. The structural parameters that are taken into account include: cross section of bracing straps, aspect ratio of the frames and studsâ spacing. In this study, the effects of nonlinear behavior of steel, geometric imperfection of cold formed sections and residual stresses induced by cold forming process are considered. The lateral strength and displacement of the frames will be determined by ANSYS finite element software. The results of the analysis show that the increase in strapsâ cross-sections area and the ratio of width to height of the frame lead to increase of the frame capacity but changing the distances between the studs have no significant impact on the capacity of the frame. Also the response modification factors (R factors) of the studied frames are calculated in the range of 5.31 and 6.39. The results show that the prescribed R factors by the codes are conservative and can be improves, slightly. |
| first_indexed | 2024-03-07T22:07:38Z |
| format | Article |
| id | doaj.art-e23eb6aff8414a95be1b47fcdca50551 |
| institution | Directory Open Access Journal |
| issn | 2008-4854 2783-2538 |
| language | fas |
| last_indexed | 2024-03-07T22:07:38Z |
| publishDate | 2017-08-01 |
| publisher | Semnan University |
| record_format | Article |
| series | مجله مدل سازی در مهندسی |
| spelling | doaj.art-e23eb6aff8414a95be1b47fcdca505512024-02-23T19:03:17ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382017-08-01154917518810.22075/jme.2017.25442544Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear wallsMehran ZEYNALIAN0Hossein Tajmir Riahi1Mehran Abbasi Sooreshjani2دانشگاه اصفهاندانشگاه اصفهاندانشگاه اصفهانIn this study, evaluation on lateral resistance and seismic response modification factor-R of strap-braced cold-formed steel shear walls is presented. Also, the results are compared with the prescibed values by the codes and standards. The structural parameters that are taken into account include: cross section of bracing straps, aspect ratio of the frames and studsâ spacing. In this study, the effects of nonlinear behavior of steel, geometric imperfection of cold formed sections and residual stresses induced by cold forming process are considered. The lateral strength and displacement of the frames will be determined by ANSYS finite element software. The results of the analysis show that the increase in strapsâ cross-sections area and the ratio of width to height of the frame lead to increase of the frame capacity but changing the distances between the studs have no significant impact on the capacity of the frame. Also the response modification factors (R factors) of the studied frames are calculated in the range of 5.31 and 6.39. The results show that the prescribed R factors by the codes are conservative and can be improves, slightly.https://modelling.semnan.ac.ir/article_2544_c5f7ab2a76e4348b7f41082f0b150682.pdfcold-formed steel structuresdiagonal bracing strapseismic response modification factorresidual stressesimperfection |
| spellingShingle | Mehran ZEYNALIAN Hossein Tajmir Riahi Mehran Abbasi Sooreshjani Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls مجله مدل سازی در مهندسی cold-formed steel structures diagonal bracing strap seismic response modification factor residual stresses imperfection |
| title | Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls |
| title_full | Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls |
| title_fullStr | Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls |
| title_full_unstemmed | Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls |
| title_short | Parametric study on lateral resistance and evaluation of seismic response modification factor-R of strap-braced cold-formed steel shear walls |
| title_sort | parametric study on lateral resistance and evaluation of seismic response modification factor r of strap braced cold formed steel shear walls |
| topic | cold-formed steel structures diagonal bracing strap seismic response modification factor residual stresses imperfection |
| url | https://modelling.semnan.ac.ir/article_2544_c5f7ab2a76e4348b7f41082f0b150682.pdf |
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