An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames
Special concentrically braced frames (SCBFs) are commonly used to resist lateral loads in buildings. The bracing system sustains large deformations due to inelastic behavior in bracing members (buckling and yielding in tension). Generally, in the conventional modeling strategy, the effect of gusset...
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| Format: | Article |
| Language: | fas |
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Iranian Society of Structrual Engineering (ISSE)
2016-12-01
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| Series: | Journal of Structural and Construction Engineering |
| Subjects: | |
| Online Access: | https://www.jsce.ir/article_40261_80b9d63ed9553420a11a4925472df058.pdf |
| _version_ | 1819199816405614592 |
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| author | Ali Esnaashari Amin Mohebkhah |
| author_facet | Ali Esnaashari Amin Mohebkhah |
| author_sort | Ali Esnaashari |
| collection | DOAJ |
| description | Special concentrically braced frames (SCBFs) are commonly used to resist lateral loads in buildings. The bracing system sustains large deformations due to inelastic behavior in bracing members (buckling and yielding in tension). Generally, in the conventional modeling strategy, the effect of gusset plates in providing beam-column connections rigidity and hence, improving the post-buckling performance of these frames is not taken into account. This paper deals with the effect of gusset plate rigidity on the seismic behavior of SCBFs using Roeder’s proposed model in the literature. In this paper, four 3, 6, 9 and 12-story SCBFs were designed and modeled using two distinct methods: conventional method with hinged connections and Roeder’s method with semi-rigid connections. Then, the models behavior was investigated with both pushover analysis and nonlinear time-history analysis using OpenSees software. The results showed that lateral load capacity of the frames modeled with the Roeder’s proposed model are about 10% larger than the conventional method’s capacity. Also, it was found that the semi-rigid model leads to a less drift ratios and more overstrength factors. |
| first_indexed | 2024-12-23T03:22:21Z |
| format | Article |
| id | doaj.art-cf74e75c67454f6ea048ef95703a0414 |
| institution | Directory Open Access Journal |
| issn | 2476-3977 2538-2616 |
| language | fas |
| last_indexed | 2024-12-23T03:22:21Z |
| publishDate | 2016-12-01 |
| publisher | Iranian Society of Structrual Engineering (ISSE) |
| record_format | Article |
| series | Journal of Structural and Construction Engineering |
| spelling | doaj.art-cf74e75c67454f6ea048ef95703a04142022-12-21T18:01:58ZfasIranian Society of Structrual Engineering (ISSE)Journal of Structural and Construction Engineering2476-39772538-26162016-12-013312814210.22065/jsce.2016.4026140261An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced framesAli Esnaashari0Amin Mohebkhah1MSc of Structural Engineering, Department of Civil Engineering, Malayer Branch, Islamic Azad University, Malayer, IranAssistant Professor of Structural Engineering, Department of Civil Engineering, Malayer University, Malayer, IranSpecial concentrically braced frames (SCBFs) are commonly used to resist lateral loads in buildings. The bracing system sustains large deformations due to inelastic behavior in bracing members (buckling and yielding in tension). Generally, in the conventional modeling strategy, the effect of gusset plates in providing beam-column connections rigidity and hence, improving the post-buckling performance of these frames is not taken into account. This paper deals with the effect of gusset plate rigidity on the seismic behavior of SCBFs using Roeder’s proposed model in the literature. In this paper, four 3, 6, 9 and 12-story SCBFs were designed and modeled using two distinct methods: conventional method with hinged connections and Roeder’s method with semi-rigid connections. Then, the models behavior was investigated with both pushover analysis and nonlinear time-history analysis using OpenSees software. The results showed that lateral load capacity of the frames modeled with the Roeder’s proposed model are about 10% larger than the conventional method’s capacity. Also, it was found that the semi-rigid model leads to a less drift ratios and more overstrength factors.https://www.jsce.ir/article_40261_80b9d63ed9553420a11a4925472df058.pdfspecial concentrically braced frames (scbfs)seismic behaviorgusset platepropose modelnonlinearanalysis |
| spellingShingle | Ali Esnaashari Amin Mohebkhah An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames Journal of Structural and Construction Engineering special concentrically braced frames (scbfs) seismic behavior gusset plate propose model nonlinearanalysis |
| title | An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames |
| title_full | An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames |
| title_fullStr | An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames |
| title_full_unstemmed | An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames |
| title_short | An investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames |
| title_sort | investigation on the effect of gusset plate connection rigidity on the seismic behavior of special concentrically braced frames |
| topic | special concentrically braced frames (scbfs) seismic behavior gusset plate propose model nonlinearanalysis |
| url | https://www.jsce.ir/article_40261_80b9d63ed9553420a11a4925472df058.pdf |
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