Analytical approach of buckling strength of yielding damped braced core (YDBC)
Abstract: Previous research on bracing members show that the ductility of bracing members is compromised due to the buckling phenomena. Therefore, many researchers have tried to use special considerations to increase the fracture life of bracing members. Some of these recommendations such as increas...
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| Format: | Article |
| Language: | English |
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K. N. Toosi University of Technology
2017-05-01
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| Series: | Numerical Methods in Civil Engineering |
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| Online Access: | https://nmce.kntu.ac.ir/article_160428_cf1c89aaf86073902c61016fbe03c105.pdf |
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| author | S. Sabouri-Ghomi B. Payandehjoo H. Ghasemzadeh |
| author_facet | S. Sabouri-Ghomi B. Payandehjoo H. Ghasemzadeh |
| author_sort | S. Sabouri-Ghomi |
| collection | DOAJ |
| description | Abstract: Previous research on bracing members show that the ductility of bracing members is compromised due to the buckling phenomena. Therefore, many researchers have tried to use special considerations to increase the fracture life of bracing members. Some of these recommendations such as increasing the slenderness ratio, using lower width to thickness ratio, increasing the out-of-plane stiffness of middle connection to increase the fracture life of the bracing members can be used in seismic upgrading of bracing members. In this paper, the buckling behavior of a special type of concentrically braced frame termed as yielding damped braced core is investigated for different percentage of central core. Empirical studies shows that separation of X-braces by central frame, influence the buckling behavior of the system and leads to occurrence of buckling in second mode shape in accordance with two half-sine wave. The theoretical studies shows that the buckling strength of the system increases in proportion to increase in central core rigidity. Using more flexible central core, results in increase the possibility of instability and vice versa. Hence, to enhance the buckling behavior of the system, it is strongly recommended to use a central core with proper rigidity. |
| format | Article |
| id | doaj-art-afad9f58cf6d4f70a7c344bccfaa3c3e |
| institution | OA Journals |
| issn | 2345-4296 2783-3941 |
| language | English |
| publishDate | 2017-05-01 |
| publisher | K. N. Toosi University of Technology |
| record_format | Article |
| series | Numerical Methods in Civil Engineering |
| spelling | doaj-art-afad9f58cf6d4f70a7c344bccfaa3c3e2025-08-20T02:34:35ZengK. N. Toosi University of TechnologyNumerical Methods in Civil Engineering2345-42962783-39412017-05-0114323710.29252/nmce.1.4.32160428Analytical approach of buckling strength of yielding damped braced core (YDBC)S. Sabouri-Ghomi0B. Payandehjoo1H. Ghasemzadeh2Professor, Dept. of Civil Eng., K. N.Toosi University, Tehran, IranPh.d,.K.N.Toosi University, Tehran, IranAssociate Professor, Dept. of Civil Eng., K. N. Toosi University of Technology, Tehran, IranAbstract: Previous research on bracing members show that the ductility of bracing members is compromised due to the buckling phenomena. Therefore, many researchers have tried to use special considerations to increase the fracture life of bracing members. Some of these recommendations such as increasing the slenderness ratio, using lower width to thickness ratio, increasing the out-of-plane stiffness of middle connection to increase the fracture life of the bracing members can be used in seismic upgrading of bracing members. In this paper, the buckling behavior of a special type of concentrically braced frame termed as yielding damped braced core is investigated for different percentage of central core. Empirical studies shows that separation of X-braces by central frame, influence the buckling behavior of the system and leads to occurrence of buckling in second mode shape in accordance with two half-sine wave. The theoretical studies shows that the buckling strength of the system increases in proportion to increase in central core rigidity. Using more flexible central core, results in increase the possibility of instability and vice versa. Hence, to enhance the buckling behavior of the system, it is strongly recommended to use a central core with proper rigidity.https://nmce.kntu.ac.ir/article_160428_cf1c89aaf86073902c61016fbe03c105.pdfyielding damped braced coreeffective length factorempirical testseismic performancebucklingcentral core |
| spellingShingle | S. Sabouri-Ghomi B. Payandehjoo H. Ghasemzadeh Analytical approach of buckling strength of yielding damped braced core (YDBC) Numerical Methods in Civil Engineering yielding damped braced core effective length factor empirical test seismic performance buckling central core |
| title | Analytical approach of buckling strength of yielding damped braced core (YDBC) |
| title_full | Analytical approach of buckling strength of yielding damped braced core (YDBC) |
| title_fullStr | Analytical approach of buckling strength of yielding damped braced core (YDBC) |
| title_full_unstemmed | Analytical approach of buckling strength of yielding damped braced core (YDBC) |
| title_short | Analytical approach of buckling strength of yielding damped braced core (YDBC) |
| title_sort | analytical approach of buckling strength of yielding damped braced core ydbc |
| topic | yielding damped braced core effective length factor empirical test seismic performance buckling central core |
| url | https://nmce.kntu.ac.ir/article_160428_cf1c89aaf86073902c61016fbe03c105.pdf |
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