Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis
This paper presents a new bracing system with variable stiffness springs; this adaptive structural control system is designed to protect buildings against severe vibration and ground movement. The developed variable stiffness bracing (VSB) system comprises four nonlinear steel leaf springs that prov...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/55453/1/Design%20of%20a%20variable%20stiffness%20bracing%20system%20mathematical%20modeling%2C%20fabrication%2C%20and.pdf |
| _version_ | 1825931221975171072 |
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| author | Fateh, Amir Hejazi, Farzad Jaafar, Mohd Saleh Abd Karim, Izian Adnan, Azlan |
| author_facet | Fateh, Amir Hejazi, Farzad Jaafar, Mohd Saleh Abd Karim, Izian Adnan, Azlan |
| author_sort | Fateh, Amir |
| collection | UPM |
| description | This paper presents a new bracing system with variable stiffness springs; this adaptive structural control system is designed to protect buildings against severe vibration and ground movement. The developed variable stiffness bracing (VSB) system comprises four nonlinear steel leaf springs that provide nonlinear and variable stiffness capacity at different frame displacements. The inelastic actions of the VSB system׳s nonlinear leaf springs keep the energy dissipation characteristics and ductility of moment-resisting frames. At large vibration amplitudes, the VSB device restrains unallowably story drift. Therefore, frames display ductile performance. We developed a mathematical model to simulate the mechanical behavior of the system, including the stiffness nonlinearity of the springs. Moreover, we evaluated the efficiency of the VSB implementation in a single-degree-of-freedom system by dynamically analyzing different models: a moment-resisting frame, a conventional braced frame, and a frame using the VSB system. This article discusses and proves the effectiveness of the proposed system through numerical analysis. |
| first_indexed | 2024-03-06T09:23:28Z |
| format | Article |
| id | upm.eprints-55453 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:23:28Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-554532017-09-14T09:57:48Z http://psasir.upm.edu.my/id/eprint/55453/ Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis Fateh, Amir Hejazi, Farzad Jaafar, Mohd Saleh Abd Karim, Izian Adnan, Azlan This paper presents a new bracing system with variable stiffness springs; this adaptive structural control system is designed to protect buildings against severe vibration and ground movement. The developed variable stiffness bracing (VSB) system comprises four nonlinear steel leaf springs that provide nonlinear and variable stiffness capacity at different frame displacements. The inelastic actions of the VSB system׳s nonlinear leaf springs keep the energy dissipation characteristics and ductility of moment-resisting frames. At large vibration amplitudes, the VSB device restrains unallowably story drift. Therefore, frames display ductile performance. We developed a mathematical model to simulate the mechanical behavior of the system, including the stiffness nonlinearity of the springs. Moreover, we evaluated the efficiency of the VSB implementation in a single-degree-of-freedom system by dynamically analyzing different models: a moment-resisting frame, a conventional braced frame, and a frame using the VSB system. This article discusses and proves the effectiveness of the proposed system through numerical analysis. Elsevier 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55453/1/Design%20of%20a%20variable%20stiffness%20bracing%20system%20mathematical%20modeling%2C%20fabrication%2C%20and.pdf Fateh, Amir and Hejazi, Farzad and Jaafar, Mohd Saleh and Abd Karim, Izian and Adnan, Azlan (2016) Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis. Soil Dynamics and Earthquake Engineering, 80 (2015). pp. 87-101. ISSN 0267-7261; ESSN: 1879-341X http://www.sciencedirect.com/science/article/pii/S0267726115002493 10.1016/j.soildyn.2015.10.009 |
| spellingShingle | Fateh, Amir Hejazi, Farzad Jaafar, Mohd Saleh Abd Karim, Izian Adnan, Azlan Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis |
| title | Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis |
| title_full | Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis |
| title_fullStr | Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis |
| title_full_unstemmed | Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis |
| title_short | Design of a variable stiffness bracing system: mathematical modeling, fabrication, and dynamic analysis |
| title_sort | design of a variable stiffness bracing system mathematical modeling fabrication and dynamic analysis |
| url | http://psasir.upm.edu.my/id/eprint/55453/1/Design%20of%20a%20variable%20stiffness%20bracing%20system%20mathematical%20modeling%2C%20fabrication%2C%20and.pdf |
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