Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review
The ability of structures to withstand seismic loads is the most important feature of earthquake engineering. Because of their high stiffness and lateral strength, concentrically braced frames (CBF) are one of the most prevalent resisting methods in engineering structures. Under moderate seismic eve...
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Semnan University
2023-05-01
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| Series: | Journal of Rehabilitation in Civil Engineering |
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| Online Access: | https://civiljournal.semnan.ac.ir/article_6658_2f97e4a4e54e04c583968494474367dd.pdf |
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| author | Atefeh Soleymani Hamed Saffari |
| author_facet | Atefeh Soleymani Hamed Saffari |
| author_sort | Atefeh Soleymani |
| collection | DOAJ |
| description | The ability of structures to withstand seismic loads is the most important feature of earthquake engineering. Because of their high stiffness and lateral strength, concentrically braced frames (CBF) are one of the most prevalent resisting methods in engineering structures. Under moderate seismic events, CBFs have limited lateral displacement capability, resulting in structural damage and substantial post-earthquake expenses. However, when these constructions are exposed to moderate to severe seismic events, their compression members start to buckle. Buckling these compression members in CBF also reduces ductility and causes hysteresis curve deterioration. As a result, they become brittle and have a limited capacity to dissipate seismic energy. On the other hand, conventional CBF constructions exposed to seismic hazards may display an unacceptable soft-story mechanism, in which drift and damage are localized in a single-story, while all the other stories are comparatively unscathed. Several research works have improved CBF seismic behavior, and different strategies have resulted in seismic improvement. This paper presented an overview of seismic improvement modifications of CBF, which have been studied in the literature. A review of current studies to better understand and analyze CBF behavior is presented. |
| format | Article |
| id | doaj-art-e71a4af7be7c4bb38da41997f955cac9 |
| institution | Kabale University |
| issn | 2345-4415 2345-4423 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj-art-e71a4af7be7c4bb38da41997f955cac92025-01-20T11:34:32ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232023-05-0111215317710.22075/jrce.2022.26179.16116658Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based ReviewAtefeh Soleymani0Hamed Saffari1Ph.D. Candidate of Structural Engineering, Department of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, IranProfessor, Department of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, IranThe ability of structures to withstand seismic loads is the most important feature of earthquake engineering. Because of their high stiffness and lateral strength, concentrically braced frames (CBF) are one of the most prevalent resisting methods in engineering structures. Under moderate seismic events, CBFs have limited lateral displacement capability, resulting in structural damage and substantial post-earthquake expenses. However, when these constructions are exposed to moderate to severe seismic events, their compression members start to buckle. Buckling these compression members in CBF also reduces ductility and causes hysteresis curve deterioration. As a result, they become brittle and have a limited capacity to dissipate seismic energy. On the other hand, conventional CBF constructions exposed to seismic hazards may display an unacceptable soft-story mechanism, in which drift and damage are localized in a single-story, while all the other stories are comparatively unscathed. Several research works have improved CBF seismic behavior, and different strategies have resulted in seismic improvement. This paper presented an overview of seismic improvement modifications of CBF, which have been studied in the literature. A review of current studies to better understand and analyze CBF behavior is presented.https://civiljournal.semnan.ac.ir/article_6658_2f97e4a4e54e04c583968494474367dd.pdfseismic improvementrehabilitationconcentrically braced framesoft-storyinter-story drift |
| spellingShingle | Atefeh Soleymani Hamed Saffari Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review Journal of Rehabilitation in Civil Engineering seismic improvement rehabilitation concentrically braced frame soft-story inter-story drift |
| title | Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review |
| title_full | Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review |
| title_fullStr | Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review |
| title_full_unstemmed | Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review |
| title_short | Seismic Improvement and Rehabilitation of Steel Concentric Braced Frames: A Framework-Based Review |
| title_sort | seismic improvement and rehabilitation of steel concentric braced frames a framework based review |
| topic | seismic improvement rehabilitation concentrically braced frame soft-story inter-story drift |
| url | https://civiljournal.semnan.ac.ir/article_6658_2f97e4a4e54e04c583968494474367dd.pdf |
| work_keys_str_mv | AT atefehsoleymani seismicimprovementandrehabilitationofsteelconcentricbracedframesaframeworkbasedreview AT hamedsaffari seismicimprovementandrehabilitationofsteelconcentricbracedframesaframeworkbasedreview |