Seismic collapse assessment of archetype frames with ductile concrete beam hinges
Highly ductile cement-based materials have emerged as alternatives to conventional concrete materials to improve the seismic resistance of reinforced concrete (RC) structures. While experimental and numerical research on the behavior of individual components has provided significant knowledge on ele...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Resilient Cities and Structures |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772741623000091 |
| _version_ | 1797846392440356864 |
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| author | Hasan Tariq Ezra A. Jampole Matthew J. Bandelt |
| author_facet | Hasan Tariq Ezra A. Jampole Matthew J. Bandelt |
| author_sort | Hasan Tariq |
| collection | DOAJ |
| description | Highly ductile cement-based materials have emerged as alternatives to conventional concrete materials to improve the seismic resistance of reinforced concrete (RC) structures. While experimental and numerical research on the behavior of individual components has provided significant knowledge on element-level response, relatively little is known about how ductile cement-based materials influence system-level behavior in seismic applications. This study uses recently developed lumped-plasticity models to simulate the unique failure characteristics and ductility of reinforced ductile-cement-based materials in beam hinges and applies them in the assessment of archetype frame structures. Numerous story heights (four, eight, and twelve), frame configurations (perimeter vs. space), materials (conventional vs. ductile concrete), and replacement mechanisms within the beam hinges are considered in the seismic analysis of the archetype structures. Results and comparisons are made in terms of the probability of collapse at 2% in 50-year ground motion, mean annual frequency of collapse, and adjusted collapse margin ratio (ACMR) across archetype structures. The results show that engineered HPFRCCs in beam plastic-hinge regions can improve the seismic safety of moment frame buildings with higher collapse margin ratios, lower probability of collapse, and the ability to withstand large deformations. Data is also reported on how ductile concrete materials can reduce concrete volume and longitudinal reinforcement tonnage across frame configurations and story heights while maintaining or improving seismic resistance of the structural system. Results demonstrate future research needs to assess life-cycle costs, predict column hinge behavior, and develop code-based design methods for structural systems using highly ductile concrete materials. |
| first_indexed | 2024-04-09T17:54:14Z |
| format | Article |
| id | doaj.art-f85d8e97c1d34f2e87d7e35871aebe0f |
| institution | Directory Open Access Journal |
| issn | 2772-7416 |
| language | English |
| last_indexed | 2024-04-09T17:54:14Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Resilient Cities and Structures |
| spelling | doaj.art-f85d8e97c1d34f2e87d7e35871aebe0f2023-04-15T05:55:45ZengElsevierResilient Cities and Structures2772-74162023-03-0121103119Seismic collapse assessment of archetype frames with ductile concrete beam hingesHasan Tariq0Ezra A. Jampole1Matthew J. Bandelt2Thornton Tomasetti, New York, NY, USABuildings and Structures Group, Exponent, New York, NY, USACorresponding author.; John A. Reif, Jr., Dept. of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ, USAHighly ductile cement-based materials have emerged as alternatives to conventional concrete materials to improve the seismic resistance of reinforced concrete (RC) structures. While experimental and numerical research on the behavior of individual components has provided significant knowledge on element-level response, relatively little is known about how ductile cement-based materials influence system-level behavior in seismic applications. This study uses recently developed lumped-plasticity models to simulate the unique failure characteristics and ductility of reinforced ductile-cement-based materials in beam hinges and applies them in the assessment of archetype frame structures. Numerous story heights (four, eight, and twelve), frame configurations (perimeter vs. space), materials (conventional vs. ductile concrete), and replacement mechanisms within the beam hinges are considered in the seismic analysis of the archetype structures. Results and comparisons are made in terms of the probability of collapse at 2% in 50-year ground motion, mean annual frequency of collapse, and adjusted collapse margin ratio (ACMR) across archetype structures. The results show that engineered HPFRCCs in beam plastic-hinge regions can improve the seismic safety of moment frame buildings with higher collapse margin ratios, lower probability of collapse, and the ability to withstand large deformations. Data is also reported on how ductile concrete materials can reduce concrete volume and longitudinal reinforcement tonnage across frame configurations and story heights while maintaining or improving seismic resistance of the structural system. Results demonstrate future research needs to assess life-cycle costs, predict column hinge behavior, and develop code-based design methods for structural systems using highly ductile concrete materials.http://www.sciencedirect.com/science/article/pii/S2772741623000091Lumped-plasticity modelArchetype framesHPFRCC Plastic-hingeCollapse assessmentMean annual frequency of collapse |
| spellingShingle | Hasan Tariq Ezra A. Jampole Matthew J. Bandelt Seismic collapse assessment of archetype frames with ductile concrete beam hinges Resilient Cities and Structures Lumped-plasticity model Archetype frames HPFRCC Plastic-hinge Collapse assessment Mean annual frequency of collapse |
| title | Seismic collapse assessment of archetype frames with ductile concrete beam hinges |
| title_full | Seismic collapse assessment of archetype frames with ductile concrete beam hinges |
| title_fullStr | Seismic collapse assessment of archetype frames with ductile concrete beam hinges |
| title_full_unstemmed | Seismic collapse assessment of archetype frames with ductile concrete beam hinges |
| title_short | Seismic collapse assessment of archetype frames with ductile concrete beam hinges |
| title_sort | seismic collapse assessment of archetype frames with ductile concrete beam hinges |
| topic | Lumped-plasticity model Archetype frames HPFRCC Plastic-hinge Collapse assessment Mean annual frequency of collapse |
| url | http://www.sciencedirect.com/science/article/pii/S2772741623000091 |
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