Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings
Poorly designed reinforced concrete (RC) columns of actual moment-resisting frame (MRF) buildings can undergo Axial Compression Ratios (ACR) so high as their demand exceeds their capacity, even for serviceability gravity load combinations; this lack commonly leads to insufficient seismic strength. N...
- Autores:
-
Villar-Salinas, Sergio
Pacheco Orozco, Sebastián
Carrillo, Julián
López-Almansa, Francisco
- Tipo de recurso:
- Fecha de publicación:
- 2024
- Institución:
- Universidad Tecnológica de Bolívar
- Repositorio:
- Repositorio Institucional UTB
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.utb.edu.co:20.500.12585/12656
- Acceso en línea:
- https://hdl.handle.net/20.500.12585/12656
- Palabra clave:
- Axial Compression Ratio
Seismic Performance
Modal Pushover Analysis
Steel Jacketing
Retrofitted RC Buildings
- Rights
- embargoedAccess
- License
- http://purl.org/coar/access_right/c_f1cf
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Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| title |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| spellingShingle |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings Axial Compression Ratio Seismic Performance Modal Pushover Analysis Steel Jacketing Retrofitted RC Buildings |
| title_short |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| title_full |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| title_fullStr |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| title_full_unstemmed |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| title_sort |
Influence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildings |
| dc.creator.fl_str_mv |
Villar-Salinas, Sergio Pacheco Orozco, Sebastián Carrillo, Julián López-Almansa, Francisco |
| dc.contributor.author.none.fl_str_mv |
Villar-Salinas, Sergio Pacheco Orozco, Sebastián Carrillo, Julián López-Almansa, Francisco |
| dc.subject.keywords.spa.fl_str_mv |
Axial Compression Ratio Seismic Performance Modal Pushover Analysis Steel Jacketing Retrofitted RC Buildings |
| topic |
Axial Compression Ratio Seismic Performance Modal Pushover Analysis Steel Jacketing Retrofitted RC Buildings |
| description |
Poorly designed reinforced concrete (RC) columns of actual moment-resisting frame (MRF) buildings can undergo Axial Compression Ratios (ACR) so high as their demand exceeds their capacity, even for serviceability gravity load combinations; this lack commonly leads to insufficient seismic strength. Nonetheless, many seismic design codes do not specify limits for ACR. The main contribution of this research is to investigate the need to limit the ACR in seismic design. For this purpose, three prototype 6 and 11-story RC MRF buildings are analyzed in this paper; these buildings have columns undergoing excessive ACR, according to the limits prescribed by standards. To better that situation, three types of alterations are performed: retrofitting the abovementioned overloaded columns by steel jacketing, increasing the concrete strength, and reducing the number of stories. Several finite element analyses are conducted using the well-known software SAP2000 and the results are used for further calculations. Code-type and pushover analyses are performed on the original and retrofitted buildings; the suitability of the other modified buildings is checked by code-type analyses only. The obtained results suggest that ACR is a rather reliable indicator of the final building strength; hence, apparently, limiting the ACR in the standards (for early stages of design) might avoid unnecessary verifications |
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2024 |
| dc.date.accessioned.none.fl_str_mv |
2024-04-09T20:04:33Z |
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2024-04-09T20:04:33Z |
| dc.date.issued.none.fl_str_mv |
2024-04-03 |
| dc.date.submitted.none.fl_str_mv |
2024-04-09 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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publishedVersion |
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Villar-Salinas, S., Pacheco, S., Carrillo, J., & López-Almansa, F. (2024). Analysis of the influence of high axial compression ratio in RC columns on the structural response of MRF buildings. Structural Engineering and Mechanics, 90(1), 51–70. https://doi.org/10.12989/sem.2024.90.1.051 |
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https://hdl.handle.net/20.500.12585/12656 |
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10.12989/sem.2024.90.1.051 |
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Universidad Tecnológica de Bolívar |
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Repositorio Universidad Tecnológica de Bolívar |
| identifier_str_mv |
Villar-Salinas, S., Pacheco, S., Carrillo, J., & López-Almansa, F. (2024). Analysis of the influence of high axial compression ratio in RC columns on the structural response of MRF buildings. Structural Engineering and Mechanics, 90(1), 51–70. https://doi.org/10.12989/sem.2024.90.1.051 10.12989/sem.2024.90.1.051 Universidad Tecnológica de Bolívar Repositorio Universidad Tecnológica de Bolívar |
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https://hdl.handle.net/20.500.12585/12656 |
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eng |
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eng |
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embargoedAccess |
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20 págs. |
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Cartagena de Indias |
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Campus Tecnológico |
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Ingeniería Civil |
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Universidad Tecnológica de Bolívar |
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Villar-Salinas, Sergiofc373e68-d8e4-4b76-9a03-14820eeb1be1Pacheco Orozco, Sebastián2238928a-1f03-41ee-8bc9-15841786a3a0Carrillo, Juliándd7f9ce7-789d-48d8-89f1-d931f00f91d2López-Almansa, Francisco889df9cb-41d6-4633-bd56-b9ba6c1676b52024-04-09T20:04:33Z2024-04-09T20:04:33Z2024-04-032024-04-09Villar-Salinas, S., Pacheco, S., Carrillo, J., & López-Almansa, F. (2024). Analysis of the influence of high axial compression ratio in RC columns on the structural response of MRF buildings. Structural Engineering and Mechanics, 90(1), 51–70. https://doi.org/10.12989/sem.2024.90.1.051https://hdl.handle.net/20.500.12585/1265610.12989/sem.2024.90.1.051Universidad Tecnológica de BolívarRepositorio Universidad Tecnológica de BolívarPoorly designed reinforced concrete (RC) columns of actual moment-resisting frame (MRF) buildings can undergo Axial Compression Ratios (ACR) so high as their demand exceeds their capacity, even for serviceability gravity load combinations; this lack commonly leads to insufficient seismic strength. Nonetheless, many seismic design codes do not specify limits for ACR. The main contribution of this research is to investigate the need to limit the ACR in seismic design. For this purpose, three prototype 6 and 11-story RC MRF buildings are analyzed in this paper; these buildings have columns undergoing excessive ACR, according to the limits prescribed by standards. To better that situation, three types of alterations are performed: retrofitting the abovementioned overloaded columns by steel jacketing, increasing the concrete strength, and reducing the number of stories. Several finite element analyses are conducted using the well-known software SAP2000 and the results are used for further calculations. Code-type and pushover analyses are performed on the original and retrofitted buildings; the suitability of the other modified buildings is checked by code-type analyses only. The obtained results suggest that ACR is a rather reliable indicator of the final building strength; hence, apparently, limiting the ACR in the standards (for early stages of design) might avoid unnecessary verificationsFundación Carolina, Universidad Tecnológica de Bolívar, PCEM SAS20 págs.Pdfapplication/pdfengInfluence of High Axial Compression Ratios in RC Columns on the Seismic Response of MRF Buildingsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Axial Compression RatioSeismic PerformanceModal Pushover AnalysisSteel JacketingRetrofitted RC Buildingsinfo:eu-repo/semantics/embargoedAccesshttp://purl.org/coar/access_right/c_f1cfCartagena de IndiasCampus TecnológicoIngeniería CivilPúblico generalAlfarah, B., F. López-Almansa, and S. Oller. 2020. “Numerical Study on the Relevance of Columns Hidden Failure Modes in the Seismic Capacity of Non-Ductile RC Frames.” J. Earthq. 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Part 1: consideration of axial compression ratio.” HKIE Trans., 23 (4): 230–244. https://doi.org/10.1080/1023697X.2016.1232179.Zimos, D. K., V. K. Papanikolaou, A. J. Kappos, and P. E. Mergos. 2020. “Shear-Critical Reinforced Concrete Columns under Increasing Axial Load.” ACI Struct. 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