Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams
Current formulations proposed by Eurocode 8 part 3 for the inelastic deformations of existing reinforced concrete members are assessed separately for wide beams (WB) and conventional deep beams (DB). The current approach, based on a large experimental database of members, predicts larger ultimate ch...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/11/2015 |
| _version_ | 1797465786089996288 |
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| author | Fernando Gómez-Martínez Agustín Pérez-García |
| author_facet | Fernando Gómez-Martínez Agustín Pérez-García |
| author_sort | Fernando Gómez-Martínez |
| collection | DOAJ |
| description | Current formulations proposed by Eurocode 8 part 3 for the inelastic deformations of existing reinforced concrete members are assessed separately for wide beams (WB) and conventional deep beams (DB). The current approach, based on a large experimental database of members, predicts larger ultimate chord rotation but lower chord rotation ductility for WB rather than for DB despite the similar curvature ductility, due to lower plastic hinge lengths in WB. However, if the data are disaggregated into DB and WB, predicted chord rotations are consistently conservative for DB and not conservative for WB if compared with experimental values, especially at ultimate deformation. Thus, plastic hinge length may be even greater for DB in comparison to WB. Therefore, some feasible corrections of the formulations for chord rotations are proposed, in order to reduce the bias and thus increase the robustness of the model for cross-section shape variability. |
| first_indexed | 2024-03-09T18:26:32Z |
| format | Article |
| id | doaj.art-8c232e4261054476b648a703cec4b311 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T18:26:32Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-8c232e4261054476b648a703cec4b3112023-11-24T07:51:23ZengMDPI AGBuildings2075-53092022-11-011211201510.3390/buildings12112015Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete BeamsFernando Gómez-Martínez0Agustín Pérez-García1Department of Structural Mechanics and Hydraulic Engineering, Universidad de Granada, Campus Fuentenueva S/N, 18071 Granada, SpainDepartment of Mechanics of the Continuum Media and Theory of Structures, Universitat Politècnica de València, Camí de Vera, S/N, 46022 Valencia, SpainCurrent formulations proposed by Eurocode 8 part 3 for the inelastic deformations of existing reinforced concrete members are assessed separately for wide beams (WB) and conventional deep beams (DB). The current approach, based on a large experimental database of members, predicts larger ultimate chord rotation but lower chord rotation ductility for WB rather than for DB despite the similar curvature ductility, due to lower plastic hinge lengths in WB. However, if the data are disaggregated into DB and WB, predicted chord rotations are consistently conservative for DB and not conservative for WB if compared with experimental values, especially at ultimate deformation. Thus, plastic hinge length may be even greater for DB in comparison to WB. Therefore, some feasible corrections of the formulations for chord rotations are proposed, in order to reduce the bias and thus increase the robustness of the model for cross-section shape variability.https://www.mdpi.com/2075-5309/12/11/2015wide beamsdeep beamschord rotationductilityplastic hinge lengthEurocode 8 |
| spellingShingle | Fernando Gómez-Martínez Agustín Pérez-García Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams Buildings wide beams deep beams chord rotation ductility plastic hinge length Eurocode 8 |
| title | Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams |
| title_full | Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams |
| title_fullStr | Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams |
| title_full_unstemmed | Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams |
| title_short | Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams |
| title_sort | yielding and ultimate deformations of wide and deep reinforced concrete beams |
| topic | wide beams deep beams chord rotation ductility plastic hinge length Eurocode 8 |
| url | https://www.mdpi.com/2075-5309/12/11/2015 |
| work_keys_str_mv | AT fernandogomezmartinez yieldingandultimatedeformationsofwideanddeepreinforcedconcretebeams AT agustinperezgarcia yieldingandultimatedeformationsofwideanddeepreinforcedconcretebeams |