A Parametric Study on Behavior of Elliptical Cantilever Deep Beams
This parametric study used finite element method (ETABS 2019), on 20 elliptical reinforced concrete cantilever deep beam specimens that have rectangular sections. Five parameters were taken into consideration: beam height, beam width, concrete compressive strength, load position and load type. Resu...
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| Format: | Article |
| Language: | English |
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University of Diyala
2022-12-01
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| Series: | Diyala Journal of Engineering Sciences |
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| Online Access: | https://djes.info/index.php/djes/article/view/1018 |
| _version_ | 1811291796888616960 |
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| author | Baidaa Nihad Khattab S. Abdul-Razzaq Adham Abdulsattar Hameed |
| author_facet | Baidaa Nihad Khattab S. Abdul-Razzaq Adham Abdulsattar Hameed |
| author_sort | Baidaa Nihad |
| collection | DOAJ |
| description |
This parametric study used finite element method (ETABS 2019), on 20 elliptical reinforced concrete cantilever deep beam specimens that have rectangular sections. Five parameters were taken into consideration: beam height, beam width, concrete compressive strength, load position and load type. Results showed that when the beam height was increased by 12%–66.5%, the negative and torsional moments and load capacity increased by about 11.23%–76.33%, 11.2%–77% and 11.1%–78%, respectively, whereas deflection decreased by about 15%–39%. The negative and torsional moments and load capacity increased by 26.13%–166.53%, 27%–172.5% and 28%–180%, respectively, and a decrease in deflection of about 1.73%–2.3% took place when beam width increased by about 14.3%–81%. In addition, increasing the compressive strength of concrete by 7.5%–36% led to an increase in the negative moments, torsional moments, load capacity, and deflection by about 8.22%–19.2%, 8.7%–20.4%, 9.4%–22% and 4.7%–7.1%, respectively. When changing the load type from concentrated to uniformly distributed over a third of the span’s length, two-thirds of the span’s length and then over the full span’s length, the negative moments increased by 5.23%, 8.47% and 52.67%, whereas torsional moments decreased by 1.1%, 1.12% and 16%, respectively. Finally, placing the concentrated load at a distance of 0.75, 0.5 and 0.25 of the span lengths led the negative moments to increase by 56.9%, 102.3% and 110%, respectively, whereas torsional moments decreased by 8.64%, 25%, and 58.3%, respectively. The load capacity increased by 87.5%, 243.75% and 556.25%, respectively, accompanied by a decrease in the deflection of the free end by 3.24%, 17.65% and 49.8%, respectively.
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| first_indexed | 2024-04-13T04:34:47Z |
| format | Article |
| id | doaj.art-1675aea1c2b14379b4de9b38fd2d862f |
| institution | Directory Open Access Journal |
| issn | 1999-8716 2616-6909 |
| language | English |
| last_indexed | 2024-04-13T04:34:47Z |
| publishDate | 2022-12-01 |
| publisher | University of Diyala |
| record_format | Article |
| series | Diyala Journal of Engineering Sciences |
| spelling | doaj.art-1675aea1c2b14379b4de9b38fd2d862f2022-12-22T03:02:12ZengUniversity of DiyalaDiyala Journal of Engineering Sciences1999-87162616-69092022-12-0115410.24237/djes.2022.15403A Parametric Study on Behavior of Elliptical Cantilever Deep BeamsBaidaa Nihad0Khattab S. Abdul-Razzaq 1Adham Abdulsattar Hameed 2Department of Civil Engineering, University of Diyala, 32001 Diyala, Iraq Department of Civil Engineering, University of Diyala, 32001 Diyala, Iraq Belgorod State Technological University named after V.G. Shukhov, Russia This parametric study used finite element method (ETABS 2019), on 20 elliptical reinforced concrete cantilever deep beam specimens that have rectangular sections. Five parameters were taken into consideration: beam height, beam width, concrete compressive strength, load position and load type. Results showed that when the beam height was increased by 12%–66.5%, the negative and torsional moments and load capacity increased by about 11.23%–76.33%, 11.2%–77% and 11.1%–78%, respectively, whereas deflection decreased by about 15%–39%. The negative and torsional moments and load capacity increased by 26.13%–166.53%, 27%–172.5% and 28%–180%, respectively, and a decrease in deflection of about 1.73%–2.3% took place when beam width increased by about 14.3%–81%. In addition, increasing the compressive strength of concrete by 7.5%–36% led to an increase in the negative moments, torsional moments, load capacity, and deflection by about 8.22%–19.2%, 8.7%–20.4%, 9.4%–22% and 4.7%–7.1%, respectively. When changing the load type from concentrated to uniformly distributed over a third of the span’s length, two-thirds of the span’s length and then over the full span’s length, the negative moments increased by 5.23%, 8.47% and 52.67%, whereas torsional moments decreased by 1.1%, 1.12% and 16%, respectively. Finally, placing the concentrated load at a distance of 0.75, 0.5 and 0.25 of the span lengths led the negative moments to increase by 56.9%, 102.3% and 110%, respectively, whereas torsional moments decreased by 8.64%, 25%, and 58.3%, respectively. The load capacity increased by 87.5%, 243.75% and 556.25%, respectively, accompanied by a decrease in the deflection of the free end by 3.24%, 17.65% and 49.8%, respectively. https://djes.info/index.php/djes/article/view/1018Parametric studyReinforced ConcreteCantilever, Deep BeamsFinite Element |
| spellingShingle | Baidaa Nihad Khattab S. Abdul-Razzaq Adham Abdulsattar Hameed A Parametric Study on Behavior of Elliptical Cantilever Deep Beams Diyala Journal of Engineering Sciences Parametric study Reinforced Concrete Cantilever, Deep Beams Finite Element |
| title | A Parametric Study on Behavior of Elliptical Cantilever Deep Beams |
| title_full | A Parametric Study on Behavior of Elliptical Cantilever Deep Beams |
| title_fullStr | A Parametric Study on Behavior of Elliptical Cantilever Deep Beams |
| title_full_unstemmed | A Parametric Study on Behavior of Elliptical Cantilever Deep Beams |
| title_short | A Parametric Study on Behavior of Elliptical Cantilever Deep Beams |
| title_sort | parametric study on behavior of elliptical cantilever deep beams |
| topic | Parametric study Reinforced Concrete Cantilever, Deep Beams Finite Element |
| url | https://djes.info/index.php/djes/article/view/1018 |
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