Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips
This paper aims to investigate the effect of using different configurations of near-surface mounted carbon-fiber-reinforced polymer (NSM-CFRP) strips on the shear strength of strengthened and rehabilitated reinforced concrete (RC) T-beams with different internal shear stirrup spacing. The internal s...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Fibers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-6439/10/12/103 |
| _version_ | 1797459080111980544 |
|---|---|
| author | Ma’en Abdel-Jaber Mu’tasim Abdel-Jaber Hasan Katkhuda Nasim Shatarat Alaa Sulaiman Rola El-Nimri |
| author_facet | Ma’en Abdel-Jaber Mu’tasim Abdel-Jaber Hasan Katkhuda Nasim Shatarat Alaa Sulaiman Rola El-Nimri |
| author_sort | Ma’en Abdel-Jaber |
| collection | DOAJ |
| description | This paper aims to investigate the effect of using different configurations of near-surface mounted carbon-fiber-reinforced polymer (NSM-CFRP) strips on the shear strength of strengthened and rehabilitated reinforced concrete (RC) T-beams with different internal shear stirrup spacing. The internal shear stirrup spacing was 50 and 150 mm. The NSM-CFRP strips were at an inclination of 45° and spaced at 75 and 150 mm. A total of eight beams were tested in this study: two beams without NSM-CFRP as control beams for the purpose of comparison; three beams were strengthened by NSM-CFRP; and three beams were rehabilitated by NSM-CFRP. The experimental shear capacities were compared with the theoretical values predicted by the ACI 440.2R-17. The results indicated that the use of NSM-CFRP strips enhanced the shear capacity for all beams compared to their corresponding control beams. The enhancements in the shear capacity increased with the decrease in the spacing of the internal shear stirrups and NSM-CFRP strips. The ACI 440.2R-17 was conservative in predicting the theoretical shear capacities. |
| first_indexed | 2024-03-09T16:46:17Z |
| format | Article |
| id | doaj.art-cc456a4d3b474a9782a52cc28ebc6fd8 |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-03-09T16:46:17Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-cc456a4d3b474a9782a52cc28ebc6fd82023-11-24T14:46:21ZengMDPI AGFibers2079-64392022-11-01101210310.3390/fib10120103Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer StripsMa’en Abdel-Jaber0Mu’tasim Abdel-Jaber1Hasan Katkhuda2Nasim Shatarat3Alaa Sulaiman4Rola El-Nimri5School of Construction Technology and Built Environment, Faculty of Engineering, Al Hussein Technical University, Amman 11183, JordanDepartment of Civil Engineering, Al-Ahliyya Amman University, Amman 19328, JordanFaculty of Engineering, Department of Civil Engineering, The Hashemite University, P.O. Box 330127, Zarqa 13133, JordanDepartment of Civil Engineering, The University of Jordan, Amman 11942, JordanDepartment of Civil Engineering, The University of Jordan, Amman 11942, JordanDepartment of Civil Engineering, The University of Jordan, Amman 11942, JordanThis paper aims to investigate the effect of using different configurations of near-surface mounted carbon-fiber-reinforced polymer (NSM-CFRP) strips on the shear strength of strengthened and rehabilitated reinforced concrete (RC) T-beams with different internal shear stirrup spacing. The internal shear stirrup spacing was 50 and 150 mm. The NSM-CFRP strips were at an inclination of 45° and spaced at 75 and 150 mm. A total of eight beams were tested in this study: two beams without NSM-CFRP as control beams for the purpose of comparison; three beams were strengthened by NSM-CFRP; and three beams were rehabilitated by NSM-CFRP. The experimental shear capacities were compared with the theoretical values predicted by the ACI 440.2R-17. The results indicated that the use of NSM-CFRP strips enhanced the shear capacity for all beams compared to their corresponding control beams. The enhancements in the shear capacity increased with the decrease in the spacing of the internal shear stirrups and NSM-CFRP strips. The ACI 440.2R-17 was conservative in predicting the theoretical shear capacities.https://www.mdpi.com/2079-6439/10/12/103shear strengthNSMCFRPstirrup spacingexperimental and theoretical analysis |
| spellingShingle | Ma’en Abdel-Jaber Mu’tasim Abdel-Jaber Hasan Katkhuda Nasim Shatarat Alaa Sulaiman Rola El-Nimri Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips Fibers shear strength NSM CFRP stirrup spacing experimental and theoretical analysis |
| title | Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips |
| title_full | Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips |
| title_fullStr | Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips |
| title_full_unstemmed | Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips |
| title_short | Influence of Stirrup Spacing on the Strengthening and Rehabilitating of RC T-beams Using Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Strips |
| title_sort | influence of stirrup spacing on the strengthening and rehabilitating of rc t beams using near surface mounted carbon fiber reinforced polymer strips |
| topic | shear strength NSM CFRP stirrup spacing experimental and theoretical analysis |
| url | https://www.mdpi.com/2079-6439/10/12/103 |
| work_keys_str_mv | AT maenabdeljaber influenceofstirrupspacingonthestrengtheningandrehabilitatingofrctbeamsusingnearsurfacemountedcarbonfiberreinforcedpolymerstrips AT mutasimabdeljaber influenceofstirrupspacingonthestrengtheningandrehabilitatingofrctbeamsusingnearsurfacemountedcarbonfiberreinforcedpolymerstrips AT hasankatkhuda influenceofstirrupspacingonthestrengtheningandrehabilitatingofrctbeamsusingnearsurfacemountedcarbonfiberreinforcedpolymerstrips AT nasimshatarat influenceofstirrupspacingonthestrengtheningandrehabilitatingofrctbeamsusingnearsurfacemountedcarbonfiberreinforcedpolymerstrips AT alaasulaiman influenceofstirrupspacingonthestrengtheningandrehabilitatingofrctbeamsusingnearsurfacemountedcarbonfiberreinforcedpolymerstrips AT rolaelnimri influenceofstirrupspacingonthestrengtheningandrehabilitatingofrctbeamsusingnearsurfacemountedcarbonfiberreinforcedpolymerstrips |