Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars
Failure in direct shear is sudden and catastrophic in concrete structures, Several techniques have been developed for shear strengthening of push-off specimens representing direct shear. In this research, the effectiveness of Near-surface mounted (NSM) FRP and steel bars as a strengthening...
| Main Authors: | , |
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| Format: | Article |
| Language: | Arabic |
| Published: |
University of Sulaimania
2020-06-01
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| Series: | Sulaimani Journal for Engineering Sciences |
| Subjects: | |
| Online Access: | https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol7no2/sjes-10126 |
| _version_ | 1811260754975784960 |
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| author | Rozhno Omer Mustafa1 Mohamed Raouf Abdul-Kadir |
| author_facet | Rozhno Omer Mustafa1 Mohamed Raouf Abdul-Kadir |
| author_sort | Rozhno Omer Mustafa1 |
| collection | DOAJ |
| description | Failure in direct shear is sudden and catastrophic in concrete
structures, Several techniques have been developed for shear
strengthening of push-off specimens representing direct
shear. In this research, the effectiveness of Near-surface
mounted (NSM) FRP and steel bars as a strengthening
technique for direct shear in normal strength concrete (NSC)
and self-compacted concrete (SCC) are studied. As a result of
the experimental work, it was observed that the NSM steel
bars increased the shear capacity by 48 and 44% for both
types of concrete NSC and SCC respectively, while the NSM
CFRP rods increased the shear capacity by 30% and 33% for
both NSC and SCC respectively. It was also observed that
strengthening at 90° was more effective in terms of shear
strength compared to 45° with a difference in the range of 8%
for NSC and 5% for SCC. The analytical results are very close
to the experimental ones.
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| first_indexed | 2024-04-12T18:52:20Z |
| format | Article |
| id | doaj.art-c4cab962ad4e49b7a8dc23974453ed4d |
| institution | Directory Open Access Journal |
| issn | 2410-1699 2415-6655 |
| language | Arabic |
| last_indexed | 2024-04-12T18:52:20Z |
| publishDate | 2020-06-01 |
| publisher | University of Sulaimania |
| record_format | Article |
| series | Sulaimani Journal for Engineering Sciences |
| spelling | doaj.art-c4cab962ad4e49b7a8dc23974453ed4d2022-12-22T03:20:27ZaraUniversity of SulaimaniaSulaimani Journal for Engineering Sciences2410-16992415-66552020-06-0172314710.17656/sjes.10126Direct shear strengthening of NSC and SCC using NSM CFRP and steel barsRozhno Omer Mustafa1 0Mohamed Raouf Abdul-Kadir1University of Sulaimani, College of Engineering, Civil Engineering Department.University of Sulaimani, College of Engineering, Civil Engineering Department.Failure in direct shear is sudden and catastrophic in concrete structures, Several techniques have been developed for shear strengthening of push-off specimens representing direct shear. In this research, the effectiveness of Near-surface mounted (NSM) FRP and steel bars as a strengthening technique for direct shear in normal strength concrete (NSC) and self-compacted concrete (SCC) are studied. As a result of the experimental work, it was observed that the NSM steel bars increased the shear capacity by 48 and 44% for both types of concrete NSC and SCC respectively, while the NSM CFRP rods increased the shear capacity by 30% and 33% for both NSC and SCC respectively. It was also observed that strengthening at 90° was more effective in terms of shear strength compared to 45° with a difference in the range of 8% for NSC and 5% for SCC. The analytical results are very close to the experimental ones. https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol7no2/sjes-10126direct shearnsmstrengtheningcfrp rod. |
| spellingShingle | Rozhno Omer Mustafa1 Mohamed Raouf Abdul-Kadir Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars Sulaimani Journal for Engineering Sciences direct shear nsm strengthening cfrp rod. |
| title | Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars |
| title_full | Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars |
| title_fullStr | Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars |
| title_full_unstemmed | Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars |
| title_short | Direct shear strengthening of NSC and SCC using NSM CFRP and steel bars |
| title_sort | direct shear strengthening of nsc and scc using nsm cfrp and steel bars |
| topic | direct shear nsm strengthening cfrp rod. |
| url | https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol7no2/sjes-10126 |
| work_keys_str_mv | AT rozhnoomermustafa1 directshearstrengtheningofnscandsccusingnsmcfrpandsteelbars AT mohamedraoufabdulkadir directshearstrengtheningofnscandsccusingnsmcfrpandsteelbars |