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- Publisher Website: 10.12989/sem.2021.77.6.705
- Scopus: eid_2-s2.0-85103641865
- WOS: WOS:000634754200001
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Article: Axial strengthening of RC columns by direct fastening of steel plates
Title | Axial strengthening of RC columns by direct fastening of steel plates |
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Authors | |
Keywords | RC column strengthening steel plate direct fastening passive confinement |
Issue Date | 2021 |
Publisher | Techno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=sem&subpage=5 |
Citation | Structural Engineering and Mechanics, 2021, v. 77 n. 6, p. 705-720 How to Cite? |
Abstract | Reinforced concrete (RC) columns are the primary type of vertical support used in building structures that sustain vertical loads. However, their strength may be insufficient due to fire, earthquake or volatile environments. The load demand may be increased due to new functional usages of the structure. The deformability of concrete columns can be greatly reduced under high axial load conditions. In response, a novel steel encasement that distinguishes from the traditional steel jacketing that is assembled by welding or bolt is developed. This novel strengthening method features easy installation and quick strengthening because direct fastening is used to connect the four steel plates surrounding the column. This new connection method is usually used to quickly and stably connect two steel components by driving high strength fastener into the steel components. The connections together with the steel plates behave like transverse reinforcement, which can provide passive confinement to the concrete. The confined column along with the steel plates resist the axial load. By this way, the axial load capacity and deformability of the column can be enhanced. Eight columns are tested to examine the reliability and effectiveness of the proposed method. The effects of the vertical spacing between adjacent connections, thickness of the steel plate and number of fasteners in each connection are studied to identify the critical parameters which affect the load bearing performance and deformation behavior. Lastly, a theoretical model is proposed for predicting the axial load capacity of the strengthened RC columns. |
Persistent Identifier | http://hdl.handle.net/10722/301257 |
ISSN | 2023 Impact Factor: 2.2 2023 SCImago Journal Rankings: 0.382 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | SHAN, Z | - |
dc.contributor.author | Su, KL | - |
dc.date.accessioned | 2021-07-27T08:08:27Z | - |
dc.date.available | 2021-07-27T08:08:27Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Structural Engineering and Mechanics, 2021, v. 77 n. 6, p. 705-720 | - |
dc.identifier.issn | 1225-4568 | - |
dc.identifier.uri | http://hdl.handle.net/10722/301257 | - |
dc.description.abstract | Reinforced concrete (RC) columns are the primary type of vertical support used in building structures that sustain vertical loads. However, their strength may be insufficient due to fire, earthquake or volatile environments. The load demand may be increased due to new functional usages of the structure. The deformability of concrete columns can be greatly reduced under high axial load conditions. In response, a novel steel encasement that distinguishes from the traditional steel jacketing that is assembled by welding or bolt is developed. This novel strengthening method features easy installation and quick strengthening because direct fastening is used to connect the four steel plates surrounding the column. This new connection method is usually used to quickly and stably connect two steel components by driving high strength fastener into the steel components. The connections together with the steel plates behave like transverse reinforcement, which can provide passive confinement to the concrete. The confined column along with the steel plates resist the axial load. By this way, the axial load capacity and deformability of the column can be enhanced. Eight columns are tested to examine the reliability and effectiveness of the proposed method. The effects of the vertical spacing between adjacent connections, thickness of the steel plate and number of fasteners in each connection are studied to identify the critical parameters which affect the load bearing performance and deformation behavior. Lastly, a theoretical model is proposed for predicting the axial load capacity of the strengthened RC columns. | - |
dc.language | eng | - |
dc.publisher | Techno-Press. The Journal's web site is located at http://technopress.kaist.ac.kr/?journal=sem&subpage=5 | - |
dc.relation.ispartof | Structural Engineering and Mechanics | - |
dc.subject | RC column | - |
dc.subject | strengthening | - |
dc.subject | steel plate | - |
dc.subject | direct fastening | - |
dc.subject | passive confinement | - |
dc.title | Axial strengthening of RC columns by direct fastening of steel plates | - |
dc.type | Article | - |
dc.identifier.email | Su, KL: klsu@hkucc.hku.hk | - |
dc.identifier.authority | Su, KL=rp00072 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.12989/sem.2021.77.6.705 | - |
dc.identifier.scopus | eid_2-s2.0-85103641865 | - |
dc.identifier.hkuros | 323658 | - |
dc.identifier.volume | 77 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | 705 | - |
dc.identifier.epage | 720 | - |
dc.identifier.isi | WOS:000634754200001 | - |
dc.publisher.place | Republic of Korea | - |