File Download
Supplementary

Conference Paper: Field testing of RC slabs with openings strengthened with CFRP

TitleField testing of RC slabs with openings strengthened with CFRP
Authors
Issue Date2008
Citation
The 4th International Conference on FRP Composites in Civil Engineering (CICE2008), Zurich, Switzerland, 22-24 July 2008. In Conference Proceedings, 2008, p. 1-6 How to Cite?
AbstractIntroducing openings in existing reinforced concrete (RC) slabs can severely weaken the slabs due to the cut out of both concrete and reinforcing steel. There are several traditional approaches to strengthen RC slabs with openings; however these approaches can be cumbersome, expensive, and may require significant usable floor area. This paper reports field tests on the use of Carbon Fiber Reinforced Polymers (CFRP) strengthening alternatives to restore the flexural capacity of the RC slab after having large openings cut out in the positive moment region. The uniqueness of this study is that the tests were performed on an existing multi-storey RC structure that was scheduled for demolition. Testing a real structure allowed incorporating factors and boundary conditions that typically cannot be simulated in the laboratory. Five tests on five different slabs were conducted to evaluate the ability of the CFRP strengthening alternatives to restore the flexural capacity of the slab after introducing the openings. Three different strengthening techniques were investigated to determine the most effective system for strengthening. The three different strengthening techniques are the use of externally bonded (EB) CFRP laminates, EB CFRP laminates with CFRP anchors, and Near Surface Mounted (NSM) CFRP strips. Test results showed that the three strengthening techniques enhanced the load-carrying capacities of the slabs with openings with the NSM technique more effective than the EB technique. Use of CFRP anchors with EB laminates prevented complete detachment, and hence enabled the slab to restore its full flexural capacity.
Persistent Identifierhttp://hdl.handle.net/10722/63245

 

DC FieldValueLanguage
dc.contributor.authorSeliem, HMen_HK
dc.contributor.authorSumner, EAen_HK
dc.contributor.authorSeracino, Ren_HK
dc.contributor.authorSmith, STen_HK
dc.date.accessioned2010-07-13T04:19:19Z-
dc.date.available2010-07-13T04:19:19Z-
dc.date.issued2008en_HK
dc.identifier.citationThe 4th International Conference on FRP Composites in Civil Engineering (CICE2008), Zurich, Switzerland, 22-24 July 2008. In Conference Proceedings, 2008, p. 1-6en_HK
dc.identifier.urihttp://hdl.handle.net/10722/63245-
dc.description.abstractIntroducing openings in existing reinforced concrete (RC) slabs can severely weaken the slabs due to the cut out of both concrete and reinforcing steel. There are several traditional approaches to strengthen RC slabs with openings; however these approaches can be cumbersome, expensive, and may require significant usable floor area. This paper reports field tests on the use of Carbon Fiber Reinforced Polymers (CFRP) strengthening alternatives to restore the flexural capacity of the RC slab after having large openings cut out in the positive moment region. The uniqueness of this study is that the tests were performed on an existing multi-storey RC structure that was scheduled for demolition. Testing a real structure allowed incorporating factors and boundary conditions that typically cannot be simulated in the laboratory. Five tests on five different slabs were conducted to evaluate the ability of the CFRP strengthening alternatives to restore the flexural capacity of the slab after introducing the openings. Three different strengthening techniques were investigated to determine the most effective system for strengthening. The three different strengthening techniques are the use of externally bonded (EB) CFRP laminates, EB CFRP laminates with CFRP anchors, and Near Surface Mounted (NSM) CFRP strips. Test results showed that the three strengthening techniques enhanced the load-carrying capacities of the slabs with openings with the NSM technique more effective than the EB technique. Use of CFRP anchors with EB laminates prevented complete detachment, and hence enabled the slab to restore its full flexural capacity.-
dc.languageengen_HK
dc.relation.ispartofProceedings of the 4th International Conference on FRP Composites in Civil Engineering (CICE 2008)-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleField testing of RC slabs with openings strengthened with CFRPen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailSmith, ST: stsmith@hku.hken_HK
dc.identifier.authoritySmith, ST=rp00168en_HK
dc.description.naturepostprint-
dc.identifier.hkuros164622en_HK
dc.identifier.spage1-
dc.identifier.epage6-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats