Show simple item record

dc.contributor.supervisorEl-Salakawy, Ehab (Civil Engineering)en_US
dc.contributor.authorMady, Mohamed Hassan Abdelhamed
dc.date.accessioned2011-08-25T15:12:02Z
dc.date.available2011-08-25T15:12:02Z
dc.date.issued2011-08-25
dc.identifier.urihttp://hdl.handle.net/1993/4773
dc.description.abstractReinforced concrete beam-column joints (BCJs) are commonly used in structures such as parking garages, multi-storey industrial buildings and road overpasses, which might be exposed to extreme weathering conditions and the application of de-icing salts. The use of the non-corrodible fiber-reinforced polymer (FRP) reinforcing bars in such structures is beneficial to overcome the steel-corrosion problems. However, FRP materials exhibit linear-elastic stress-strain characteristics up to failure, which raises concerns on their performance in BCJs where energy dissipation, through plastic behaviour, is required. The objective of this research project is to assess the seismic behaviour of concrete BCJs reinforced with FRP bars and stirrups. An experimental program was conducted at the University of Manitoba to participate in achieving this objective. Eight full-scale exterior T-shaped BCJs prototypes were constructed and tested under simulated seismic load conditions. The longitudinal and transversal reinforcement types and ratios for the beam and the columns were the main investigated parameters. The experimental results showed that the GFRP reinforced joints can successfully sustain a 4.0% drift ratio without any significant residual deformation. This indicates the feasibility of using GFRP bars and stirrups as reinforcement in the BCJs subjected to seismic-type loading. It was also concluded that, increasing the beam reinforcement ratio, while satisfying the strong column-weak beam concept, can enhance the ability of the joint to dissipate seismic energy. An analytical investigation was conducted through constructing a finite element model using ANSYS-software. The model was verified against the experimental results in this research. Then, a parametric study was performed on number of different parameters known to affect such joints including column axial load, concrete compressive strength, flexural strength ratio and joint transverse reinforcement. It was concluded that 70% of the column axial load capacity can be recommended as an upper limit to the applied axial loads on the column to avoid damage occurrence within the joint. It was also concluded that a minimum flexural strength ratio of 1.50 is recommended to ensure the strong-column weak-beam mechanism. In addition, a minimum joint transverse reinforcement ratio of 0.60% is recommended to insure that the failure will not occur in the joint zone.en_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBeam-Column Jointsen_US
dc.subjectGFRP Barsen_US
dc.subjectGFRP Stirrupsen_US
dc.subjectSeismic loadingen_US
dc.titleSeismic Behaviour of Exterior Beam-Column Joints Reinforced with FRP Bars and Stirrupsen_US
dc.typeinfo:eu-repo/semantics/doctoralThesis
dc.typedoctoral thesisen_US
dc.degree.disciplineCivil Engineeringen_US
dc.contributor.examiningcommitteeRattanawangcharoen, Nipon (Civil Engineering) Wang, Quan(Mechanical and Manufacturing Engineering) Rizkalla, Sami (Civil Engineering - North Carolina State University)en_US
dc.degree.levelDoctor of Philosophy (Ph.D.)en_US
dc.description.noteOctober 2011en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record