Evaluation of Reinforcement Detailing in Corner Beam-Column Joints
| dc.contributor.advisor | Girma, Zerayohannes (PhD) | |
| dc.contributor.author | Linda, Getachew | |
| dc.date.accessioned | 2019-05-31T06:03:42Z | |
| dc.date.accessioned | 2023-11-11T12:56:24Z | |
| dc.date.available | 2019-05-31T06:03:42Z | |
| dc.date.available | 2023-11-11T12:56:24Z | |
| dc.date.issued | 2018-11 | |
| dc.description.abstract | Structural joints in a rigid frame should be capable of sustaining forces higher than those of the connecting members. However, while beams and columns are designed and detailed with considerable care, the same cannot be said about the joints in RC rigid frames. The structural behavior will be different from that assumed in the analysis and design, if the joints are incapable of sustaining the forces and deformations induced due to the transfer of forces among the members meeting at the joint. A key objective in structural design is to produce structures that have adequate capacity for the load they would be subjected to in their design life. So, how does the reinforcement detailing aid or prevent the achievement of this objective? In this thesis, a study is undertaken into the detailing aspects of reinforced concrete structures. This paper presents a critical review of recommendations regarding the detailing of corner joints subjected to opening moments as per Eurocode 2. The work includes the finite element analysis of four recommended detailing systems in the Eurocode namely, loop reinforcement, hairpin reinforcement with stirrups, hairpin reinforcement with stirrups and diagonal bars and loop reinforcement with diagonal bars. In addition, the effect of different sizes of chamfer at the reentrant corner and the effect of different percentage of tensile steel are studied. The finite element analysis consisted of simulating portal type opening corners made of normal strength concrete under monotonically increasing static loads. Some aspects of the structural behavior studied include the stress and strain distribution in the concrete, cracking moment, crack pattern and corner efficiency. From the study, it was concluded that all except the detailing with hairpin reinforcement with stirrups and diagonal bars, were unable to reach full capacity. In addition, it is suggested that the reinforcement ratio limit set in the Eurocode 2 be revised. This study is not enough to evaluate the detailing of corner joints subjected to opening moments. It is highly suggested that a laboratory investigation be conducted in order to accurately test the corner capacity as its accuracy betters software simulations. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/18368 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Reinforcement | en_US |
| dc.subject | Beam-Column Joints | en_US |
| dc.subject | Reinforcement Detailing | en_US |
| dc.subject | Corner Beam-Column | en_US |
| dc.title | Evaluation of Reinforcement Detailing in Corner Beam-Column Joints | en_US |
| dc.type | Thesis | en_US |