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| dc.contributor.author | WUDIE, MOLLA AZMERAW | |
| dc.date.accessioned | 2024-02-28T07:11:52Z | |
| dc.date.available | 2024-02-28T07:11:52Z | |
| dc.date.issued | 2023-10 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/15661 | |
| dc.description.abstract | Short corbels made of reinforced concrete are frequently employed in precast and other engineering constructions, including bridges. The advantages of using Basalt Fiber Reinforced Polymer (BFRP) bars and damage prevention mechanisms to strengthen reinforced concrete structures have not yet been completely explored. The structural behavior of reinforced concrete corbels reinforced with basalt fiber-reinforced polymer (BFRP) bars was therefore the subject of the current comparative investigation. This was accomplished using numerical analysis utilizing the finite element approach. In order to study 43 corbel models, including one that had not been strengthened, different BFRP bar numbers were used. The maximum load capacity, ductility, and damage were compared. In addition to these, BFRP bar-strengthened reinforced corbel load carrying capacities are investigated using the ABAQUS program. The impact of the number of BFRP bars, the compressive strength of the concrete, the shear span to effective depth ratio (a/d), and the contribution of secondary reinforcing bars are the main numerically analyzed parameters. Increasing the number of BFRP bars from 1 to 12, the load carrying capacity of the corbel decreases by 10.37%. Increasing the concrete compressive strength of the BFRP bar strengthened corbel from 25MPa to 30MPa and from 30MPa to 40MPa the maximum load carrying capacity of the corbel increases by 13.03% and 23.5% respectively. For a smaller a/d ratio the maximum load carrying of strengthened corbels is 54.48% higher than greater shear span to effective depth ratios. BFRP bar-strengthened corbels reinforced with crack control reinforcements show 23.92% load resistance than those unreinforced with crack control reinforcements. However, the absence of vertical secondary reinforcement has better load resistance than corbels with presence of secondary vertical reinforcement. Keywords: Corbels, FEM, basalt, fiber reinforced polymer bar, retrofitting | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | Civil and Water Resource Engineering | en_US |
| dc.title | NUMERICAL ANALYSIS OF CORBELS RETROFITTED WITH BASALT FIBER REINFORCED POLYMER (BFRP) BAR | en_US |
| dc.type | Thesis | en_US |
