Jahankhah, Ali Asghar (2024) Investigating behavior glulam beams made of palm wood reinforced using anchored rebar. Masters thesis, university of zabol.
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Abstract
Throughout history, mankind has used wooden materials as structural members due to their abundance, lightness and simplicity, and today, in order to increase their resistance and use them more usefully, they are cut into suitable pieces during a process. And after dehumidification, it is connected with special glues for wood and putting it under pressure, which forms a multi-layered glulam beam. The aim of this research was to investigate the behavior of glulam beams made with palm pieces based on four-point bending test in four groups without reinforcement, reinforce-ment with simple rebar, reinforcement with retracted rebar and reinforcement with one-way glass fabric. From each group, three samples of glulam beams were pro-duced and three additional samples were produced in order to ensure better test re-sults, a total of 15 glulam beams were produced. In order to strengthen with steel, a rebar was used in the tensile area of the glulam beam, which was restrained at both ends by bolts and nuts and metal washers, and also to restrain the shear force in the two cut areas of the maximum end of the beam, from the metal box with an angle. It was used together with bolts and nuts, and in the group reinforced with glass cloth, one-way glass cloth was used, along with epoxy paste gel with hardener at a ratio of two to one. Finally, according to the results of each group, it was observed that the resistance characteristics of the beams have improved significantly according to the type of their reinforcement. The breakage coefficient increased by 64.63% in the beam reinforced with simple rebar to 123.3% in the beam reinforced with glass fab-ric, compared to the control sample, and in the group reinforced with rebar, com-pared to the group with simple rebar had a 10.32% increase in the breakage coeffi-cient. For new research, it is suggested that composite rebars should be replaced by steel rebars and other types of wood should be investigated to produce this type of beam.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | bending behavior, wooden beams, reinforced glulam, palm wood, innovation. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 18 May 2025 06:41 |
| Last Modified: | 18 May 2025 06:41 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/3820 |
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