Reinforced concrete by using the rectangular shape of voided beam
In conventional RC beam, the transition from compression to tension zone of the beam when load applied producing ineffective region at the middle area of the neutral axis. This is because, the area experiencing less compression and tension compare to the region above and below the neutral axis. T...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Teknologi MARA (UiTM), Malaysia
2020
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/5615/1/J10605_d1767e0a4fdb68541d47710f07287be1.pdf http://eprints.uthm.edu.my/5615/ |
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| Summary: | In conventional RC beam, the transition from compression to tension zone of
the beam when load applied producing ineffective region at the middle area of
the neutral axis. This is because, the area experiencing less compression and
tension compare to the region above and below the neutral axis. Thus, the
purpose of this research is to replace the use of concrete at the middle of the
neutral axis by incorporating 4 PVC pipes to reduce cost and the self-weight
of the structure. 4 pipes with a diameter of 20mm, 25mm and 50mm will be
combined together to form a continuous voided square beam of V40, V50 and
V100. The size of RC beam specimens is 1200mm x 160mm x 160mm, these
beams were test with 3-point load test to identify the flexural strength. From
the test, the ordinary beam recorded lowest maximum load, which is 15,35kN
and VRB 100mm is the strongest beam with the maximum load 33.75kN and
has the highest strength increment compared to another voided rectangular
beam. Besides that, VRB 100mm also can reduced until 42.69% self-weight of
RC beam and reduce until 37.5% of the concrete usage. From this study, it
shows that the Voided Square Beam can reduce the self-weight of beam and
reduce the concrete usage. Besides that, this idea also can implement to
produce the lightweight structure that meet the standard of Industrialized
Building System (IBS). |
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