Susilorini, Retno (2010) THE PERFORMANCE OF SLIM CONCRETE BEAM USING NYLON MESH CONFINEMENT. In: Enhancing Disaster Prevention and Mitigation. UII, Yogyakarta. ISBN 978-979-96122-9-8
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Abstract
Confinement has become significant way to improve ductility of concrete structure member which is very important in concrete earthquake resitant design. When a requirement of ductile-resistant concrete structure member is provided by beam concrete, then its performance should be supported by strength effort in reducing the hazard of earthquake, in example, by introducing the nylon mesh confinement. For slim beams, it is important to determine how the beam behave during the loading history. This research investigates the performance of slim beam using nylon mesh confinement. The research is conducted experimentally by some specimens of slim beams which are unconfined and confined by nylon mesh. All specimens have: f’ c design = 40 MPa, b = 10 cm, d = 20 cm, a = 100 cm, L = 300 cm, and slenderness ratio 5. The confinement made of nylon mesh with mesh spacing of 5 cm. Nylon mesh consists of nylon fibers with diameter of 1.1 mm which are assembled to be mesh. The specimens are tested by third point flexural beam test by compute- rized UTM and data logger of strain gauges.The research meets conclusions: (1) The confined slim beams perform higher maximum load with same displacement of 70 mm; (2) The confined slim beams perform ductile behaviour with strain-hardening character in ultimate stage while the unconfined beam does not; (3) The curvature of ductility ratio and curvature of slim beams of confined slim beams are about the same; (4) The unconfined slim beam shows less cracks compared to confined one while it achieves lower ultimate load and perform lower value of curvature of beam; (5) The confined slim beams perform higher ductility compared to unconfined beam; and (6) The nylon mesh significantly improve the ductility of slim beam and perform good performance of earthquake resistant concrete structure member.
| Item Type: | Book Section |
|---|---|
| Subjects: | 600 Technology (Applied sciences) > 620 Engineering > 624 Civil engineering > Civil Engineering > Concrete |
| Divisions: | Faculty of Engineering > Department of Civil Engineering |
| Depositing User: | Mrs Rikarda Ratih |
| Date Deposited: | 30 Aug 2018 04:02 |
| Last Modified: | 30 Aug 2018 04:02 |
| URI: | http://repository.unika.ac.id/id/eprint/16889 |
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