Assessing the Impact of Improper Placement on Reinforced Concrete Beam Behaviour
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Bibliographic Details
| Author(s): |
Jiachen Zhang
(Department of Civil Engineering, Queen’s University, Kingston, ON, Canada)
Andre Brault (Department of Civil Engineering, Queen’s University, Kingston, ON, Canada) Neil A. Hoult (Department of Civil Engineering, Queen’s University, Kingston, ON, Canada) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 896-903 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.0896 | ||||
| Abstract: |
The recent construction booms in Dubai and China have often required the use of unskilled labour, which can lead to defects in the structure such as voids in reinforced concrete members. The goal of this research was to use sensors to explore the impact of poor concrete placement on reinforced concrete behaviour. Two beam specimens were constructed: a control, which was well vibrated, and a defective beam, which was not well vibrated resulting in extensive voids. Distributed fibre optic strain sensors were installed on both the longitudinal and transverse reinforcement bars. Digital image correlation was used to track crack development. It was found that the poor concrete placement had no impact on stiffness, capacity or failure mode. The distributed strain and digital image correlation data highlighted subtle differences in strain and cracking behaviour between the two specimens. |
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| Keywords: |
reinforced concrete beams digital image correlation fibre optic sensors honeycombing construction defects
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