Abstract
This paper presents an experimental investigation into the axial strain measurement method of fiber reinforced polymer (FRP)-confined normal- and high-strength concrete (NSC and HSC). A total of 15 FRP-confined concrete specimens with circular cross-sections were tested under monotonic axial compression. Axial strain recordings were compared on specimens instrumented with three different measurement methods: axial strain gauges and full- and midheight linear variable displacement transformers (LVDTs). The ultimate conditions are tabulated for each measurement method and key experimental outcomes discussed. The results indicate that axial strains of FRP-confined HSC are highly sensitive to the instrumentation arrangement and significant differences occur in the results obtained from different measurement methods.
| Original language | English |
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| Pages | 23-28 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 1 Jan 2014 |
| Event | 4th International Conference on Structures and Building Materials - Duration: 15 Mar 2014 → … |
Conference
| Conference | 4th International Conference on Structures and Building Materials |
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| Period | 15/03/14 → … |
Keywords
- Axial strain
- Concrete
- Concrete-filled FRP tubes
- Confinement
- Fiber reinforced polymer (FRP)
- High-strength concrete (HSC)
- Measurement method