Modelling horizontally loaded reinforced-concrete piles in a geotechnical centrifuge
| Autor: | Hendrik Louw, Schalk Willem Jacobsz, Elsabe P. Kearsley |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
021110 strategic
defence & security studies Centrifuge 0211 other engineering and technologies 02 engineering and technology Geotechnical Engineering and Engineering Geology Reinforced concrete Laboratory testing Current (stream) Soil structure interaction Geotechnical engineering Interaction problem Pile Geology 021101 geological & geomatics engineering |
| Zdroj: | International Journal of Physical Modelling in Geotechnics. 22:14-25 |
| ISSN: | 2042-6550 1346-213X |
| DOI: | 10.1680/jphmg.20.00016 |
| Popis: | The design of pile foundations to accommodate horizontal loads is a complex soil−structure interaction problem. Current small-scale laboratory testing of pile foundations is mostly focused on metal piles, which raises the question of the validity of results from these tests, and the principles derived, for the use of analysing and designing reinforced-concrete piles, where not only the soil, but also the piles exhibit highly non-linear material behaviour. This paper describes centrifuge tests that were conducted on scaled aluminium and reinforced-concrete single piles, subjected to lateral loading, with the aim of establishing the suitability of using aluminium alloys for modelling scaled reinforced-concrete piles. With responses similar to literature, both pile types proved to model the behaviour of laterally loaded piles well as far as bending and deflection at low loads are concerned. At larger loads, the reinforced-concrete pile cracked, resulting in non-linear material response, which contributed significantly to the difference in the behaviour between the piles studied. It was observed that the behaviour of reinforced-concrete piles under serviceability loads would not be captured using materials that cannot replicate the reduction in stiffness resulting from crack formation in concrete. |
| Databáze: | OpenAIRE |
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