Behaviour of model pile foundations under dynamic loads in saturated sand
| Autor: | Tatsunori Matsumoto, K. Esashi, Y. S. Unsever, Shun-Ichi Kobayashi |
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| Přispěvatelé: | Uludağ Üniversitesi/Mühendislik Fakültesi/İnşaat Mühendisliği Bölümü., Ünsever, Yeşim S., AAH-4344-2021 |
| Rok vydání: | 2016 |
| Předmět: |
Turkey
Ground motion 0211 other engineering and technologies 02 engineering and technology Ground contact Engineering Rafts Japan Soil liquefaction Sand Hydrogeology Tests Loading Geology Pile group Raft Structural engineering Geophysics Dynamic response Combination of static and dynamic loads Earthquake shaking table Pile Seismic design Shaking table test Dynamic loads Pile Group Piles PLAXIS Engineering geological Dynamic load testing Horizontal loading Knowledge based system Saturated sand Geotechnical engineering Dynamic load 021101 geological & geomatics engineering Civil and Structural Engineering 021110 strategic defence & security studies business.industry Settlement (structural) Piled raft Piled raft foundation Horizontal resistance Liquefaction Building and Construction Geotechnical Engineering and Engineering Geology Pile groups Pile foundations Geosciences multidisciplinary business Shaking table tests |
| Zdroj: | Bulletin of Earthquake Engineering. 15:1355-1373 |
| ISSN: | 1573-1456 1570-761X |
| DOI: | 10.1007/s10518-016-0029-y |
| Popis: | In Japan and Turkey, predominantly traditional design concept of pile group is still adopted even though most pile foundations are piled raft foundations in reality. This situation may be attributed to the still limited knowledge about behaviour of piled rafts subjected to the combination of static and dynamic loads. Hence, in this study, a series of shaking table tests on 3-pile piled raft and 3-pile pile group models were carried out in saturated sand at 1-g field under the combinations of static vertical and dynamic horizontal loading, where the input motion was sinusoidal wave having a frequency of 20 Hz and 1.50 and 6.00 m/s(2) amplitudes. The results showed that, raft-model ground contact in piled raft is very effective to reduce settlement compared to pile group even in liquefied soil. Moreover, even in piled raft, the horizontal resistance reduces if liquefaction of the ground surface occurs, due to the loss of the raft base resistance. |
| Databáze: | OpenAIRE |
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