Assessment of racking deformation of rectangular underground structures by centrifuge tests
| Autor: | M. Y. Özkan, Deniz Ulgen, Selman Sağlam |
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| Přispěvatelé: | MÜ, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Ülgen, Deniz |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Centrifuge
Flexibility (anatomy) business.industry Centrifuge Modelling Magnitude (mathematics) Structural engineering Deformation (meteorology) Geotechnical Engineering and Engineering Geology Racking Seismic analysis Dynamics Pipeline transport medicine.anatomical_structure Lateral earth pressure Buried Structures Earth and Planetary Sciences (miscellaneous) medicine Geotechnical engineering business Geology |
| Popis: | WOS: 000370248200005 Seismic safety of buried structures has become increasingly important over the past two decades, especially after the destructive earthquakes such as in Kobe, Japan (1995), Kocaeli, Turkey (1999) and Chi-Chi, Taiwan (1999). Some of the embedded structures including pipelines, subways and tunnels collapsed or suffered severe damage in those earthquakes due to inappropriate design. The main difficulty in seismic design is the incorporation of soil-structure interaction effect governed by the relative stiffness (flexibility ratio) between the soil and the embedded structure. This study aims to clarify the effect of flexibility ratio on the dynamic response of rectangular structures buried in dry sand. For that purpose, a series of dynamic centrifuge tests were conducted on two types of box-shaped models with different rigidities under various harmonic motions. The results reveal that the magnitude of dynamic lateral earth pressure and sidewall deformation is highly dependent on the flexibility ratio of the embedded structure. Based on the flexibility ratios, racking deformations observed in centrifuge tests and racking deformations estimated through analytical approaches were evaluated in a comparative manner. European UnionEuropean Union (EU) [227887] This research has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under the grant agreement no. 227887 (SERIES). The authors thank IFSTTAR centrifuge team for their valuable supports throughout the study. |
| Databáze: | OpenAIRE |
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