Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading
Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading....
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Malakshah, Roozbeh Rezanejad [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© Iran University of Science and Technology 2021 |
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| Übergeordnetes Werk: |
Enthalten in: International journal of civil engineering - [Cham] : Springer International Publishing, 2003, 20(2021), 2 vom: 22. Okt., Seite 195-206 |
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| Übergeordnetes Werk: |
volume:20 ; year:2021 ; number:2 ; day:22 ; month:10 ; pages:195-206 |
| Links: |
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| DOI / URN: |
10.1007/s40999-021-00679-9 |
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| Katalog-ID: |
SPR046032606 |
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| 100 | 1 | |a Malakshah, Roozbeh Rezanejad |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading |
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| 520 | |a Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. | ||
| 650 | 4 | |a Monopiles |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Offshore wind turbines |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Calcareous sands |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Centrifuge modelling |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Moradi, Majid |4 aut | |
| 700 | 1 | |a Ghalandarzadeh, Abbas |4 aut | |
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10.1007/s40999-021-00679-9 doi (DE-627)SPR046032606 (SPR)s40999-021-00679-9-e DE-627 ger DE-627 rakwb eng Malakshah, Roozbeh Rezanejad verfasserin aut Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Iran University of Science and Technology 2021 Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. Monopiles (dpeaa)DE-He213 Offshore wind turbines (dpeaa)DE-He213 Calcareous sands (dpeaa)DE-He213 Centrifuge modelling (dpeaa)DE-He213 Moradi, Majid aut Ghalandarzadeh, Abbas aut Enthalten in International journal of civil engineering [Cham] : Springer International Publishing, 2003 20(2021), 2 vom: 22. Okt., Seite 195-206 (DE-627)857242466 (DE-600)2853422-0 2383-3874 nnns volume:20 year:2021 number:2 day:22 month:10 pages:195-206 https://dx.doi.org/10.1007/s40999-021-00679-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 20 2021 2 22 10 195-206 |
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10.1007/s40999-021-00679-9 doi (DE-627)SPR046032606 (SPR)s40999-021-00679-9-e DE-627 ger DE-627 rakwb eng Malakshah, Roozbeh Rezanejad verfasserin aut Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Iran University of Science and Technology 2021 Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. Monopiles (dpeaa)DE-He213 Offshore wind turbines (dpeaa)DE-He213 Calcareous sands (dpeaa)DE-He213 Centrifuge modelling (dpeaa)DE-He213 Moradi, Majid aut Ghalandarzadeh, Abbas aut Enthalten in International journal of civil engineering [Cham] : Springer International Publishing, 2003 20(2021), 2 vom: 22. Okt., Seite 195-206 (DE-627)857242466 (DE-600)2853422-0 2383-3874 nnns volume:20 year:2021 number:2 day:22 month:10 pages:195-206 https://dx.doi.org/10.1007/s40999-021-00679-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 20 2021 2 22 10 195-206 |
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10.1007/s40999-021-00679-9 doi (DE-627)SPR046032606 (SPR)s40999-021-00679-9-e DE-627 ger DE-627 rakwb eng Malakshah, Roozbeh Rezanejad verfasserin aut Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Iran University of Science and Technology 2021 Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. Monopiles (dpeaa)DE-He213 Offshore wind turbines (dpeaa)DE-He213 Calcareous sands (dpeaa)DE-He213 Centrifuge modelling (dpeaa)DE-He213 Moradi, Majid aut Ghalandarzadeh, Abbas aut Enthalten in International journal of civil engineering [Cham] : Springer International Publishing, 2003 20(2021), 2 vom: 22. Okt., Seite 195-206 (DE-627)857242466 (DE-600)2853422-0 2383-3874 nnns volume:20 year:2021 number:2 day:22 month:10 pages:195-206 https://dx.doi.org/10.1007/s40999-021-00679-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 20 2021 2 22 10 195-206 |
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10.1007/s40999-021-00679-9 doi (DE-627)SPR046032606 (SPR)s40999-021-00679-9-e DE-627 ger DE-627 rakwb eng Malakshah, Roozbeh Rezanejad verfasserin aut Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Iran University of Science and Technology 2021 Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. Monopiles (dpeaa)DE-He213 Offshore wind turbines (dpeaa)DE-He213 Calcareous sands (dpeaa)DE-He213 Centrifuge modelling (dpeaa)DE-He213 Moradi, Majid aut Ghalandarzadeh, Abbas aut Enthalten in International journal of civil engineering [Cham] : Springer International Publishing, 2003 20(2021), 2 vom: 22. Okt., Seite 195-206 (DE-627)857242466 (DE-600)2853422-0 2383-3874 nnns volume:20 year:2021 number:2 day:22 month:10 pages:195-206 https://dx.doi.org/10.1007/s40999-021-00679-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 20 2021 2 22 10 195-206 |
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10.1007/s40999-021-00679-9 doi (DE-627)SPR046032606 (SPR)s40999-021-00679-9-e DE-627 ger DE-627 rakwb eng Malakshah, Roozbeh Rezanejad verfasserin aut Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Iran University of Science and Technology 2021 Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. Monopiles (dpeaa)DE-He213 Offshore wind turbines (dpeaa)DE-He213 Calcareous sands (dpeaa)DE-He213 Centrifuge modelling (dpeaa)DE-He213 Moradi, Majid aut Ghalandarzadeh, Abbas aut Enthalten in International journal of civil engineering [Cham] : Springer International Publishing, 2003 20(2021), 2 vom: 22. Okt., Seite 195-206 (DE-627)857242466 (DE-600)2853422-0 2383-3874 nnns volume:20 year:2021 number:2 day:22 month:10 pages:195-206 https://dx.doi.org/10.1007/s40999-021-00679-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 20 2021 2 22 10 195-206 |
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Malakshah, Roozbeh Rezanejad @@aut@@ Moradi, Majid @@aut@@ Ghalandarzadeh, Abbas @@aut@@ |
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These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. 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Malakshah, Roozbeh Rezanejad |
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Malakshah, Roozbeh Rezanejad misc Monopiles misc Offshore wind turbines misc Calcareous sands misc Centrifuge modelling Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading |
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Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading Monopiles (dpeaa)DE-He213 Offshore wind turbines (dpeaa)DE-He213 Calcareous sands (dpeaa)DE-He213 Centrifuge modelling (dpeaa)DE-He213 |
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Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading |
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Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading |
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Malakshah, Roozbeh Rezanejad |
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Malakshah, Roozbeh Rezanejad |
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10.1007/s40999-021-00679-9 |
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centrifuge modelling of monopiles in calcareous sand subjected to cyclic lateral loading |
| title_auth |
Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading |
| abstract |
Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. © Iran University of Science and Technology 2021 |
| abstractGer |
Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. © Iran University of Science and Technology 2021 |
| abstract_unstemmed |
Abstract Monopiles are the most common foundation type for offshore wind turbines. These structures are subjected to millions of cyclic horizontal loads during their lifespans, mainly from waves and wind; however, there are gaps in conventional design methods for different aspects of cyclic loading. The present study examined the cyclic behaviour of monopiles in dry calcareous sand. Centrifuge tests were carried out to investigate the effect of cyclic loading on the accumulated displacement and soil-pile stiffness. The results showed that asymmetric two-way loading is the most damaging load type, although its difference from one-way loading is less than what has been reported previously. Asymmetric two-way loading was found to cause up to 20% more displacement than one-way loading. Furthermore, the secant stiffness of the soil-pile system increased about 15% after 600 cycles, and a logarithmic function has been provided to describe this trend. The slope of this function increased with the maximum cyclic load magnitude; however, an increase in the cyclic load magnitude decreased the soil-pile stiffness. Moreover, the soil-pile stiffness was considerably lower in symmetric two-way loading compared to other load reversal conditions. After each cyclic test, monotonic loading was applied. In most cases, the post-cyclic lateral capacity was nearly equal to the static capacity. A model is proposed to predict the accumulated displacement under cyclic loading. © Iran University of Science and Technology 2021 |
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Centrifuge Modelling of Monopiles in Calcareous Sand Subjected to Cyclic Lateral Loading |
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https://dx.doi.org/10.1007/s40999-021-00679-9 |
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Moradi, Majid Ghalandarzadeh, Abbas |
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10.1007/s40999-021-00679-9 |
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2024-07-03T19:53:32.426Z |
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