A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings

Amin Barari; Lars Bo Ibsen

doi:10.1007/978-3-319-95771-5_11

A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

3 Citationer (Scopus)

164 Downloads (Pure)

Abstract

In recent times, shallow foundations have become more diverse, and now include concrete or steel bucket foundations used as anchors for floating platforms or as foundation for offshore wind turbines. They are always subjected to significant cyclic lateral loads due to wind and wave action. A work-hardening plasticity model for the moment and horizontal force resultants associated with the displacements of the offshore suction caissons is herein developed.

In addition, in order to better understand the performance of offshore bucket foundations under cyclic lateral loads series of cyclic lateral load tests were carried out on small scale models in a special rig developed for the cyclic tests at Aalborg University. The influence of cyclic lateral loads on the bucket lateral secant stiffness is investigated and a function is utilized to investigate it due to permanent displacements. The bucket stiffness increased with number of cycles irrespective of the load characteristics which contradicts the traditional solutions to tackle this complex situation.

Originalsprog	Engelsk
Titel	New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures : Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China
Redaktører	Hadi Khabbaz, Heejung Youn, Mounir Bouassida
Forlag	Springer
Publikationsdato	2018
Sider	127-139
Artikelnummer	SUCI-D-17-00230
ISBN (Trykt)	978-3-319-95770-8
ISBN (Elektronisk)	978-3-319-95771-5
DOI	https://doi.org/10.1007/978-3-319-95771-5_11
Status	Udgivet - 2018
Begivenhed	The 5th GeoChina International Conference 2018: Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference - HangZhou, Kina Varighed: 23 jul. 2018 → 25 jul. 2018 Konferencens nummer: 5

Konference

Konference	The 5th GeoChina International Conference 2018
Nummer	5
Land/Område	Kina
By	HangZhou
Periode	23/07/2018 → 25/07/2018

Navn	Sustainable Civil Infrastructures
ISSN	2366-3405

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10.1007/978-3-319-95771-5_11

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Citationsformater

Barari, A., & Ibsen, L. B. (2018). A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings. I H. Khabbaz, H. Youn, & M. Bouassida (red.), New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures: Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China (s. 127-139). Artikel SUCI-D-17-00230 Springer. https://doi.org/10.1007/978-3-319-95771-5_11

Barari, Amin ; Ibsen, Lars Bo. / A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings. New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures: Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China. red. / Hadi Khabbaz ; Heejung Youn ; Mounir Bouassida. Springer, 2018. s. 127-139 (Sustainable Civil Infrastructures).

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title = "A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings",

abstract = "In recent times, shallow foundations have become more diverse, and now include concrete or steel bucket foundations used as anchors for floating platforms or as foundation for offshore wind turbines. They are always subjected to significant cyclic lateral loads due to wind and wave action. A work-hardening plasticity model for the moment and horizontal force resultants associated with the displacements of the offshore suction caissons is herein developed.In addition, in order to better understand the performance of offshore bucket foundations under cyclic lateral loads series of cyclic lateral load tests were carried out on small scale models in a special rig developed for the cyclic tests at Aalborg University. The influence of cyclic lateral loads on the bucket lateral secant stiffness is investigated and a function is utilized to investigate it due to permanent displacements. The bucket stiffness increased with number of cycles irrespective of the load characteristics which contradicts the traditional solutions to tackle this complex situation.",

author = "Amin Barari and Ibsen, {Lars Bo}",

year = "2018",

doi = "10.1007/978-3-319-95771-5_11",

language = "English",

isbn = "978-3-319-95770-8",

series = "Sustainable Civil Infrastructures",

publisher = "Springer",

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editor = "Hadi Khabbaz and Heejung Youn and Mounir Bouassida",

booktitle = "New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures",

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note = "The 5th GeoChina International Conference 2018 : Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference, GeoChina ; Conference date: 23-07-2018 Through 25-07-2018",

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Barari, A & Ibsen, LB 2018, A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings. i H Khabbaz, H Youn & M Bouassida (red), New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures: Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China., SUCI-D-17-00230, Springer, Sustainable Civil Infrastructures, s. 127-139, The 5th GeoChina International Conference 2018, HangZhou, Kina, 23/07/2018. https://doi.org/10.1007/978-3-319-95771-5_11

A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings. / Barari, Amin; Ibsen, Lars Bo.
New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures: Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China. red. / Hadi Khabbaz; Heejung Youn; Mounir Bouassida. Springer, 2018. s. 127-139 SUCI-D-17-00230 (Sustainable Civil Infrastructures).

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

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T1 - A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings

AU - Barari, Amin

AU - Ibsen, Lars Bo

N1 - Conference code: 5

PY - 2018

Y1 - 2018

N2 - In recent times, shallow foundations have become more diverse, and now include concrete or steel bucket foundations used as anchors for floating platforms or as foundation for offshore wind turbines. They are always subjected to significant cyclic lateral loads due to wind and wave action. A work-hardening plasticity model for the moment and horizontal force resultants associated with the displacements of the offshore suction caissons is herein developed.In addition, in order to better understand the performance of offshore bucket foundations under cyclic lateral loads series of cyclic lateral load tests were carried out on small scale models in a special rig developed for the cyclic tests at Aalborg University. The influence of cyclic lateral loads on the bucket lateral secant stiffness is investigated and a function is utilized to investigate it due to permanent displacements. The bucket stiffness increased with number of cycles irrespective of the load characteristics which contradicts the traditional solutions to tackle this complex situation.

AB - In recent times, shallow foundations have become more diverse, and now include concrete or steel bucket foundations used as anchors for floating platforms or as foundation for offshore wind turbines. They are always subjected to significant cyclic lateral loads due to wind and wave action. A work-hardening plasticity model for the moment and horizontal force resultants associated with the displacements of the offshore suction caissons is herein developed.In addition, in order to better understand the performance of offshore bucket foundations under cyclic lateral loads series of cyclic lateral load tests were carried out on small scale models in a special rig developed for the cyclic tests at Aalborg University. The influence of cyclic lateral loads on the bucket lateral secant stiffness is investigated and a function is utilized to investigate it due to permanent displacements. The bucket stiffness increased with number of cycles irrespective of the load characteristics which contradicts the traditional solutions to tackle this complex situation.

U2 - 10.1007/978-3-319-95771-5_11

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BT - New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures

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PB - Springer

T2 - The 5th GeoChina International Conference 2018

Y2 - 23 July 2018 through 25 July 2018

ER -

Barari A, Ibsen LB. A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings. I Khabbaz H, Youn H, Bouassida M, red., New Prospects in Geotechnical Engineering Aspects of Civil Infrastructures: Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China. Springer. 2018. s. 127-139. SUCI-D-17-00230. (Sustainable Civil Infrastructures). doi: 10.1007/978-3-319-95771-5_11

A Macro-Element Approach for Non-linear Response of Offshore Skirted Footings

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