All Outputs (26)

A data-driven approach for scour detection around monopile-supported offshore wind turbines using Naive Bayes classification (2024)
Journal Article
Jawalageri, S., Ghiasi, R., Jalilvand, S., Prendergast, L. J., & Malekjafarian, A. (2024). A data-driven approach for scour detection around monopile-supported offshore wind turbines using Naive Bayes classification. Marine Structures, 95, Article 103565. https://doi.org/10.1016/j.marstruc.2023.103565

This paper proposes a novel data-driven framework for scour detection around offshore wind turbines (OWTs), where damage features are derived from wind and wave-induced acceleration signals collected along the tower. A numerical mod... Read More about A data-driven approach for scour detection around monopile-supported offshore wind turbines using Naive Bayes classification.

A CPT-based multi-spring model for lateral monopile analysis under SLS conditions in sand (2024)
Journal Article
Tott-Buswell, J., Prendergast, L. J., & Gavin, K. (2024). A CPT-based multi-spring model for lateral monopile analysis under SLS conditions in sand. Ocean Engineering, 293, Article 116642. https://doi.org/10.1016/j.oceaneng.2023.116642

Monopiles are the most common Offshore Wind Turbine (OWT) foundations due to their simplicity in design, fabrication, and installation. However, large new-generation turbines have led to significant changes in monopile dimensions, n... Read More about A CPT-based multi-spring model for lateral monopile analysis under SLS conditions in sand.

Conceptualising engineering student perceptions of synchronous and asynchronous online learning (2023)
Journal Article
Mohammad Zadeh, M., Prendergast, L. J., Tew, J. D., & Beneroso Vallejo, D. (2024). Conceptualising engineering student perceptions of synchronous and asynchronous online learning. European Journal of Engineering Education, 49(1), 94-112. https://doi.org/10.1080/03043797.2023.2201178

Students’ perceptions towards synchronous and asynchronous online delivery modes of three engineering courses, in a large UK university is conceptualised, inspired by the Community of Inquiry theoretical framework. Using a qualitative methodology, 76... Read More about Conceptualising engineering student perceptions of synchronous and asynchronous online learning.

Analytical approach for seismic analysis of onshore wind turbines considering soil-structure interaction (2023)
Journal Article
Bozyigit, B., Bozyigit, I., & Prendergast, L. (2023). Analytical approach for seismic analysis of onshore wind turbines considering soil-structure interaction. Structures, 51, 226-241. https://doi.org/10.1016/j.istruc.2023.03.048

The aim of this study is to present an efficient analytical approach, based on a combination of transfer matrix formulations and modal superposition, to perform seismic response analysis of onshore wind turbines (WT) incorporating the effects of soil... Read More about Analytical approach for seismic analysis of onshore wind turbines considering soil-structure interaction.

Comparison of risk-based methods for bridge scour management (2023)
Journal Article
Pregnolato, M., Giordano, P. F., Prendergast, L. J., Vardanega, P. J., & Limongelli, M. P. (2023). Comparison of risk-based methods for bridge scour management. Sustainable and Resilient Infrastructure, 8(5), 514-531. https://doi.org/10.1080/23789689.2023.2175141

Scour is a significant cause of bridge failure, and resulting bridge closures are likely to generate significant disruption to infrastructure networks. The management of scour-susceptible bridges is a significant challenge for improving transport res... Read More about Comparison of risk-based methods for bridge scour management.

Analysis of the response of a roadway bridge under extreme flooding-related events: Scour and debris-loading (2023)
Journal Article
Kosič, M., Prendergast, L., & Anžlin, A. (2023). Analysis of the response of a roadway bridge under extreme flooding-related events: Scour and debris-loading. Engineering Structures, 279, Article 115607. https://doi.org/10.1016/j.engstruct.2023.115607

Hydraulic actions on bridges are a leading cause of failure, especially due to the occurrence of scour erosion. Due to climate change, flooding and scour risks are exacerbating for bridges worldwide, leading to a significant stress burden on asset ma... Read More about Analysis of the response of a roadway bridge under extreme flooding-related events: Scour and debris-loading.

Effect of scour erosion on mode shapes of a 5 MW monopile-supported offshore wind turbine (2022)
Journal Article
Jawalageri, S., Prendergast, L. J., Jalilvand, S., & Malekjafarian, A. (2022). Effect of scour erosion on mode shapes of a 5 MW monopile-supported offshore wind turbine. Ocean Engineering, 266(Part 5), Article 113131. https://doi.org/10.1016/j.oceaneng.2022.113131

This paper investigates the influence of scour erosion on the mode shapes of the National Renewable Energy Laboratory (NREL) 5 MW offshore wind turbine (OWT) in varying soil conditions, where modes are derived from wind and wave-induced accelerations... Read More about Effect of scour erosion on mode shapes of a 5 MW monopile-supported offshore wind turbine.

Examination of the reduction in natural frequency of laterally loaded piles due to strain-dependence of soil shear modulus (2022)
Journal Article
Prendergast, L., & Igoe, D. (2022). Examination of the reduction in natural frequency of laterally loaded piles due to strain-dependence of soil shear modulus. Ocean Engineering, 258, Article 111614. https://doi.org/10.1016/j.oceaneng.2022.111614

Society’s transition to low-carbon energy sources has resulted in significant expansion in offshore wind technology. Most offshore wind turbines (OWTs) are founded on large-diameter steel tubular piles driven into the seabed, termed monopiles. OWTs a... Read More about Examination of the reduction in natural frequency of laterally loaded piles due to strain-dependence of soil shear modulus.

A comparison of the UK and Italian national risk-based guidelines for assessing hydraulic actions on bridges (2022)
Journal Article
Pregnolato, M., Giordano, P. F., Panici, D., Prendergast, L. J., & Pina Limongelli, M. (2024). A comparison of the UK and Italian national risk-based guidelines for assessing hydraulic actions on bridges. Structure and Infrastructure Engineering, 20(1), 117-130 . https://doi.org/10.1080/15732479.2022.2081709

This paper compares the application of two recently published guidance documents for risk-based assessment of hydraulic actions on bridges, namely the UK Design Manual for Roads and Bridges and the Italian Ministry of Infrastructure and Transport’s G... Read More about A comparison of the UK and Italian national risk-based guidelines for assessing hydraulic actions on bridges.

A Review of Numerical Models for Slab-Asphalt Track Railways (2022)
Journal Article
Atalan, M., Prendergast, L. J., Grizi, A., & Thom, N. (2022). A Review of Numerical Models for Slab-Asphalt Track Railways. Infrastructures, 7(4), Article 59. https://doi.org/10.3390/infrastructures7040059

Higher train speeds and heavier axle loads trigger elevated stresses and vibrations in the track, potentially increasing track deterioration rates and maintenance costs. Alternative track forms made of combinations of reinforced concrete and asphalt... Read More about A Review of Numerical Models for Slab-Asphalt Track Railways.

Quantifying the value of SHM information for bridges under flood-induced scour (2022)
Journal Article
Giordano, P. F., Prendergast, L. J., & Limongelli, M. P. (2023). Quantifying the value of SHM information for bridges under flood-induced scour. Structure and Infrastructure Engineering, 19(11), 1616-1632. https://doi.org/10.1080/15732479.2022.2048030

Bridge scour is a leading cause of failure for bridges over waterways and is notoriously difficult to detect with accuracy. Dynamic Structural Health Monitoring (SHM) of bridges for scour has gained traction in recent years as monitoring systems have... Read More about Quantifying the value of SHM information for bridges under flood-induced scour.

Seismic response of piles in layered soils: Performance of pseudostatic Winkler models against centrifuge data (2021)
Journal Article
Tott-Buswell, J., Garala, T., Prendergast, L., Madabhushi, S., & Rovithis, E. (2022). Seismic response of piles in layered soils: Performance of pseudostatic Winkler models against centrifuge data. Soil Dynamics and Earthquake Engineering, 153, Article 107110. https://doi.org/10.1016/j.soildyn.2021.107110

In this study, the suitability of the pseudostatic approach for the seismic analysis of pile foundations in layered soils is explored by means of experimental data from centrifuge tests performed at 60g. A free-head single pile and a capped (1 × 3) p... Read More about Seismic response of piles in layered soils: Performance of pseudostatic Winkler models against centrifuge data.

Experimental and numerical investigation of the effect of vertical loading on the lateral behaviour of monopiles in sand (2021)
Journal Article
Li, Q., Gavin, K., Askarinejad, A., & Prendergast, L. (2022). Experimental and numerical investigation of the effect of vertical loading on the lateral behaviour of monopiles in sand. Canadian Geotechnical Journal, 59(5), 652-666. https://doi.org/10.1139/cgj-2020-0769

The influence of combined loading on the response of monopiles used to support offshore wind turbines (OWTs) is investigated in this paper. In current practice, resistance of monopiles to vertical and lateral loading is considered separately. As OWT... Read More about Experimental and numerical investigation of the effect of vertical loading on the lateral behaviour of monopiles in sand.

Impact of Geotechnical Uncertainty on the Preliminary Design of Monopiles Supporting Offshore Wind Turbines (2021)
Journal Article
Reale, C., Tott-Buswell, J., & Prendergast, L. J. (2021). Impact of Geotechnical Uncertainty on the Preliminary Design of Monopiles Supporting Offshore Wind Turbines. ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering, 7(4), Article 040903. https://doi.org/10.1115/1.4051418

The growing demand for clean renewable energy sources and the lack of suitable nearshore sites are moving the offshore wind industry toward developing larger wind turbines in deeper water locations further offshore. This is adding significant uncerta... Read More about Impact of Geotechnical Uncertainty on the Preliminary Design of Monopiles Supporting Offshore Wind Turbines.

Wavelet-based operating deflection shapes for locating scour-related stiffness losses in multi-span bridges (2021)
Journal Article
OBrien, E. J., McCrum, D. P., Khan, M. A., & Prendergast, L. J. (2023). Wavelet-based operating deflection shapes for locating scour-related stiffness losses in multi-span bridges. Structure and Infrastructure Engineering, 19(2), 238-253. https://doi.org/10.1080/15732479.2021.1937235

Scour erosion poses a significant risk to bridge safety worldwide and affects the stiffness of the soil-foundation system, resulting in global changes in the dynamic behavior of the bridges. In this paper, a new approach to detect scour at multiple l... Read More about Wavelet-based operating deflection shapes for locating scour-related stiffness losses in multi-span bridges.

Laboratory investigation of a bridge scour monitoring method using decentralized modal analysis (2021)
Journal Article
Khan, M. A., McCrum, D. P., Prendergast, L. J., OBrien, E. J., Fitzgerald, P. C., & Kim, C. (2021). Laboratory investigation of a bridge scour monitoring method using decentralized modal analysis. Structural Health Monitoring, 20(6), 3327-3341. https://doi.org/10.1177/1475921720985122

Scour is a significant issue for bridges worldwide that influences the global stiffness of bridge structures and hence alters the dynamic behaviour of these systems. For the first time, this article presents a new approach to detect bridge scour at s... Read More about Laboratory investigation of a bridge scour monitoring method using decentralized modal analysis.

Influence of vertical loading on behavior of laterally loaded foundation piles: A review (2020)
Journal Article
Li, Q., Prendergast, L., Askarinejad, A., & Gavin, K. (2020). Influence of vertical loading on behavior of laterally loaded foundation piles: A review. Journal of Marine Science and Engineering, 8(12), 1-18. https://doi.org/10.3390/jmse8121029

The majority of installed offshore wind turbines are supported on large-diameter, open-ended steel pile foundations, known as monopiles. These piles are subjected to vertical and lateral loads while in service. In current design practice, interaction... Read More about Influence of vertical loading on behavior of laterally loaded foundation piles: A review.

Empirical Shaft Resistance of Driven Piles Penetrating Weak Rock (2020)
Journal Article
Barrett, J. W., & Prendergast, L. J. (2020). Empirical Shaft Resistance of Driven Piles Penetrating Weak Rock. Rock Mechanics and Rock Engineering, 53(12), 5531-5543. https://doi.org/10.1007/s00603-020-02228-7

In this paper, an empirical relationship between the Unconfined Compressive Strength (UCS) of intact rock and the unit shaft resistance of piles penetrating rock is investigated. A growing number of civil engineering projects are utilizing steel pile... Read More about Empirical Shaft Resistance of Driven Piles Penetrating Weak Rock.

Factors Influencing the Prediction of Pile Driveability Using CPT-Based Approaches (2020)
Journal Article
Prendergast, L. J., Gandina, P., & Gavin, K. (2020). Factors Influencing the Prediction of Pile Driveability Using CPT-Based Approaches. Energies, 13(12), https://doi.org/10.3390/en13123128

This paper investigates the applicability of Cone Penetration Test (CPT)-based axial capacity approaches, used for estimating pile static capacity, to the prediction of pile driveability. An investigation of the influence of various operational param... Read More about Factors Influencing the Prediction of Pile Driveability Using CPT-Based Approaches.

Experimental Demonstration of a Mode Shape-Based Scour-Monitoring Method for Multispan Bridges with Shallow Foundations (2020)
Journal Article
Malekjafarian, A., Kim, C., O'Brien, E., Prendergast, L. J., Fitzgerald, P., & Nakajima, S. (2020). Experimental Demonstration of a Mode Shape-Based Scour-Monitoring Method for Multispan Bridges with Shallow Foundations. Journal of Bridge Engineering, 25(8), Article 04020050. https://doi.org/10.1061/%28asce%29be.1943-5592.0001586

A vibration-based scour monitoring approach applicable to bridges with multiple simply supported spans on shallow foundations is experimentally investigated in this paper. A monitoring strategy based on the relative changes in pier mode shape amplitu... Read More about Experimental Demonstration of a Mode Shape-Based Scour-Monitoring Method for Multispan Bridges with Shallow Foundations.