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All Outputs (36)

Micromechanical modeling of tension stiffening in FRP-strengthened concrete elements (2018)
Journal Article
Ghiassi, B., Soltani, M., & Rahnamaye Sepehr, S. (2018). Micromechanical modeling of tension stiffening in FRP-strengthened concrete elements. Journal of Composite Materials, 52(19), 2577-2596. https://doi.org/10.1177/0021998317751248

This article presents a micromodeling computational framework for simulating the tensile response and tension-stiffening behavior of fiber reinforced polymer–strengthened reinforced concrete elements. The total response of strengthened elements is co... Read More about Micromechanical modeling of tension stiffening in FRP-strengthened concrete elements.

Probabilistic examination of the change in eigenfrequencies of an offshore wind turbine under progressive scour incorporating soil spatial variability (2017)
Journal Article
Prendergast, L., Reale, C., & Gavin, K. (2018). Probabilistic examination of the change in eigenfrequencies of an offshore wind turbine under progressive scour incorporating soil spatial variability. Marine Structures, 57, (87-104). doi:10.1016/j.marstruc.2017.09.009. ISSN 0951-8339

The trend for development in the offshore wind sector is towards larger turbines in deeper water. This results in higher wind and wave loads on these dynamically sensitive structures. Monopiles are the preferred foundation solution for offshore wind... Read More about Probabilistic examination of the change in eigenfrequencies of an offshore wind turbine under progressive scour incorporating soil spatial variability.

Isolating the location of scour-induced stiffness loss in bridges using local modal behaviour (2017)
Journal Article
Prendergast, L. J., Gavin, K., & Hester, D. (2017). Isolating the location of scour-induced stiffness loss in bridges using local modal behaviour. Journal of Civil Structural Health Monitoring, 7(4), 483-503. https://doi.org/10.1007/s13349-017-0238-3

Detecting scour by analysing bridge vibrations is receiving an increasing amount of attention in the literature. Others have considered changes in natural frequency to indicate the presence of scour damage; however, little work has been reported on i... Read More about Isolating the location of scour-induced stiffness loss in bridges using local modal behaviour.

Retrofit Design Methodology for Substandard R.C. Buildings with Torsional Sensitivity (2017)
Journal Article
Thermou, G. E., & Psaltakis, M. (2018). Retrofit Design Methodology for Substandard R.C. Buildings with Torsional Sensitivity. Journal of Earthquake Engineering, 22(7), 1233-1258. doi:10.1080/13632469.2016.1277569

Recent earthquakes have revealed the susceptibility of non-ductile reinforced concrete (R.C.) buildings with deficiencies related to stiffness and/or mass irregularities in plan and elevation. This paper proposes a design methodology for the seismic... Read More about Retrofit Design Methodology for Substandard R.C. Buildings with Torsional Sensitivity.

Development of a vehicle-bridge-soil dynamic interaction model for scour damage modelling (2016)
Journal Article
Prendergast, L. J., Hester, D., & Gavin, K. (2016). Development of a vehicle-bridge-soil dynamic interaction model for scour damage modelling. Shock and Vibration, 2016, 1-15. https://doi.org/10.1155/2016/7871089

Damage detection in bridges using vibration-based methods is an area of growing research interest. Improved assessment methodologies combined with state-of-the-art sensor technology are rapidly making these approaches applicable for real-world stru... Read More about Development of a vehicle-bridge-soil dynamic interaction model for scour damage modelling.

A comparative study on deflection-hardening behavior of ductile alkali-activated composite (2016)
Conference Proceeding
Zhang, S., Nedeljković, M., Ghiassi, B., & Ye, G. (2016). A comparative study on deflection-hardening behavior of ductile alkali-activated composite. In V. Mechtcherine, V. Slowik, & P. Kabele (Eds.), Strain-hardening cement-based composites (123-130). https://doi.org/10.1007/978-94-024-1194-2_14

Alkali-activation technology as an environmental friendly approach to produce construction materials can lead to a great CO2 emission reduction and provide high potential for waste reutilization. Alkali activated materials (AAMs) generally exhibit be... Read More about A comparative study on deflection-hardening behavior of ductile alkali-activated composite.

Determining the presence of scour around bridge foundations using vehicle-induced vibrations (2016)
Journal Article
Prendergast, L. J., Hester, D., & Gavin, K. (2016). Determining the presence of scour around bridge foundations using vehicle-induced vibrations. Journal of Bridge Engineering, 21(10), Article 04016065. https://doi.org/10.1061/%28asce%29be.1943-5592.0000931

Bridge scour is the number one cause of failure in bridges located over waterways. Scour leads to rapid losses in foundation stiffness and can cause sudden collapse. Previous research on bridge health monitoring has used changes in natural frequency... Read More about Determining the presence of scour around bridge foundations using vehicle-induced vibrations.

A Century of Sea Level Measurements at Newlyn, Southwest England (2015)
Journal Article
Bradshaw, E., Woodworth, P., Hibbert, A., Bradley, L., Pugh, D., Fane, C., & Bingley, R. (2016). A Century of Sea Level Measurements at Newlyn, Southwest England. Marine Geodesy, 39(2), 115-140. https://doi.org/10.1080/01490419.2015.1121175

The Newlyn Tidal Observatory is the most important sea level station in the UK. It commenced operations in 1915 as part of the Second Geodetic Levelling of England and Wales, and the mean sea level determined from the tide gauge during the first six... Read More about A Century of Sea Level Measurements at Newlyn, Southwest England.

A comparison of initial stiffness formulations for small-strain soil–pile dynamic Winkler modelling (2015)
Journal Article
Prendergast, L., & Gavin, K. (2016). A comparison of initial stiffness formulations for small-strain soil–pile dynamic Winkler modelling. Soil Dynamics and Earthquake Engineering, 81, 27-41. https://doi.org/10.1016/j.soildyn.2015.11.006

Dynamic Soil-Structure Interaction (DSSI) is an area of much ongoing research and has wide and varied applications from seismic response analysis to offshore wind foundation response. DSSI covers a wide range of load regimes from small-strain vibrati... Read More about A comparison of initial stiffness formulations for small-strain soil–pile dynamic Winkler modelling.

Design oriented linear-equivalent approach for evaluating the effect of tunneling on pipelines (2015)
Journal Article
Klar, A., Elkayam, I., & Marshall, A. (2016). Design oriented linear-equivalent approach for evaluating the effect of tunneling on pipelines. Journal of Geotechnical and Geoenvironmental Engineering, 142(1), Article 04015062. https://doi.org/10.1061/%28ASCE%29GT.1943-5606.0001376

The process of tunneling is associated with ground movements which may lead to stressing of nearby existing buried infrastructure, and potentially poses a risk of damage. The need for an effective evaluation method of the potential risk increases wit... Read More about Design oriented linear-equivalent approach for evaluating the effect of tunneling on pipelines.

An investigation into the effect of scour on the natural frequency of an offshore wind turbine (2015)
Journal Article
Prendergast, L., Gavin, K., & Doherty, P. (2015). An investigation into the effect of scour on the natural frequency of an offshore wind turbine. Ocean Engineering, 101, (1-11). doi:10.1016/j.oceaneng.2015.04.017. ISSN 0029-8018

Rapid expansion of the offshore wind industry has stimulated a renewed interest in the behaviour of offshore piles. There is widespread acceptance in practice that pile design methods developed for the offshore oil and gas industry may not be appropr... Read More about An investigation into the effect of scour on the natural frequency of an offshore wind turbine.

An analytical study of tunnel-pile interaction (2014)
Journal Article
Marshall, A., & Haji, T. (2015). An analytical study of tunnel-pile interaction. Tunnelling and Underground Space Technology, 45, (43-51). doi:10.1016/j.tust.2014.09.001. ISSN 0886-7798

Tunnelling under the foundations of structures is becoming more common because of the lack of available space for infrastructure, both above and below ground. The interaction between newly constructed tunnels and existing piled foundations is an impo... Read More about An analytical study of tunnel-pile interaction.

A review of bridge scour monitoring techniques (2014)
Journal Article
Prendergast, L., & Gavin, K. (2014). A review of bridge scour monitoring techniques. Journal of Rock Mechanics and Geotechnical Engineering, 6(2), (138-149). doi:10.1016/j.jrmge.2014.01.007

The high profile failure of the Malahide Viaduct in Dublin, Ireland, which is a part of the EU TEN-T network of critical transport links, was caused by foundation scour. Scour is a common soil-structure interaction problem. In light of current change... Read More about A review of bridge scour monitoring techniques.

An investigation of the changes in the natural frequency of a pile affected by scour (2013)
Journal Article
Prendergast, L., Hester, D., Gavin, K., & O’Sullivan, J. (2013). An investigation of the changes in the natural frequency of a pile affected by scour. Journal of Sound and Vibration, 332(25), 6685-6702. https://doi.org/10.1016/j.jsv.2013.08.020

Scour around bridge foundations is one of the leading causes of bridge failure. Up until recently, the monitoring of this phenomenon was primarily based around using underwater instrumentation to monitor the progression of scour holes as they develop... Read More about An investigation of the changes in the natural frequency of a pile affected by scour.