Browsing by Author "O'Connor, Alan"
Now showing items 1-14 of 14
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A Proposed Fuzzy-based Optimisation Model for Evaluating Construction Projects' Risk Response Strategies
Al-Mhdawi, Mohammed; Al-Saedi, Mohammed; Dacre, Nicholas; ICASP14; Qazi, Abroon; O'Connor, Alan (2023)The aim of this paper is to develop a fuzzy-based optimisation model for selecting the most appropriate construction risk response strategies by surveying construction experts in Iraq. A two-step research methodology was ... -
Adaptive Kriging with biased randomisation for reliability analysis of complex limit state functions
TEIXEIRA, RUI DUARTE; O'Connor, Alan; Nogal, Maria (2019)The present paper researches an innovative approach in the application of meta-modelling for reliability analysis. It consists in the usage of a priori knowledge about the problem being analysed in order to improve the ... -
CERCOM - Development of an analytic software tool for the evaluation of innovative infrastructure maintenance methods in the move towards circularity
O'Connor, Alan; Varveri, Aikaterini; ICASP14; Singh, Avishreshth; OBrien, Eugene; Sheils, Emma; Connolly, Lorcan (2023)Implementation of the circular economy (CE) has the potential to play a significant role in limiting global climate change whilst providing regenerative design for generations to come. To achieve climate neutrality, synergies ... -
Fatigue reliability using a multiple surface approach
TEIXEIRA, RUI DUARTE; O'Connor, Alan; Nogal, Maria (2019)Reliability analysis for offshore wind turbine structural fatigue is an effort demanding task. The new trends in the design of these systems, such as, the usage of alternative computational fluid dynamics or finite element ... -
Guideline for Reliability-Based Classification of Existing Bridges
Pedersen, Claus; O'Connor, Alan; ICASP14; Roldsgaard, Joan Hee (2023)This paper presents the newly updated Danish guideline for reliability-based classification of existing bridges published by the Danish Road Directorate in 2023. The update of the guideline reflects the commitment to ... -
Interpolation of confidence intervals for fatigue design using a surrogate model
Teixeira, Rui; O'Connor, Alan (2018)For complex systems, the applicability of surrogate models has shown the potential to enable accurate assessments using a reduced batch of data and to compile information about large datasets. These behave as black-box ... -
On the calculation of offshore wind turbine load spectra for fatigue design
TEIXEIRA, RUI DUARTE; Nogal, Maria; O'Connor, Alan (2018)The present work researches on the definition of the load spectra used for offshore wind turbine low SN slope materials’ fatigue design. Uncertainty in the sample sized used to scale fatigue life is analyzed for the tower ... -
On the suitability of the Generalised Pareto to model extreme waves
TEIXEIRA, RUI DUARTE; Nogal, Maria; O'Connor, Alan (2018)Dealing with extreme events implies working with events that have low probability of occurrence. To characterize these, the peak-over-threshold method alongside the generalized Pareto distribution is commonly applied. ... -
Probabilistic sensitivity analysis of offshore wind turbines using a transformed Kullback-Leibler divergence
TEIXEIRA, RUI DUARTE; O'Connor, Alan; Nogal, Maria (2019)Characterizing uncertainty in complex systems is steadily growing as a topic of interest. One of the efficient ways to characterize a complex system is achieved by probabilistic sensitivity analysis. In the context of this ... -
Probability Based Pavement Asset Management
Feighan, Kieran; O'Connor, Alan; ICASP14; McGowan, Ray (2023)Deterministic Pavement Deterioration models are commonly used due to their relative simplicity, ease of use, and familiarity. The modelling techniques include straight-line extrapolation, S-shaped curves, polynomial ... -
Surrogate infill criteria for operational fatigue reliability analysis
TEIXEIRA, RUI DUARTE; O'Connor, Alan; Nogal, Maria (2018)Analysis of Offshore Wind Turbine (OWT) fatigue damage is an intense, resource demanding task. While the current methodologies to design OWT to fatigue are quite limited in the way and amount of uncertainty they can ... -
The development of a Fibre Bragg Grating river scour sensor utilizing vortex flow
Campbell, Kristopher; Nieuwland, Remco; O'Connor, Alan; ICASP14; Taylor, Susan; Lydon, Myra (2023)The ability to effectively manage the deterioration of a network wide bridge stock condition from year on year is vital for the effective use of finite resources while maintaining public safety. The leading cause of bridge ... -
Uncertainty Quantification of Semi Destructive Testing for chloride content assessment for a concrete bridge in maritime environment
ICASP14; Bonnet, Stéphanie; O'Connor, Alan; Keita, Awa; Schoefs, Franck (2023)Harbors play a major socio-economic role in almost all littoral countries with more than 80% of trade exchange and play also usually a key role for military defense. Reinforced Concrete (RC) structures in harbors are ... -
Use of Traffic Data in Bridge Assessment an IABSE Initiative
Lilja, Heikki; ICASP14; O'Connor, Alan (2023)The bridge community is committed into creating safe and sustainable structures for future generations. During the drafting work of bridge design standards many compromises are needed to achieve a consensus, and the resulting ...