Browsing School of Engineering by Author "O'Connor, Alan"
Now showing items 1-20 of 24
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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 ... -
Assessment of the marine durability of self-compacting concrete using experimental testing and probabilistic modelling
Ryan, Paraic C. (Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2013)Chloride induced corrosion is recognised as the main cause of reinforced concrete deterioration for structures located in marine environments. The primary aim of this thesis is to examine the marine durability of a number ... -
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 ... -
Fragility analysis of steel and concrete wind turbine towers
Quilligan, Aidan (Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2013)As the issues of global warming and a finite supply of fossil fuel based energy gain significance, the prospects and necessity for renewable energy concepts have become both socially and economically relevant. At the ... -
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 ... -
Influence on spatial variability on whole life management of reinforced concrete bridges
Kenshel, Omran Mohamed (Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2009)The number of deteriorating bridges due to chloride-induced corrosion increases annually as does the cost of inspection, maintenance, repair and where necessary replacement. Meanwhile, budgets made available to bridge ... -
Interface shear behaviour of precast prestressed concrete beams with slebers webs in beam and slab construction
SLEVIN, MICHAEL (Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2019)All over the world precast prestressed concrete bridge beams are commonly used in small to medium sized highway and railway bridges, i.e. 20-50m spans. The majority of these bridges are built using I and U shaped precast ... -
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. ... -
Optimisation of inspection planning for structures
Sheils, Emma (Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2009)The main aim of this thesis was the development of a maintenance management methodology which incorporates two aspects of a structural inspection, i.e. (i) detection of a defect and (ii) sizing of a defect. Markov transition ... -
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 ... -
Seismic reliability assessment of ageing integral bridges
Ní Choine, Mairéad (Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2014)This thesis carries out a tune dependent seismic risk assessment of ageing integral bridges as well as providing a comparison between the seismic performance of integral and jointed bridges. -
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 bridge network lifecycle prediction model for the Irish network
Reale, Tara M. (Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2013)The main aim of this thesis was the development of a bridge network condition prediction tool for the Irish network. This has been carried out with the intention of enabling the developed module to be incorporated into ...