Civil Structural & Environ Eng (Theses and Dissertations): Recent submissions
Now showing items 81-100 of 205
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The application of genetic algorithms to civil engineering optimisation problems
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2001)Genetic algorithms are optimisation algorithms that mimic the mechanisms of natural selection. This thesis is concerned with the theoretical development of genetic algorithms and with their successful application to civil ... -
Probabilistic traffic load modelling for highway bridges
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2001)Live load models prescribed by codes for the design and assessment of highway bridges have traditionally been based on conservative subjective assumptions regarding maximum lifetime load. Modern bridge design codes have ... -
Estimating the ground deformations associated with earthworks and foundations in boulder clay
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2003)Accurate estimates of the ground deformations associated with earthworks and foundations in boulder clay necessitate the validation of an appropriate soil model within a simplified ground model. Recent advances in numerical ... -
Monitoring and prediction of traffic-related urban air pollution
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2001)This research project involved the investigation of urban air quality with a view to (a) adding to the limited information on the state of the atmospheric environment in Dublin, Ireland and (b) formulating a methodology ... -
Development of accurate methods of weighing trucks in motion
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2001)The need to weigh and classify vehicles is based on the damage that large trucks cause to road infrastructure. Weigh-in-Motion (WIM) data can be used to predict future traffic volumes and weights for the planning of new ... -
Experimental and theoretical investigations of pile and penetrometer installation in clay
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2000)This thesis advances our understanding of the type of ground movements and strains that take place during installation of closed-ended piles and penetrometers in clay, with particular reference to penetrometers with flat ... -
Experimental investigation on the stabilisation of Irish peat
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2001)This thesis presents the findings of a study of the behaviour of a typical Midland Irish peat when mixed with a binder. The study shows that the strength of the peat can be considerably increased by the addition of various ... -
Modelling of vehicular emissions and their potential environmental, health, and economic impacts
(Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2019)Road traffic is one of the greatest contributors to greenhouse gas and reducing it has become one of the main targets for sustainable transport policies. Analysis of the main factors influencing greenhouse gas emissions ... -
Greenhouse gas emissions from on-site wastewater treatment systems
(Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2019)Domestic wastewater is rich in carbon and nitrogen and given the biogeochemical transformations that these compounds undergo during different treatment processes can be significant sources of greenhouse gas (GHG) emissions. ... -
Nitrate responses in groundwater under grassland dairy agriculture
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2004)A considerable body of research already exists on establishing nitrate dynamics in agricultural systems' subsoils. However, the capacity to predict rates of nitrogen arrival at the receiving environment, namely surface or ... -
The Response and Optimisation of Hybrid Wind Turbine Towers
(Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2019)This thesis investigates the response and optimisation of wind turbine tower structures with a particular emphasis on hybrid steel-concrete towers. The wind turbine blades with tower interaction are represented through ... -
Vibration control of structures using active and semi-active tuned mass dampers
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2006)This study addresses the vibration control of tall and flexible structures, such as wind turbine towers (WTTs). Investigations into the use of single and multiple tuned mass dampers (TMDs) with passive, active and semi-active ... -
The attenuation capacity of different subsoils receiving domestic wastewater effluent
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2005)With the domestic wastewater effluent of approximately 400,000 dwellings in Ireland being discharged to groundwater annually and about 25% of all water supplies in the country provided by groundwater a risk of contamination ... -
The use of counter-moments for steel beam strengthening
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2007)Many methods exist for the repair and strengthening of beams. With increasing traffic volumes and axle weights, the demand for performance of highway structures has increased. In new construction the demand optimised ... -
The use of ICT to re-engineer purchasing in Irish construction
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2007)The process traditionally adopted in the purchasing of materials in the construction industry is investigated. There are millions of trading documents, such as orders, delivery notes and supplier invoices, currently exchanged ... -
Analysis of wheel-rail contact forces resulting from vertical track irregularity
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2007)The research that is described in this thesis is based upon the formulation and analysis of mathematical models of railway vehicle and track systems. The objective of the research carried out is to compile, and then apply, ... -
Earthquake resistant hollow and filled steel braces
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2004)The earthquake resistance of many building structures is provided by steel bracing members. Although the use of tension-only concentric bracing is common, the behaviour of these systems is not fully understood, and ... -
Consolidant treatment of Irish sandstone
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2007)The objective of this study was to assess the efficiency of consolidant treatments in improving the durability of Irish sandstones. Samples of sandstones relevant to national monuments were characterised, artificially ... -
Tracer study investigation into reactor mixing characterisation
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2005)The hydraulic characterization of flow through a reactor is essential for a complete understanding of the process for which the reactor has been designed. The goal of hydraulic characterization of a continuous flow process ... -
Development and application of an integrated air quality modelling system for traffic related pollution in urban areas
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2001)An Air Quality Modelling System (AQMS) has been developed for metropolitan areas in Europe and applied in Dublin. The primary objective of this AQMS is to incorporate die latest knowledge on traffic and air quality at a ...
