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- W1815239013 abstract "The deterioration of existing bridge structures due to a number of causes has led researchersto pursue new construction materials with high performance, such as fibre reinforced polymer(FRP) composite materials. The inherent properties of FRP materials are their light weight,high strength and high resistance to aggressive environments. Thanks to their light weight andthe potential for prefabrication, the use of FRP bridge elements brings the benefits ofindustrial bridge construction and swift on-site assembly, resulting in the minimisation oftraffic disruption. The application of FRP members in bridges started in the early 1990s andthere remains a need for research in various technical areas. To map out these areas andspecify the current level of knowledge, a literature review focusing on FRP bridge decks wascarried out. This resulted in the identification of a number of research needs and two of themwere pursued for research in this thesis.The first was to determine the potential of bridges with FRP bridge decks with respect tosustainability. Life-cycle cost analyses and life-cycle assessments in terms of carbonemissions were carried out on an existing steel-concrete bridge with a deck that haddeteriorated where two scenarios were compared: the total replacement of the bridge with anew steel-concrete bridge and the replacement of the concrete deck with an FRP deck. Theanalyses revealed that the latter scenario contributes to potential cost savings and a reducedenvironmental impact in terms of carbon emissions over the life cycle of the bridge.The second identified research need was the development of integral connections and jointswhich enable rapid on-site assembly. Firstly, an innovative panel-level connection wasdeveloped by following an approach in which the bridge owner, designer, manufacturer andcontractor were all involved. Numerical and experimental work was carried out to investigatethe overall structural behaviour of the developed connection. The results showed that theproposed connection has good potential to be used for FRP decks, but more experimental testsencompassing specimens with a higher level of precision are required. In addition, a detailedstudy of bolted joints with the aim of obtaining non-slip joints, when clearance is present, inthe service state of bridges was carried out. The utilisation of steel inserts and pretensionedbolts was investigated numerically and experimentally. The results indicated that it is possibleto benefit from the bolt tension and rely on the load being transferred by friction if steelinserts are used. Bolt-tension-relaxation issues are reduced by using inserts and jointefficiency can be increased." @default.
- W1815239013 created "2016-06-24" @default.
- W1815239013 creator A5048941145 @default.
- W1815239013 date "2015-01-01" @default.
- W1815239013 modified "2023-09-27" @default.
- W1815239013 title "Development of connections for fibre reinforced bridge elements and an analysis of sustainability" @default.
- W1815239013 hasPublicationYear "2015" @default.
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