A filament wound pillar for a pedestrian bridge

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Abstract

This report describes the research done on the possibilities of a structural element in the built environment made using the ‘coreless’ filament winding composite forming technique. The focus lies with the combination of a loadbearing capacity and an aesthetic value specifically derived from this production technique. This is done by the design of a pillar for a pedestrian bridge. The report contains a literature study on both the technique and its common materials. However, the core of the research is done by physical and digital modelling and concluded with physical tests of two types of one to five scaled mock-ups. The first part focusses on the possibilities and aesthetic of the shape, the second part seeks to substantiate the structural probabilities. The result is a design of a pillar with a suggestion for the supports to the bridge deck and the ground. The design seems feasible but further research is needed before the capacities of the design can fully be substantiated and the product can be put in practice. The current obstacles include uncertainties in the used calculation software, the interaction of the different wound bundles and the durability of the composite material. Shown is that an aesthetic value can be gained from the technique and the material whilst maintaining structural capacity. A lightweight product can be constructed and diversity can be achieved according to the described principle.