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IABSE Symposium, Vancouver 2017: Engineering the Future
A novel approach is being used to measure the progressive axial shortening of key structural elements of Principal Tower, a 50-storey reinforced concrete building in London, as it is being built. Distributed fibre optic sensor (DFOS) cables are embedded inside two columns and two core walls, from which the axial strain profile can be measured along the whole height of the constructed elements. Measurements are being taken regularly throughout the construction process, making it possible todoi:10.2749/vancouver.2017.1486 fatcat:nifz32g4wjcc3ntjxy7e4sqxle