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AE propagation velocity calculation for stiffness estimation in Pier Luigi Nervi’s concrete structures

: In the present paper, the acoustic emission (AE) device is used with an innovative approach, based on the calculation of P-wave propagation velocity (vp), to detect the stiffness characteristics and the diffused damage of in-service old concrete structures. The paper presents the result of a recent testing campaign carried out on the slant pillars composing the vertical bearing structures designed by Pier Luigi Nervi in one of his most iconic buildings: the Hall B of Torino Esposizioni.

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Special Issue Bridging the Gap. The Measure of Urban Resilience

Over the last few years, resilience has emerged as a “new way of thinking” for dealing with cities’ uncertainties and challenges. As promoted by UN Sustainable Development Goal 11, urban resilience is increasingly seen as a driver for change. At the same time, resilience is commonly criticized for being too ambiguous and an “empty signifier”, as it is difficult to operationalize it.

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