Title: Analytical modelling for the seismic assessment of pointed arches supported by buttresses

Authors: Giuseppe Brandonisio; Antonello De Luca

Addresses: Department of Structures for Engineering and Architecture (Di.St.), University of Studies of Naples 'Federico II', P.le Tecchio 80, 80125 Naples, Italy ' Department of Structures for Engineering and Architecture (Di.St.), University of Studies of Naples 'Federico II', P.le Tecchio 80, 80125 Naples, Italy

Abstract: The seismic behaviour of arches is investigated to provide a contribution to the stability of arches with a pointed shape supported by buttresses. The limit analysis (LA) for masonry structures has been herein implemented in analytical modelling based on the use of nonlinear programming techniques for investigating the potential failure mechanisms associated with pointed arches under horizontal forces. A critical assessment of the positioning of hinges over the arch embrace is conducted here. This will allow for a better prediction of the capacity of these structures under seismic actions. The lateral action, which activates the investigated failure mechanisms, is also computed by implementing this new analytical model. This is assessed both in terms of horizontal loading multiplier and associated ground accelerations. Furthermore, by comparing numerical results derived from scientific literature, it was possible to validate the reliability of the here presented analytical model.

Keywords: masonry; pointed arches; pier walls; limit analysis; seismic assessment; analytical modelling.

DOI: 10.1504/IJMRI.2021.118821

International Journal of Masonry Research and Innovation, 2021 Vol.6 No.4, pp.384 - 404

Received: 06 Jul 2020
Accepted: 19 Oct 2020

Published online: 08 Nov 2021 *

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