Vol. 14, No. 5, 2019

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The rocking: a resource for the side strength of masonry structures

Mario Como

Vol. 14 (2019), No. 5, 751–770
Abstract

Masonry constructions activate rocking motions endeavouring to elude the action of horizontal impulse accelerations, typical of seismic actions. They can reach the dynamical collapse under acceleration impulse with intensity much higher than the one that causes the static collapse. Sudden changes of mechanisms take place during the rocking with the occurrence of impacts and consequent energy losses. Research on the topic has been generally carried out examining various schemes of structural components, as a rule considered or as a solid block or subdivided in a sequence of blocks connected by hinges. Innovative aspect of the paper, on the contrary, that collects also some results of the author, is the analysis of the influence on the rocking motion at the onset of oblique cracks that sway diagonally during the rocking of masonry walls.

Keywords
masonry piers and walls, rocking, cracking, acceleration pulse
Milestones
Received: 27 May 2018
Revised: 27 September 2019
Accepted: 18 October 2019
Published: 31 December 2019
Authors
Mario Como
Department of Civil Engineering and Computer Science Engineering (DICII)
University of Rome Tor Vergata
Via del Politecnico 1
00133 Rome
Italy