Title: Presentation and validation of a specific RBSM approach for the meso-scale modelling of in-plane masonry-infills in RC frames

Authors: Giuseppina Uva; Vito Tateo; Siro Casolo

Addresses: Department Dicatech, Politecnico di Bari, Via E. Orabona 4, 70126 Bari, Italy ' Department ABC, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milano, Italy ' Department ABC, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milano, Italy

Abstract: In the last few years, the scientific community has been strongly involved in the development of approaches able to incorporate the contribution of infill walls in seismic vulnerability analysis of infilled RC framed buildings. The detailed meso-scale modelling of panels within global models as an alternative to equivalent strut models is still a challenge because of the difficulties in controlling constitutive parameters and the high computational effort. The potential of rigid body and spring models (RBSMs) in this field is investigated by exploiting a specific code for the nonlinear analysis of in-plane masonry with an efficient computational management. The reference benchmark is an infilled one-bay one-storey frame that was subjected to cyclic tests within an experimental campaign and has been here modelled by RBSM, performing a set of numerical parametrical analyses under lateral loads. A good general matching of results and effective computational performance have been found.

Keywords: masonry infill; infilled RC frames; rigid body and spring model; RBSM; pushover analysis; in-plane mechanisms.

DOI: 10.1504/IJMRI.2020.107995

International Journal of Masonry Research and Innovation, 2020 Vol.5 No.3, pp.366 - 395

Received: 15 Dec 2018
Accepted: 29 May 2019
Published online: 01 Jul 2020 *

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