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Buildings 2015, 5(2), 597-621; doi:10.3390/buildings5020597

Time-History Seismic Analysis of Masonry Buildings: A Comparison between Two Non-Linear Modelling Approaches

Department of Civil and Environmental Engineering (DICeA), University of Florence, Via di Santa Marta, 3-I-50139 Firenze, Italy
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Academic Editor: Ali Memari
Received: 25 February 2015 / Revised: 13 May 2015 / Accepted: 18 May 2015 / Published: 26 May 2015
(This article belongs to the Special Issue Seismic-Resistant Building Design)
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Abstract

The paper presents a comparison between two numerical modelling approaches employed to investigate the seismic behavior of unreinforced masonry buildings with flexible diaphragms. The comparison is performed analyzing a two-story prototype tested on a shaking table at the CNR-ENEA research center of Casaccia (Italy). The first numerical model was built by using the finite element (FE) technique, while the second one was built by a simplified macro-element (ME) approach. Both models were employed to perform non-linear dynamic analyses, integrating the equations of motion by step-by-step procedures. The shaking table tests were simulated to analyze the behavior of the prototype from the initial elastic state until the development of extensive damage. The main results of the analyses are discussed and critically compared in terms of engineering parameters, such as accelerations, displacements and base shears. The effectiveness of both models within the investigated typology of buildings is then evaluated in depth. View Full-Text
Keywords: unreinforced masonry buildings; finite element (FE) models; macro-element (ME) models; time-history non-linear analysis; seismic loading; flexible diaphragms unreinforced masonry buildings; finite element (FE) models; macro-element (ME) models; time-history non-linear analysis; seismic loading; flexible diaphragms
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Betti, M.; Galano, L.; Vignoli, A. Time-History Seismic Analysis of Masonry Buildings: A Comparison between Two Non-Linear Modelling Approaches. Buildings 2015, 5, 597-621.

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