图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
合成材料:力学,计算和应用
ESCI SJR: 0.354 SNIP: 0.655 CiteScore™: 1.2

ISSN 打印: 2152-2057
ISSN 在线: 2152-2073

合成材料:力学,计算和应用

DOI: 10.1615/CompMechComputApplIntJ.v4.i3.10
pages 187-207

HETEROGENEOUS AND CONTINUOUS MODELS: COMPARATIVE ANALYSIS OF MASONRY WALL SUBJECTED TO DIFFERENTIAL SETTLEMENTS

Carlo Casalegno
IUAV University of Venice, Dorsoduro 2206, 30123 Venice, Italy
Antonella Cecchi
Department of Architecture Construction Conservation (DACC), University IUAV of Venice, Dorsoduro 2206, Venice, 30123, Venice, Italy
Emanuele Reccia
Department of Architecture Construction Conservation (DACC), University IUAV of Venezia, Italy
Salvatore Russo
Laboratory of Strength sof Materials, Department of Design in Complex Environment, Iuav University of Venice, Dorsoduro 2206, Convento delle Terese, 30123 Venice, Italy

ABSTRACT

The paper presents a comparative analysis of the structural behavior of historical masonry buildings subjected to differential vertical displacements. The work is actually the first step of a wider research into the seismic retrofitting of historical masonry buildings through base isolation systems. In detail, two different approaches to masonry modeling have been adopted: a homogenized model and a heterogeneous model. Homogenization procedures allow modeling masonry as an equivalent continuum but with account for the real configuration of masonry material. Instead, in the heterogeneous modeling strategy, masonry units and mortar are distinctly described using continuum or discontinuous elements, blocks, joints and/or interfaces. Although the heterogeneous modeling allows a better description of the masonry behavior, the need of modeling separately bricks and mortar limits its applicability to small panels, while continuous modeling may be easily applied to large portions of masonry structures. A parametric analysis has been carried out on simple wall panels in order to evaluate the reliability of the two approaches and their capability to take into account some parameters that influence the structural behavior of masonry, such as the quality of constituent materials, the arrangement of bricks, the presence of openings. In this paper some of the results obtained are reported in order to provide a comparison between the two numerical approaches.


Articles with similar content:

FROM MICRO- TO MACROMODELS FOR IN-PLANE LOADED MASONRYWALLS: PROPOSITION OF A MULTISCALE APPROACH
International Journal for Multiscale Computational Engineering, Vol.11, 2013, issue 2
Antonella Cecchi, Alessia Vanin
A MODEL FOR COMPOSITE BRICKWORK-LIKE MATERIALS BASED ON DISCRETE ELEMENT PROCEDURE: SENSITIVITY TO DIFFERENT STAGGERED TIERS
Composites: Mechanics, Computations, Applications: An International Journal, Vol.3, 2012, issue 1
Antonella Cecchi
DISCRETE ELEMENT MODEL FOR IN-PLANE LOADED VISCOELASTIC MASONRY
International Journal for Multiscale Computational Engineering, Vol.12, 2014, issue 2
Daniele Baraldi, Antonella Cecchi
Asymptotic Homogenization Models for Smart Composite Plates with Rapidly Varying Thickness: Part II—Applications
International Journal for Multiscale Computational Engineering, Vol.2, 2004, issue 1
A. V. Georgiades, A. L. Kalamkarov
Assessment of Periodic Homogenization-Based Multiscale Computational Schemes for Quasi-Brittle Structural Failure
International Journal for Multiscale Computational Engineering, Vol.7, 2009, issue 2
B. C. N. Mercatoris, T. J. Massart