6533b835fe1ef96bd129f6df

RESEARCH PRODUCT

Definition of diagonal Poisson's ratio and elastic modulus for infill masonry walls

Piero ColajanniMaurizio PapiaLiborio CavaleriF. Di TrapaniGiuseppe Macaluso

subject

Masonry infillEngineeringDiagonalYoung's modulusinfills; framed structures; equivalent strut; Poisson’s ratio.Orthotropic materialPoisson distributionsymbols.namesakeComputer Science::Computational Engineering Finance and ScienceGeneral Materials ScienceGeotechnical engineeringMechanics of MaterialElastic modulusCivil and Structural EngineeringMasonry infillsbusiness.industryinfillsStructural engineeringBuilding and ConstructionMasonryFramed structurePoisson's ratioPoisson’s ratioPoisson's ratioSettore ICAR/09 - Tecnica Delle CostruzioniMechanics of Materialsequivalent strutSolid mechanicssymbolsEquivalent strut; Framed structures; Masonry infills; Poisson's ratio;framed structuresMaterials Science (all)business

description

The prediction of the response of infilled frames through the simplified approach of substituting the infill with an equivalent pin-jointed strut is treated. In this framework the results of an experimental study for the mechanical characterization of different types of masonry infills having the aim of estimating strength, Young modulus and Poisson's ratio are presented. Four types of masonry were investigated and subjected to ordinary compressive tests orthogonally to the mortar beds and along the directions of the mortar beds. The experimental campaign confirmed the possibility of using an orthotropic plate model for prediction of the Poisson's ratio and Young modulus along the diagonal direction of infills (these parameters are requested by a model already known in the literature for the identification of struts equivalent to masonry infills). The experimental campaign made it possible to recognise a correlation between the Poisson's ratios and the strengths of masonries investigated along the orthotropic axes and to obtain the diagonal Poisson's ratio without specific experimental tests. Finally, the experimental responses of some infilled frames were used to test the reliability of the model proposed here. © 2013 RILEM.

10.1617/s11527-013-0058-9http://hdl.handle.net/11570/2429296