Analytical Models for Brick Masonry Infilled R/C Frames Under Lateral Loading

Kappos, Andreas J.; Stylianidis, K.; Michailidis, Charalampos

doi:10.1080/13632469809350314

Cited by 43 publications

(24 citation statements)

References 4 publications

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“…Madan et al 1997, Kappos et al 1998, Dolsek and Fajfar 2002, Skafida et al 2014) yielding satisfactory agreement between analytical and experimental results. According to Chrysostomou and Asteris (2012), the general consensus is that a single equivalent-strut approach (two struts per panel for reversed cyclic loading analysis, one across each diagonal) may be successfully used for design and evaluation studies of infilled frame systems.…”

Section: Introductionsupporting

confidence: 57%

Analytical Modeling of Masonry-Infilled RC Frames Retrofitted with Textile-Reinforced Mortar

2015

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Abstract:The present paper proposes an analytical approach for modeling the behavior of textilereinforced mortar (TRM)-strengthened masonry-infilled reinforced concrete (RC) frames under seismic loading. The model falls into the discrete diagonal-element type and is based on the use of single-strut and single-tie elements to represent the infill panel. It builds on the results of past experimental studies by the authors in which the application of TRM jacketing was proved to be effective for the seismic retrofitting of masonry infilled RC frames. The model is implemented in the non-linear finite element code Opensees, with the parameters of the diagonal elements being determined from a series of tests on TRM coupons and masonry specimens. Finally, the results of the numerical analyses are compared with the experimental data of cyclic tests on three-story masonry infilled RC frames, as-build and after retrofitting.It is shown that the model developed herein adequately accounts for the TRM-strengthening contribution to the global response of masonry infilled frames.

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Section: Introductionsupporting

confidence: 57%

Analytical Modeling of Masonry-Infilled RC Frames Retrofitted with Textile-Reinforced Mortar

2015

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“…R/C members were modelled using lumped plasticity beam-column elements, while infill walls were modelled using the diagonal strut element for the inelastic static analyses, and the shear panel isoparametric element for the inelastic dynamic analyses, as developed in previous studies (Kappos et al 1998a, Kappos andDymiotis 2000).…”

Section: Inelastic Analysis Of R/c Buildingsmentioning

confidence: 99%

A hybrid method for the vulnerability assessment of R/C and URM buildings

Kappos

Panagopoulos

Panagiotopoulos

et al. 2006

Bull Earthquake Eng

314

180

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The methodology followed by the Aristotle University (AUTh) team for the vulnerability assessment of reinforced concrete (R/C) and unreinforced masonry (URM) structures is presented. The paper focuses on the derivation of vulnerability (fragility) curves in terms of peak ground acceleration (PGA), as well as spectral displacement (s d ), and also includes the estimation of capacity curves, for several R/C and URM building types. The vulnerability assessment methodology is based on the hybrid approach developed at AUTh, which combines statistical data with appropriately processed (utilising repair cost models) results from nonlinear dynamic or static analyses, that permit extrapolation of statistical data to PGA's and/or spectral displacements for which no data are available. The statistical data used herein are from earthquake-damaged greek buildings. An extensive numerical study is carried out, wherein a large number of building types (representing most of the common typologies in S. Europe) are modelled and analysed. Vulnerability curves for several damage states are then derived using the aforementioned hybrid approach. These curves are subsequently used in combination with the mean spectrum of the Microzonation study of Thessaloniki as the basis for the derivation of new vulnerability curves involving spectral quantities. Pushover curves are derived for all building types, then reduced to standard capacity curves, and can easily be used together with the S d fragility curves as an alternative for developing seismic risk scenarios.

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“…Therefore, this investigation strictly regards the ÿrst storey. This is worthwhile, because it has been found in the ÿeld [21], experimentally [7], and numerically [2,[21][22][23] that inÿlls' (in-plane) damage tends to concentrate in the ÿrst few storeys.…”

Section: Outcome Descriptionmentioning

confidence: 98%

Pseudo-dynamic seismic response of reinforced concrete frames infilled with non-structural brick masonry

Colangelo

2005

Earthquake Engng Struct. Dyn.

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SUMMARYThis paper presents pseudo-dynamic test results on the in-plane seismic behaviour of inÿlled frames. Thirteen single-storey, single-bay, half-size-scale, reinforced concrete-frame specimens, most of which inÿlled with non-structural masonry made of perforated bricks and cement mortar are tested. The inÿlls are in contact with frames, without any connector; openings are not covered. The frames are di erent in their strength and details, reinforcement grade, and aspect ratio. Seismic input is the 1976 Tolmezzo (Friuli, Italy) ground acceleration, to which specimens are subjected two times: virgin and damaged by the previous test. The global seismic response of initially virgin inÿlled specimens considerably di ers from that of bare specimens. This follows a dramatic change of properties: compared to a bare frame, the initial sti ness increases by one order of magnitude, and the peak strength more than doubles. The peak drift lessens; however, the displacement ductility demand does not. The energy demand is greater. Nevertheless, the in uence of inÿll decreases as damage proceeds. Displacement time histories of damaged specimens are quite similar. At the local level, inÿll causes asymmetry and concentration of the frame deformation.

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Analytical Models for Brick Masonry Infilled R/C Frames Under Lateral Loading

Cited by 43 publications

References 4 publications

Analytical Modeling of Masonry-Infilled RC Frames Retrofitted with Textile-Reinforced Mortar

Analytical Modeling of Masonry-Infilled RC Frames Retrofitted with Textile-Reinforced Mortar

A hybrid method for the vulnerability assessment of R/C and URM buildings

Pseudo-dynamic seismic response of reinforced concrete frames infilled with non-structural brick masonry

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