Strutture intelaiate e tamponate in c.a.: sperimentazione e sviluppi nella modellazione analitica e numerica

Research output: Contribution to conferenceOther

Abstract

The presence of masonry infills in RC structures may have a fundamental role in response under seismic excitation, especially in the case of structures designed for gravity loads only and without seismic details. Studies of many authors show important modifications of response in terms of strength, stiffness, ductility and safety evaluation. The recent large development ofnonlinear seismic, static and dynamical methods requires a relevant effort in modelling with a reliable, and at the same time easy for practical using, constitutive laws for infill panels.In this context the present study provide an experimental investigation on single story, single bay, half scale frames, fully infilled with different kinds of masonry and subjected to lateral cyclicalloads showing the relevant role of infills in structural response depending also from masonry mechanical properties.A suitable way for modelling this phenomenain FEM codes is the choice of a multi linear plastic link element with a Pivot hysteretic law appropriately calibrated on experimental results. In this paper, experimental campaign results for before mentioned infilled frames are presented in comparison with numerical response of the proposed modelling with a pivot model law. Calibrating strategy and consequent suggested values for the parameters of the pivot model are also provided.
Original languageItalian
Pages449-460
Number of pages12
Publication statusPublished - 2012

Cite this

@conference{0092ce7f6250466b9e6acaeda4850c1c,
title = "Strutture intelaiate e tamponate in c.a.: sperimentazione e sviluppi nella modellazione analitica e numerica",
abstract = "The presence of masonry infills in RC structures may have a fundamental role in response under seismic excitation, especially in the case of structures designed for gravity loads only and without seismic details. Studies of many authors show important modifications of response in terms of strength, stiffness, ductility and safety evaluation. The recent large development ofnonlinear seismic, static and dynamical methods requires a relevant effort in modelling with a reliable, and at the same time easy for practical using, constitutive laws for infill panels.In this context the present study provide an experimental investigation on single story, single bay, half scale frames, fully infilled with different kinds of masonry and subjected to lateral cyclicalloads showing the relevant role of infills in structural response depending also from masonry mechanical properties.A suitable way for modelling this phenomenain FEM codes is the choice of a multi linear plastic link element with a Pivot hysteretic law appropriately calibrated on experimental results. In this paper, experimental campaign results for before mentioned infilled frames are presented in comparison with numerical response of the proposed modelling with a pivot model law. Calibrating strategy and consequent suggested values for the parameters of the pivot model are also provided.",
keywords = "Telai tamponati in zona sismica, modellazione, puntone diagonale equivalente, sperimentazione",
author = "Liborio Cavaleri and {Di Trapani}, Fabio and Maurizio Papia",
year = "2012",
language = "Italian",
pages = "449--460",

}

TY - CONF

T1 - Strutture intelaiate e tamponate in c.a.: sperimentazione e sviluppi nella modellazione analitica e numerica

AU - Cavaleri, Liborio

AU - Di Trapani, Fabio

AU - Papia, Maurizio

PY - 2012

Y1 - 2012

N2 - The presence of masonry infills in RC structures may have a fundamental role in response under seismic excitation, especially in the case of structures designed for gravity loads only and without seismic details. Studies of many authors show important modifications of response in terms of strength, stiffness, ductility and safety evaluation. The recent large development ofnonlinear seismic, static and dynamical methods requires a relevant effort in modelling with a reliable, and at the same time easy for practical using, constitutive laws for infill panels.In this context the present study provide an experimental investigation on single story, single bay, half scale frames, fully infilled with different kinds of masonry and subjected to lateral cyclicalloads showing the relevant role of infills in structural response depending also from masonry mechanical properties.A suitable way for modelling this phenomenain FEM codes is the choice of a multi linear plastic link element with a Pivot hysteretic law appropriately calibrated on experimental results. In this paper, experimental campaign results for before mentioned infilled frames are presented in comparison with numerical response of the proposed modelling with a pivot model law. Calibrating strategy and consequent suggested values for the parameters of the pivot model are also provided.

AB - The presence of masonry infills in RC structures may have a fundamental role in response under seismic excitation, especially in the case of structures designed for gravity loads only and without seismic details. Studies of many authors show important modifications of response in terms of strength, stiffness, ductility and safety evaluation. The recent large development ofnonlinear seismic, static and dynamical methods requires a relevant effort in modelling with a reliable, and at the same time easy for practical using, constitutive laws for infill panels.In this context the present study provide an experimental investigation on single story, single bay, half scale frames, fully infilled with different kinds of masonry and subjected to lateral cyclicalloads showing the relevant role of infills in structural response depending also from masonry mechanical properties.A suitable way for modelling this phenomenain FEM codes is the choice of a multi linear plastic link element with a Pivot hysteretic law appropriately calibrated on experimental results. In this paper, experimental campaign results for before mentioned infilled frames are presented in comparison with numerical response of the proposed modelling with a pivot model law. Calibrating strategy and consequent suggested values for the parameters of the pivot model are also provided.

KW - Telai tamponati in zona sismica

KW - modellazione

KW - puntone diagonale equivalente

KW - sperimentazione

UR - http://hdl.handle.net/10447/78977

M3 - Other

SP - 449

EP - 460

ER -