An appraisal of smeared crack models for masonry shear wall analysis

Lotfi, Hamid Reza; Shing, P. Benson

doi:10.1016/0045-7949(91)90134-8

Cited by 161 publications

(80 citation statements)

References 6 publications

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“…1 a Infill walls collapse (Romão et al 2013), b soft-storey mechanism (Costa et al 2010) and c out-of-plane and in-plane damage mechanisms in exterior masonry walls (Romão et al 2013) panel nonlinear material properties. Lofti and Shing studied in 1991 the efficiency of homogenous smeared-crack models to capture the response of reinforced masonry wall, and they showed that the smeared-crack model can accurately capture the flexural failure of the reinforced masonry wall (Lofti and Shing 1991). Mehrabi and Shing (1997) proposed a simplified micro-modelling model that simulated the cracking, crushing and sliding of masonry panel for cyclic and monotonic response.…”

Section: Micro-modellingmentioning

confidence: 99%

Modelling of masonry infill walls participation in the seismic behaviour of RC buildings using OpenSees

Furtado

Rodrigues

Arêde

2015

Int J Adv Struct Eng

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Recent earthquakes show that masonry infill walls should be taken into account during the design and assessment process of structures, since this type of nonstructural elements increase the in-plane stiffness of the structure and consequently the natural period. An overview of the past researches conducted on the modelling of masonry infilled frame issues has been done, with discussion of past analytical investigations and different modelling approaches that many authors have proposed, including micro-and macro-modelling strategies. After this, the present work presents an improved numerical model, based on the Rodrigues et al. (J Earthq Eng 14:390-416, 2010) approach, for simulating the masonry infill walls behaviour in the computer program OpenSees. The main results of the in-plane calibration analyses obtained with one experimental test are presented and discussed. For last, two reinforced concrete regular buildings were studied and subjected to several ground motions, with and without infills' walls.

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Section: Micro-modellingmentioning

confidence: 99%

Modelling of masonry infill walls participation in the seismic behaviour of RC buildings using OpenSees

Furtado

Rodrigues

Arêde

2015

Int J Adv Struct Eng

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“…The necessity of using both plasticity and damage mechanics was discussed, and the corresponding surfaces were developed via the internal dissipation inequality. Lotfi and Shing (1991) assessed the capability of smeared crack models in capturing the strength and various failure mechanisms of reinforced masonry shear walls. A smeared finite element formulation adopting the J 2 plasticity model for uncracked masonry and a nonlinear orthotropic constitutive model for crack masonry were developed.…”

Section: Candidate Models For Concrete Masonry and Interface Elementsmentioning

confidence: 99%

Constitutive Models for Nonlinear Finite Element Analysis of Masonry Prisms and Infill Walls

Al-Chaar¹,

Mehrabi²

2008

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Abstract:After much previous research, many controversial issues related to well developed design recommendations and well accepted analytical procedures for infilled frames are still unresolved. The main difficulty in evaluating the performance of bearing and shear wall structures is determining the type of interaction between the infill and the frame, which has a major impact on the structural behavior and load-resisting mechanism. A simplified model that captures the characteristics of infill masonry would be valuable, but developing one requires understanding of masonry-infilled frame behavior in much more detail than strut or beam behavior. Numerical simulations using well calibrated constitutive models are needed for parametric studies to facilitate the development and calibration of a simple, accurate infill masonry model. The objective of this study was to identify suitable numerical constitutive models and demonstrate their capabilities. Two were studied here: a cohesive interface model to simulate the behavior of mortar joints between masonry units as well as the behavior of the frame-to-panel interface; and a smeared crack finite element formulation. The interface model was able to account for the shearing, residual shear strength, and opening and closing of joints under cyclic shear loads in simple combinations of concrete blocks and mortar joints.

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“…Seah [11] developed a two-dimensional FE model for analysis of infill-frames under in-plane loading. Lotfi and Shing [5,6], Mehrabi [12], and Stavridis and Shing [13] proposed and developed a masonry material model and an interface finite element. The existing models are applicable to either in-plane or out-ofplane loading, whereas in actual earthquakes they are applied at the same time.…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers utilized the finite element technique to study the in-plane behavior of masonry infilled frame structures, such as Liauw and Kwan [4], Lotfi and Shing [5,6], Lourenco [7], Lourenco and Rots [8,9], Haris and Hortobágyi [10]. Seah [11] developed a two-dimensional FE model for analysis of infill-frames under in-plane loading.…”

Section: Introductionmentioning

confidence: 99%

“…The crack patterns of in-plane and out-of-plane directions are quite similar as the 'X' style, which can influence each other [2]. The interaction between in-plane and out-of-plane loading is often ignored due to difficulties in both experiments and theoretical modelling.Many researchers utilized the finite element technique to study the in-plane behavior of masonry infilled frame structures, such as Liauw and Kwan [4], Lotfi and Shing [5,6], Lourenco [7], Lourenco and Rots [8,9], Haris and Hortobágyi [10]. Seah [11] developed a two-dimensional FE model for analysis of infill-frames under in-plane loading.…”

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confidence: 99%

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In-Plane Behavior of Masonry Infill Wall Considering Out-of-Plane Loading

Kong

Zhai

Wang

2016

Period. Polytech. Civil Eng.

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The in-plane seismic performance of framed masonry wall has been studied by many researchers all over the world, whereas structures subject not only in-plane load but also outof-plane IntroductionMasonry walls are used widely in RC frame structures for their flexibility in layout and economic. Reports on the failure of infilled RC frame structures observed under devastating earthquakes occurred in various regions of the world (such as Chi-Chi in 1999, Kocaeli in 1999, Central Peru in 2007, and Sichuan China in 2008 revealed that ignoring the infill effects in structural analyses may result in significant underestimation of the effects induced by the expected seismic shakings. In-plane failure and out-of-plane failure are the two main failure modes. The in-plane seismic performance has been studied by many researchers all over the world, whereas limited studies have considered the effect of the loadings in the out-of-plane direction that often occurs in the realistic events [1]. Angel [2] and Flanagan [3] are the rare examples which researched the bidirectional behavior of infilled frame. The crack patterns of in-plane and out-of-plane directions are quite similar as the 'X' style, which can influence each other [2]. The interaction between in-plane and out-of-plane loading is often ignored due to difficulties in both experiments and theoretical modelling.Many researchers utilized the finite element technique to study the in-plane behavior of masonry infilled frame structures, such as Liauw and Kwan [4], Lotfi and Shing [5,6], Lourenco [7], Lourenco and Rots [8,9], Haris and Hortobágyi [10]. Seah [11] developed a two-dimensional FE model for analysis of infill-frames under in-plane loading. Lotfi and Shing [5,6], Mehrabi [12], and Stavridis and Shing [13] proposed and developed a masonry material model and an interface finite element. The existing models are applicable to either in-plane or out-ofplane loading, whereas in actual earthquakes they are applied at the same time.In this paper, on the platform of ABAQUS software, the three dimensional separate finite element model with damageplasticity material models and the surface-based contact cohesive interaction model, which can simulate the out-of-plane and in-plane behavior of the framed masonry walls [14], is used to investigate the effect of the prior out-of-plane load on the inplane behavior of masonry infilled RC frame.

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An appraisal of smeared crack models for masonry shear wall analysis

Cited by 161 publications

References 6 publications

Modelling of masonry infill walls participation in the seismic behaviour of RC buildings using OpenSees

Modelling of masonry infill walls participation in the seismic behaviour of RC buildings using OpenSees

Constitutive Models for Nonlinear Finite Element Analysis of Masonry Prisms and Infill Walls

In-Plane Behavior of Masonry Infill Wall Considering Out-of-Plane Loading

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