Finite element modelling and investigation of the behaviour of elastic infilled frames under monotonic loading

Doudoumis, Ioannis

doi:10.1016/j.engstruct.2006.07.011

Cited by 30 publications

(25 citation statements)

References 16 publications

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“…In engineering practice, infill walls are usually modelled as a combination of diagonal struts following a macro-modelling approach [8][9][10] without significant loss of accuracy. However, more complex models, such as finite element models with a micromodelling approach, with the use of constitutive relations available in the literature should be implemented to account for the non-linearity of the response of infilled RC frames, the accurate detection of possible failure modes and the verification of simplified models considering the effects of several critical factors, including the width-to-the-height of the infilled frame ratio and friction mechanism at the interface between the frame and the infill [11][12][13][14][15][16][17][18]. In such models, openings can also be considered, the location and dimensions of which significantly affect the stiffness and the strength characteristics of the infills [13,19,20].…”

Section: Introductionmentioning

confidence: 99%

FRP Strengthened Brick-Infilled RC Frames: An Approach for their Proper Consideration in Design

Spyrakos¹,

Maniatakis

Smyrou³

et al. 2012

TOBCTJ

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A considerable number of existing buildings in seismic prone countries has been constructed either based on earlier concepts for seismic design or without applying seismic provisions. As a consequence, their seismic upgrade is a matter of concern. In urban environments, these structures usually consist of reinforced concrete (RC) frames with brick infill walls. Their strengthening with traditional methodologies, such as concrete jackets and shear wall construction, often results in operation interruption and high cost. The present research examines the complex response of RC frames and brick infill walls strengthened with Fibre Reinforced Polymers (FRP), a recently proposed retrofit scheme that becomes attractive because of its low cost and ease of implementation. Instead of the commonly used pair of compression struts that models the infill wall, a multiple strut masonry panel element model with advanced constitutive laws is applied for the representation of the nonlinear response of the infill wall, while a tension tie is used to consider the FRP sheets contribution on the response. The parameters of the wall and the FRP elements that are used in the numerical model are calibrated against experimental results available in the literature for two-storey, one-bay reinforced concrete frames subjected to cyclic loading. The effectiveness of this innovative technique is presented considering the response of the masonry infilled RC frame with and without retrofit. By comparison of the results, conclusions are drawn concerning design procedures.

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Section: Introductionmentioning

confidence: 99%

FRP Strengthened Brick-Infilled RC Frames: An Approach for their Proper Consideration in Design

Spyrakos¹,

Maniatakis

Smyrou³

et al. 2012

TOBCTJ

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“…The laws for the materials may be assumed non-linear or linearly elastic. In case of an elastic analysis the number of parameters involved is considerably reduced, thus rendering easier a qualitative estimation of the influence of modeling simplifications and of the different parameters that affect the accuracy of the analytical results (Doudoumis, 2007). Mallick and Severn (1967) first applied finite element modeling on infilled frames for the calculation of the elastic stiffness of one-bay single-story infilled frames, taking also into account the separation and slip between frame and infill.…”

Section: Finite Element Models: Micro-modeling Of Infillmentioning

confidence: 99%

“…Typical examples are the irregular distribution of infills (Negro and Taylor, 1996;Negro and Colombo, 1997) and the case of partial-height infill walls that do not extend to the full height of the column ( Fig. 1 and 2) which may result in columns experiencing non-ductile shear failure rather than responding in a predominantly flexural manner (Moretti and Tassios, 2006;2007;Yuen and Kuang, 2015).…”

Section: Introductionmentioning

confidence: 99%

Seismic Design of Masonry and Reinforced Concrete Infilled Frames: A Comprehensive Overview

Moretti¹

2015

American Journal of Engineering and Applied Sciences

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Despite the extensive research on the seismic behavior of infilled frames since 1960's, there is no general consensus towards a unified approach. Purpose of this study is to review the existing analytical and experimental research, as well as code provisions, on masonry and on reinforced concrete infilled frames. The basic characteristics of infilled frames and how these affect seismic performance are summed up. Different approaches of the equivalent strut, broadly used for modeling of the infilled frames, are thoroughly discussed.

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“…The study has shown good agreement with the experimental results, especially in terms of failure load and the strut width. Doudoumis (2007) [5] studied the importance of contact condition between the infill and frame members on a single storey Finite element model. It was reported that the *Address correspondence to this author at the School of Urban Development, Queensland University of Technology, GPO Box 2434,2 George Street, QLD 4001, Australia; E-mail: jigme.dori@qut.edu.au interface condition, friction coefficient, size of the mesh, relative stiffness of beam to column, relative size of infill wall have significant influence on the response of infilled frame, while the effect of orthotropy of infill material was insignificant.…”

Section: Introductionmentioning

confidence: 99%

Modelling and Analysis of Infilled Frame Structures Under Seismic Loads

Dorji¹,

Thambiratnam²

2009

TOBCTJ

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Abstract:In-filled frame structures are commonly used in buildings, even in those located in seismically active regions. Precent codes unfortunately, do not have adequate guidance for treating the modelling, analysis and design of in-filled frame structures. This paper addresses this need and first develops an appropriate technique for modelling the infill-frame interface and then uses it to study the seismic response of in-filled frame structures. Finite element time history analyses under different seismic records have been carried out and the influence of infill strength, openings and soft-storey phenomenon are investigated. Results in terms of tip deflection, fundamental period, inter-storey drift ratio and stresses are presented and they will be useful in the seismic design of in-filled frame structures.

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Finite element modelling and investigation of the behaviour of elastic infilled frames under monotonic loading

Cited by 30 publications

References 16 publications

FRP Strengthened Brick-Infilled RC Frames: An Approach for their Proper Consideration in Design

FRP Strengthened Brick-Infilled RC Frames: An Approach for their Proper Consideration in Design

Seismic Design of Masonry and Reinforced Concrete Infilled Frames: A Comprehensive Overview

Modelling and Analysis of Infilled Frame Structures Under Seismic Loads

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