Finite Element Modeling of a Reinforced Concrete Frame with Masonry Infill and Mesh Reinforced Mortar Subjected to Earthquake Loading

Redmond, Laura; Ezzatfar, Pourang; DesRoches, Reginald; Stavridis, Andreas; Özcebe, Güney; Kurç, Özgür

doi:10.1193/081314eqs128m

Cited by 11 publications

(5 citation statements)

References 20 publications

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“…Thus, the possible dowel action of the inclined embedded bar into the column has not been explicitly accounted for in this study. This is deemed acceptable since a previous study indicates that the addition of the dowel connections to the columns results in a minimal strength increase (Redmond et al, 2016).…”

Section: Numerical Modeling Modeling Schemementioning

confidence: 99%

“…Several retrofit solutions have been developed for improving the seismic performance of infill walls including layers of shotcrete (ElGawady et al, 2006), reinforced plaster, Engineering Cementitious composite (Koutromanos and Shing, 2014), or FRP, or the weakening with sliding joints (Bolis et al, 2017) which trade strength for ductility. Some other retrofit methods for RC frames with masonry infills are proposed by Baboux and Jirsa (1990), Pincheira (1993), Teran-Gilmore et al (1996), Ghobarah and Elfath (2001), Perera et al (2004), Sonuvar et al (2004), Papanicolaou et al (2007Papanicolaou et al ( , 2008Papanicolaou et al ( , 2011, Formisano et al (2016Formisano et al ( , 2017, Redmond et al (2016), and Furtado et al (2020a,b,c). These methods can be successful to various degrees, but they all alter the appearance significantly, and that is not always desirable.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Assessment of URM Infilled RC Frames Retrofitted With Near-Surface Mounted Reinforcing Steel Bars

Soti

Barbosa

Stavridis

2020

Front. Built Environ.

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This paper presents a study on a retrofit technique for masonry infilled reinforced concrete (RC) frames. The proposed retrofit technique involves the addition of reinforcing steel bars into epoxy-filled pre-cut grooves on the surface of infill walls. The feasibility of the developed technique is initially investigated experimentally through pull-out tests conducted on near-surface mounted (NSM) reinforcing steel bars. The experimental results are used to augment an existing nonlinear finite element modeling approach used to simulate the response of RC frames with the retrofitted infill panels and to calibrate the numerical models developed. The nonlinear finite element models employ smeared-crack and zero-thickness cohesive-crack interface elements to model the RC members and masonry infills, while nonlinear truss elements are used to model the reinforcing steel bars. The modeling scheme is used to numerically simulate the performance of one- and two-bay infilled RC frames with a variety of reinforcing steel retrofit configurations under lateral loads. The results indicate that the retrofit solution can improve the deformation capacity of existing infilled frames, and its effectiveness depends on the orientation and the distribution of the NSM reinforcement steel bars that are added to the infill panels.

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Section: Numerical Modeling Modeling Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Assessment of URM Infilled RC Frames Retrofitted With Near-Surface Mounted Reinforcing Steel Bars

Soti

Barbosa

Stavridis

2020

Front. Built Environ.

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“…For Central America, there are 14 reports covering several building classes. Reinforced concrete frames and timber structures are commonly found in urban and rural areas of Belize and Panama (Redmond and DesRoches, 2012). For Guatemala, Honduras, and Nicaragua, there are entries covering adobe and masonry construction, which account for a significant fraction of the building stock in these countries and represent one of the most vulnerable types of construction (French, 2007; Lang et al, 2007).…”

Section: Development Of a Regional Exposure Modelmentioning

confidence: 99%

Toward a uniform earthquake loss model across Central America

et al. 2021

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This study presents a probabilistic earthquake loss model for Central America, which is used to evaluate the indicators of the Sendai Framework for Disaster Risk Reduction (SFDRR). The exposure, vulnerability, and hazard components of the model were established using a uniform methodology for all the countries. Earthquake risk is expressed according to three indicators: mortality (A-1), population affected (B-1), and economic losses (C-1). Exposure results indicate that over 9.1 million structures (with an economic value of US$635 billion) are exposed to seismic hazard in the region. The risk results indicate an average annual human loss of 0.7 fatalities per 100,000 inhabitants, an average number of 35 people affected per 100,000 inhabitants, and an average annual economic loss of US$990 million. This represents 0.43% and 0.16% of the regional gross domestic product (GDP) and total replacement value, respectively. Guatemala, Nicaragua, and El Salvador present the highest risk, contributing with 75% of the absolute economic losses and 84% of the average annual fatalities in the region.

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“…The comparison between the FE model and the experimental results found that there is a satisfactory agreement of the initial stiffness, cracking pattern, and failure modes of the RC frame (Filippou et al, 2019). There have been a few previous studies contrasting FEA and experiments (Chiou et al, 1999; Kubalski et al, 2016; Mbewea and Zijl, 2018; Mehrabi and Shing, 1997; Redmond et al, 2016; Sattar and Liel, 2016). Yet, the modeling of a massive building previously tested in shaking tables seems comparatively rare.…”

Section: Introductionmentioning

confidence: 99%

Modeling of non-ductile RC structure under near-fault ground motions: A nonlinear finite element analysis

Hidayat

Hsiao

et al. 2022

Advances in Structural Engineering

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The old existing reinforced concrete (RC) structures in Taiwan are susceptible to severe damage under earthquakes because of the soft-story mechanism. Moreover, the effects of near-fault ground motions often contain a long period of velocity pulse and permanent ground displacement. This study is based on the tri-axial shaking table test conducted at the National Center for Research on Earthquake Engineering in Taiwan and a series of seismic performance evaluations of a non-ductile RC structure in Taiwan. Finite element analysis (FEA) will be conducted to simulate the linear and nonlinear behavior of the seven-story building. This accommodates the damage plasticity model for concrete and the elastic-perfectly plastic model for reinforcement. Comparison of the results between the experimental test and numerical model showed that the similarity of the vibration period has a great influence on the simulation results. The findings showed that the data of acceleration and displacement behavior corresponded with the experimental results in a satisfactory margin. Also, the damage mode is very similar to the shaking table test results. The study found that using FEA can satisfactorily simulate the seismic performance of mid-rise buildings under a near-fault earthquake.

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Finite Element Modeling of a Reinforced Concrete Frame with Masonry Infill and Mesh Reinforced Mortar Subjected to Earthquake Loading

Cited by 11 publications

References 20 publications

Numerical Assessment of URM Infilled RC Frames Retrofitted With Near-Surface Mounted Reinforcing Steel Bars

Numerical Assessment of URM Infilled RC Frames Retrofitted With Near-Surface Mounted Reinforcing Steel Bars

Toward a uniform earthquake loss model across Central America

Modeling of non-ductile RC structure under near-fault ground motions: A nonlinear finite element analysis

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