Assessment of the seismic performance of old riveted steel frame–RC wall buildings

Gebreyohaness, Adane; Clifton, G. Charles; Butterworth, John

doi:10.1016/j.jcsr.2012.02.009

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…The composite element capability available in Ansys [1,4,5,7] requires Finite Element modeling of the only host elements (Matrix). But additional information about the implants such a material property and the volume fraction of the implant material along the host element direction needs to be specified in advance.…”

Section: Methods Detailsmentioning

confidence: 99%

Implant and submodeling techniques for detailed finite element study of inserts in composites

Gattineni

Nathi

2019

MethodsX

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Section: Methods Detailsmentioning

confidence: 99%

Implant and submodeling techniques for detailed finite element study of inserts in composites

Gattineni

Nathi

2019

MethodsX

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“…In other words, the damage is introduced in the definition of the modulus of elasticity and the plastic deformations of traction and compression, which represent the inelastic behavior of concrete. According to Ould Ouali et al (2021), Kezmane et al (2016), Gebreyohaness et al (2012), Genikomsou and Polak (2016) and Zhang et al (2020), C3D8R elements with reduced integration are efficient for concrete modeling. Therefore, the elements used for the discretization of the concrete in this study are the elements C3D8R.…”

Section: Modelingmentioning

confidence: 99%

Modeling the contribution of tire-reclaimed and industrial steels fibers on the strength and ductility of RC-frames structures

Talbi

Nekmouche²,

Ouali

et al. 2022

WJE

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Purpose This paper aims to model the performances of frames structures by comparing the predictions of ordinary control concrete (CC) and concretes reinforced by fibers. Two types of steel fibers were used in this work, industrial steel fibers (ISF) and tire-reclaimed fibers obtained by cutting virgin steel tire-cord to 50 mm, noticed virgin steel fibers (VSF). In total, 3% of VSF are used. The results obtained in this paper clearly show the contribution of fibers in improving the global and local behavior of the frames structures. VSF gives the same or better overall behavior as the use of industrial fibers for the same percentage of fibers, with the advantage that VSF contributes to the protection of the environment and limit the wastage of steel. Design/methodology/approach This work was carried out using the commercial finite element code Abaqus/Explicit. The behavior of the different concretes used in this study was modeled by the concrete damage plasticity (CDP) constitutive law. The methodology adopted to complete this work consisted in identifying, by calibration of the available experimental results with the numerical predictions, the parameters of the corresponding CDP model for each of the concretes used in this work. To this end, the authors have successively identified the CDP parameters for the CC-V (control concrete used by Vecchio and Emara, 1992) used in frame structure (R + 1). Subsequently, the CDP parameters of the CC-T (control concrete used by Tlemat, 2004), the CVSF (concrete with virgin steel fibers) and the CISF-1 (concrete with industrial steel fibers type 1, ISF-1) are identified using the experimental results of beams under bending tests. Once the model parameters were determined for each concrete, the authors conducted a series of simulations to show the benefit of introducing claimed and industrial fibers in frame structure (R + 1) and (R + 2). This approach recommends the use of concrete reinforced with steel fibers, mainly 6% by mass of VSF and ISF-1, in place of ordinary concrete in new construction to increase the resistance of structures and contribute, if applicable, to the protection of the environment. Findings The main findings of this study can be summarized by: the strength and ductility of the frames structures made of concrete fiber are significantly increased. The use of tire-reclaimed steel fibers (VSF) gives the same or better overall behavior as the use of industrial fibers. In addition to their good mechanical contribution, the tire-reclaimed fibers contribute to the protection of the environment and limit the wastage of steel. The use of fibers reduces the cracking zones in concrete fiber frames structures. The usefulness of distinguishing the interstory displacement limits set by codes, in particular, uniform building code (UBC-97), for ordinary concretes and concrete reinforced with fibers is addressed. Originality/value The contribution of tire-reclaimed and industrial fibers on the strength and ductility of reinforced concrete-frames structures is addressed. The use of tire-reclaimed steel fibers gives the same or better overall behavior as the use of industrial fibers, the tire-reclaimed fibers having the advantage of contributing to the protection of the environment and limiting the wastage of steel. The paper also points to the usefulness of distinguishing the interstory displacement limits set by codes, in particular UBC-97, for ordinary concrete and concrete reinforced with fibers, in accordance to the predictions of the capacity curves.

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“…This seems to be often due to the lack of concern of original builders with extreme events and the lack of proper action from our societies with respect to risk management. Still, the seismic safety assessment of the built cultural heritage constitutes a particular challenging field of study, mainly due to the uncertainties involved [4], [5], [6], [7], [8]. Therefore, the ICOMOS recommendations not only suggest the integration of different diagnostic approaches, in order to conclude about the safety and the need of interventions, but also stress the relevance of the experts' opinion and personal judgment in the process.…”

Section: Introductionmentioning

confidence: 99%

Seismic assessment of metallic neo-gothic church: Deterioration and safety of early structural design

et al. 2022

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Assessment of the seismic performance of old riveted steel frame–RC wall buildings

Cited by 6 publications

References 3 publications

Implant and submodeling techniques for detailed finite element study of inserts in composites

Implant and submodeling techniques for detailed finite element study of inserts in composites

Modeling the contribution of tire-reclaimed and industrial steels fibers on the strength and ductility of RC-frames structures

Seismic assessment of metallic neo-gothic church: Deterioration and safety of early structural design

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