Elastoplastic model for steel buckling-restrained braces

Zona, Alessandro; Dall’Asta, Andrea

doi:10.1016/j.jcsr.2011.07.017

Cited by 110 publications

(72 citation statements)

References 16 publications

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“…For higher values of scale factors, the building is however able to sustain the seismic action, but some damage is accumulated also in the gravity structure. Supplemental studies are currently ongoing to evaluate the sensitivity of the building response to the SSCD mechanical characteristics and to compare the efficacy of the innovative damper adopted with respect to the one of a "classical" solution, such as a buckling restrained brace (BRB), not characterized by the presence of a re-centering force, but with an increased energy dissipation capacity [16] [17].…”

Section: Discussionmentioning

confidence: 99%

Seismic Retrofit of an Industrial Structure Through an Innovative Self-Centering Hysteretic Damper: Modelling, Analysis and Optimization.

Morelli¹,

Piscini²,

Salvatore³

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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Abstract. Recent earthquakes, as the one that hit Fukushima in Japan in 2011 or the one that produced extensive damage in Turkish petrochemical facilities during the Kocaeli earthquake of 1999 or, more recently, the seismic events in May 2012 in Emilia (Italy), highlighted the increasing need of providing adequate protection to industrial installations. Industrial facilities often store a large amount of hazardous material and, in case of seismic event, there is a high probability that accidental scenarios as fire, explosion, toxic or radioactive dispersion may occur. In these cases, the ensuing disaster certainly harms the people working in the installation and it may endanger the population living in the neighborhood or in the urban area where the industrial installation is located. The consequences of such accidental scenarios can be disastrous in terms of casualties, economic losses and environmental damage. Within this work, the seismic behavior of an industrial structure is studied through several Incremental Dynamic Analyses, IDA, and particular attention is given to the selection of suitable performance criteria and the modelling of non linear phenomena (II order effects, buckling, mechanical non-linearity, etc.). The seismic behavior is then enhanced applying to the structure an innovative typology of self-centering hysteretic damper, whose mechanical characteristics are optimized through the execution of IDAs on the retrofitted structures. A final comparison between the seismic behavior of the original structure and of the retrofitted one highlights the advantages of the innovative self-centering hysteretic dampers. 5834

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Section: Discussionmentioning

confidence: 99%

Seismic Retrofit of an Industrial Structure Through an Innovative Self-Centering Hysteretic Damper: Modelling, Analysis and Optimization.

Morelli¹,

Piscini²,

Salvatore³

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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show abstract

“…The post-yield stiffness ratio k h is fixed assuming that the axial force of the BRB for a ductility demand of 15 is 1.75 times the yielding axial force N y . This condition for the evaluation of k h is recommended in [41] to include also the effects of isotropic hardening [53,54] and is based on the results of the experimental tests by Merritt et al [55] and Newell et al [56].…”

Section: Modelling Of the Steel Structuresmentioning

confidence: 99%

Predicting displacement demand of multi-storey asymmetric buildings by nonlinear static analysis and corrective eccentricities

Bosco

Ferrara

Ghersi

et al. 2015

Engineering Structures

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“…These models derive from the assembly of different types of finite elements employed to describe each system component. The dissipative link was modelled on the basis of the model proposed for steel links used in eccentrically braced frames in [8] based on the constitutive model presented in [9], modified according to the static scheme of the considered steel links and to improve the computational efficiency. In particular, the finite element model of the steel link is composed by four elements connected in series (EL0, EL1, EL2 and ES1).…”

Section: Modelling Of Hcsw Systemsmentioning

confidence: 99%