Análise elastoplástica de estruturas aporticadas com superfícies de interação obtidas por regressão linear múltipla

Vieira, P.C.S.; Silva, William Taylor Matias

doi:10.1016/j.rimni.2012.12.001

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…There are many methods for studying the formation process of plastic hinges that use backward algorithms, such as Backward Euler method, and interaction surfaces. (Silva, 2004) performs first-order elastoplastic analysis of steel structures using a predictor/corrector scheme to maintain sectional efforts over an interaction surface that defines the ultimate limit state of the cross section. Vieira and Silva (2013) use multiple linear regression to treat the resultant efforts of several analyses for obtaining a yielding surface with the combined efforts of a space frame analysis.…”

Section: Introductionmentioning

confidence: 99%

“…(Silva, 2004) performs first-order elastoplastic analysis of steel structures using a predictor/corrector scheme to maintain sectional efforts over an interaction surface that defines the ultimate limit state of the cross section. Vieira and Silva (2013) use multiple linear regression to treat the resultant efforts of several analyses for obtaining a yielding surface with the combined efforts of a space frame analysis. Orbison, McGuire, and Abel (1982) presented 'a model in which material nonlinearity is simulated by the formation of plastic zones of zero length at the ends of the elements.…”

Section: Introductionmentioning

confidence: 99%

“…Patel (2014) and Inel and Ozmen (2006) use the SAP2000 program (Computers & Structures, Inc, 2022). This method is a much simpler process for obtaining plastic hinges and their load factors without the use of reduced stiffness matrix or mesh refinement or plastic hinge length methods as, for example in the processes proposed by Silva (2004), Barham et al (2005) and Inel and Ozmen (2006). Salihovic and Ademovic (2017) worked with 'distributed plasticity models or so-called fiber section models, used to simulate the spread of plasticity along the member length and across the section.…”

Section: Introductionmentioning

confidence: 99%

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Elastoplastic analysis of reinforced concrete space frames using the uniaxial and biaxial bending method

Vieira¹,

Silva²

2022

Acta Sci Technol

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The scope of the work involves reinforced concrete frame structures with variations in structural design conception for columns with biaxial bending or uniaxial bending. The beams are designed with simple bending criteria for singly or doubly reinforced beams, or uniaxial bending. The analysis and design criteria are according to NBR 6118:2014. Structure analysis in elastoplastic regimen with the incremental analysis method is performed to detect plastic hinge formation order, collapse load factor, displacements, and rotation capacity of cross sections with the criteria established in the current building codes. The study evaluates the influence of the defined concepts on the structure’s elastoplastic behavior. The biaxial and uniaxial bending method is presented as an important formulation for obtaining the collapse load factor using the elastic stiffness matrix with modifications. The algorithms presented enable the development of research without the need for expensive commercial software licenses.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Elastoplastic analysis of reinforced concrete space frames using the uniaxial and biaxial bending method

Vieira¹,

Silva²

2022

Acta Sci Technol

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Study of association models for determining the growth of the fleet of motor vehicles in the Metropolitan Region of Cariri, Ceará

Soares

Braga

Almeida

et al. 2021

Int J Innov Educ Res

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The quality of life underlying the modern society can be attributed to several factors, among them, the technological and economic development experienced in recent years. Durable consumer goods are part of this modern society, such as automobiles. However, because most automobiles are powered by the combustion of fossil fuels, the emission of greenhouse gases is a worrisome environmental problem. The objective of this article is to analyze Gross Domestic Product (GDP) data, population and SELIC rate (SELIC stands for Special System of Settlement and Custody) in the period from 2001 to 2020 to evaluate the impact on the number of vehicles in the Cariri Metropolitan Region (RMC), using multivariate models. It was verified that the fleet of the RMC experienced an increase of 561.45% in the last 20 years. Three prediction models were tested and the conclusion was reached that for the next 20 years it is not sustainable to maintain the same growth already experienced, in a linear manner. Instead, the ideal is to adopt a model with growth forecast with a logarithmic function, i. e. with a stationary tendency in the long time. In a society where over 50% of vehicles are more than 10 years old, it is essential that public managers, the private initiative, the academic-scientific environment and society adopt sustainable practices and consider future scenarios to make decisions in order to preserve the environment and to ensure everyone's quality of life.

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Análise elastoplástica de estruturas aporticadas com superfícies de interação obtidas por regressão linear múltipla

Cited by 2 publications

References 3 publications

Elastoplastic analysis of reinforced concrete space frames using the uniaxial and biaxial bending method

Elastoplastic analysis of reinforced concrete space frames using the uniaxial and biaxial bending method

Study of association models for determining the growth of the fleet of motor vehicles in the Metropolitan Region of Cariri, Ceará

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