A beam element allowing multiple slope discontinuities for RC structures: An application

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3 Citazioni (Scopus)

Abstract

A beam/column element allowing the formation of multiple plastic hinges in columns or beams of a reinforced concrete (RC) framed structure is used in this work to show, through an application, its advantages with respect to conventional lumped plasticity models. Slope discontinuities can be located at any position of an Euler-Bernoulli beam span and not at the two extremes only. The model is in fact written in the framework of a modified lumped plasticity theory, and respectful of a thermodynamic approach. Flow rules and state equations are derived invoking the Theorem of maximum dissipation and using a Bresler's type activation domain. The beam element has already been implemented in a researchoriented code to run nonlinear analyses on RC frames. The discretized loading process is separated, at each step, in two phases: a predictor and a corrector phase. Numerical examples highlight how the new finite element permits to run nonlinear analyses avoiding a mesh refinement.
Lingua originaleEnglish
pagine (da-a)131-150
Numero di pagine20
RivistaIngegneria Sismica
Volume35
Stato di pubblicazionePublished - 2018

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concrete structure
reinforced concrete
Concrete construction
Plasticity
plasticity
Reinforced concrete
discontinuity
Hinges
dissipation
thermodynamics
plastic
Chemical activation
Thermodynamics
Plastics
code

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Safety, Risk, Reliability and Quality
  • Geotechnical Engineering and Engineering Geology

Cita questo

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title = "A beam element allowing multiple slope discontinuities for RC structures: An application",
abstract = "A beam/column element allowing the formation of multiple plastic hinges in columns or beams of a reinforced concrete (RC) framed structure is used in this work to show, through an application, its advantages with respect to conventional lumped plasticity models. Slope discontinuities can be located at any position of an Euler-Bernoulli beam span and not at the two extremes only. The model is in fact written in the framework of a modified lumped plasticity theory, and respectful of a thermodynamic approach. Flow rules and state equations are derived invoking the Theorem of maximum dissipation and using a Bresler's type activation domain. The beam element has already been implemented in a researchoriented code to run nonlinear analyses on RC frames. The discretized loading process is separated, at each step, in two phases: a predictor and a corrector phase. Numerical examples highlight how the new finite element permits to run nonlinear analyses avoiding a mesh refinement.",
author = "Giuseppe Giambanco and Antonino Spada",
year = "2018",
language = "English",
volume = "35",
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journal = "Ingegneria Sismica",
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TY - JOUR

T1 - A beam element allowing multiple slope discontinuities for RC structures: An application

AU - Giambanco, Giuseppe

AU - Spada, Antonino

PY - 2018

Y1 - 2018

N2 - A beam/column element allowing the formation of multiple plastic hinges in columns or beams of a reinforced concrete (RC) framed structure is used in this work to show, through an application, its advantages with respect to conventional lumped plasticity models. Slope discontinuities can be located at any position of an Euler-Bernoulli beam span and not at the two extremes only. The model is in fact written in the framework of a modified lumped plasticity theory, and respectful of a thermodynamic approach. Flow rules and state equations are derived invoking the Theorem of maximum dissipation and using a Bresler's type activation domain. The beam element has already been implemented in a researchoriented code to run nonlinear analyses on RC frames. The discretized loading process is separated, at each step, in two phases: a predictor and a corrector phase. Numerical examples highlight how the new finite element permits to run nonlinear analyses avoiding a mesh refinement.

AB - A beam/column element allowing the formation of multiple plastic hinges in columns or beams of a reinforced concrete (RC) framed structure is used in this work to show, through an application, its advantages with respect to conventional lumped plasticity models. Slope discontinuities can be located at any position of an Euler-Bernoulli beam span and not at the two extremes only. The model is in fact written in the framework of a modified lumped plasticity theory, and respectful of a thermodynamic approach. Flow rules and state equations are derived invoking the Theorem of maximum dissipation and using a Bresler's type activation domain. The beam element has already been implemented in a researchoriented code to run nonlinear analyses on RC frames. The discretized loading process is separated, at each step, in two phases: a predictor and a corrector phase. Numerical examples highlight how the new finite element permits to run nonlinear analyses avoiding a mesh refinement.

UR - http://hdl.handle.net/10447/343923

M3 - Article

VL - 35

SP - 131

EP - 150

JO - Ingegneria Sismica

JF - Ingegneria Sismica

SN - 0393-1420

ER -