Computers and Concrete

  • 제17권1호
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  • Pages.141-156
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  • 2016
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Topological optimization procedure considering nonlinear material behavior for reinforced concrete designs

  • Franca, Marcela Bruna Braga (PROPEEs-Programa de Pos-Graduacao em Engenharia de Estruturas da UFMG, Departamento de Engenharia de Estruturas, Universidade Federal de Minas Gerais) ;
  • Greco, Marcelo (PROPEEs-Programa de Pos-Graduacao em Engenharia de Estruturas da UFMG, Departamento de Engenharia de Estruturas, Universidade Federal de Minas Gerais) ;
  • Lanes, Ricardo Morais (PROPEEs-Programa de Pos-Graduacao em Engenharia de Estruturas da UFMG, Departamento de Engenharia de Estruturas, Universidade Federal de Minas Gerais) ;
  • Almeida, Valerio Silva (EPUSP, Departamento de Engenharia de Estruturas e Fundacao da Escola Politecnica, Universidade de Sao Paulo)
  • 투고 : 2014.12.23
  • 심사 : 2016.01.20
  • 발행 : 2016.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

The search for new structural systems capable of associating performance and safety requires deeper knowledge regarding the mechanical behavior of structures subject to different loading conditions. The Strut-and-Tie Model is commonly used to structurally designing some reinforced concrete elements and for the regions where geometrical modifications and stress concentrations are observed, called "regions D". This method allows a better structural behavior representation for strength mechanisms in the concrete structures. Nonetheless, the topological model choice depends on the designer's experience regarding compatibility between internal flux of loads, geometry and boundary/initial conditions. Thus, there is some difficulty in its applications, once the model conception presents some uncertainty. In this context, the present work aims to apply the Strut-and-Tie Model to nonlinear structural elements together with a topological optimization method. The topological optimization method adopted considers the progressive stiffness reduction of finite elements with low stress values. The analyses performed could help the structural designer to better understand structural conceptions, guaranteeing the safety and the reliability in the solution of complex problems involving structural concrete.

키워드

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피인용 문헌

  1. Application of the smooth evolutionary structural optimization method combined with a multi-criteria decision procedure vol.143, 2017, https://doi.org/10.1016/j.engstruct.2017.04.001
  2. Automated layout design of multi-span reinforced concrete beams using charged system search algorithm vol.35, pp.3, 2018, https://doi.org/10.1108/EC-05-2017-0188
  3. Strut-and-tie models for linear and nonlinear behavior of concrete based on topological evolutionary structure optimization (ESO) vol.12, pp.1, 2016, https://doi.org/10.1590/s1983-41952019000100008
  4. Minimum cost design of RCMRFs based on consistent approximation method vol.26, pp.1, 2020, https://doi.org/10.12989/cac.2020.26.1.001
  5. New explicit formulas for optimum design of concrete gravity dams vol.27, pp.2, 2016, https://doi.org/10.12989/cac.2021.27.2.143