Co-rotational element of beam-column with springs for analysis of structures with semi-rigid connection

Authors

  • Luiz Antonio Farani de Souza Universidade Tecnológica Federal do Paraná - UTFPR, Brasil
  • Everton Luis Consoni da Silva Universidade Estadual de Maringá - UEM, Brasil

DOI:

https://doi.org/10.18540/jcecvl8iss6pp14684-01e

Keywords:

Semi-rigid connection, Orthogonal Residue, Potra-Pták, Co-rotational formulation, Hybrid element

Abstract

In most steel structural designs, beam-to-column connections are considered either perfectly flexible or fully rigid. This assumption results in an inaccurate estimate of the mechanical behavior of frames. The formulation of a beam-column co-rotational finite element with zero-length springs at its ends is presented. This element is used to discretize two structural systems with semi-rigid connection and geometric nonlinear behavior. The system of nonlinear equations, which describes the structural problem, is solved with the incremental-iterative procedure of Potra-Pták associated with the Orthogonal Residue following-path. Computer simulations are performed with the open-source program Scilab. The numerical results obtained reveal that the alteration of the connection between structural elements from rigid to semi-rigid increases the flexibility of the structure and decreases its capacity to resist applied forces.

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Published

2022-09-15

How to Cite

Souza, L. A. F. de, & Silva, E. L. C. da. (2022). Co-rotational element of beam-column with springs for analysis of structures with semi-rigid connection. The Journal of Engineering and Exact Sciences, 8(6), 14684–01e. https://doi.org/10.18540/jcecvl8iss6pp14684-01e

Issue

Section

General Articles