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Buckling Resistance of Partially Encased Columns Embedded on Walls Under Fire from One Side

  • Paulo A. G. Piloto
  • Nathália GonçalesEmail author
  • Ronaldo Rigobello
  • Mário Vaz
  • Rui M. Guedes
  • João S. Baptista
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 1)

Abstract

Partially encased columns (PEC) have better fire resistance when compared to bare steel columns, due to the existence of concrete between the flanges. The aim of this study is to develop a new proposal for the calculation of the buckling strength of partially encased columns, embedded on walls, under fire conditions. This proposal is based on the current calculation method proposed in Annex G of EN 1994-1-2. This study uses the finite element method to calculate the average temperature of seven components. The average temperature is then used to find the buckling resistance of composite columns when submitted to fire from one side. This solution method is carried out using 30 different cross sections. All cross sections are exposed to the standard fire curve ISO834 from one side, assuming the specific fire rating of 30, 60, 90 and 120 min.

Keywords

Partially encased columns Fire resistance Columns embedded on walls Numerical simulation 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Instituto Politécnico de BragançaBragançaPortugal
  2. 2.Universidade Tecnológica Federal do ParanáParanáBrazil
  3. 3.Faculdade de EngenhariaUniversidade do PortoPortoPortugal

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