Design of stud connections in steel – concrete composite structures in fire situation

Authors

  • Rafael Larrua Universidad de Camaguey (Cuba)
  • Yisel Larrúa Universidad de Camaguey (Cuba)
  • Valdir P. Silva Universidad de Sao Paulo (Brasil)

DOI:

https://doi.org/10.4067/S0718-50732015000100004

Keywords:

thermal analysis, composite structures, push-out test, stud connections, fire

Abstract

This work studies the factors that impact on the fire resistance of stud connections in steel–concrete composite structures, considering beams with solid slab. The design of the experiment, the thermal modeling of the push-out specimens, with or without fire protection material, and the analysis of the significance of the different parameters in the temperature relationships are carried out. Finally, the temperatures that should be considered in the concrete and the connector, expressed as percentages of the steel flange temperature, are proposed in order to determine the reduction factors of the connection resistance in fire situation. The results demonstrate that the percentages proposed in EN 1994-1-2 (2005) to determine the temperature in the concrete and the connector, based on the temperature in the steel flange, are not valid for all design situations within the scope of the code.

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Author Biographies

Rafael Larrua, Universidad de Camaguey (Cuba)

Doctor en Ciencias Tecnicas, Postdoctorado en la Universidad Politecnica de Cataluna y la Universidad de Sao Paulo, Profesor Titular, Director del Centro de Estudio de Estruturas y Sistemas Constructivos (CENDES) de la Universidad de Camaguey, Cuba

Yisel Larrúa, Universidad de Camaguey (Cuba)

Ingeniera Civil. Master en Conservacion del Patrimonio. Investigadora del Centro de Estudio de Estructuras y Sistemas Constructivos (CENDES) de la Universidad de Camaguey, Cuba

Valdir P. Silva, Universidad de Sao Paulo (Brasil)

Profesor Doctor de la Escuela Politecnica  de la Universidad de Sao Paulo (USP), con postdoctorado en la Universidad de Coimbra, revisor de 16 revistas cientificas, lider del Grupo de Investigaciones en Seguridad Estructural contra incendios de la USP.

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Published

2015-04-13

How to Cite

Larrua, R., Larrúa, Y., & Silva, V. P. (2015). Design of stud connections in steel – concrete composite structures in fire situation. Revista Ingeniería De Construcción, 30(1), 39–52. https://doi.org/10.4067/S0718-50732015000100004

Issue

Section

Original Research