Advertisement

Model Error for Calculating the Structural Reliability of Dowel Connections in Fire Situations

  • Auro Cândido Marcolan JúniorEmail author
  • Poliana Dias de Moraes
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 1)

Abstract

In fire situation, the thermomechanical evaluation of dowel connections can be performed by analytical models, which may present errors due to uncertainties in the representation of physical behavior through an idealized mathematical model. The objective of this paper is to evaluate and quantify the model error for the calculation of structural reliability in fire situation of wood-steel-wood aligned multiple dowels connections subjected to shear. The analytical model is based on the reduced cross section method. The physical properties and the geometrical configurations come from experimental research by other authors. The results indicate that the implemented model presented unfavorable safety results. The wood embedment failure mode, indicated by the model, is consistent with the failure mode presented in the experimental researches. The model for wood-steel-wood dowel connections, based on the reduced cross section method, can be used in a structural reliability analysis, considering that the model error is a random variable. The results indicate that the development and the evaluation of analytical models that better represent the failure time are necessary.

Keywords

Model error Dowel connections Timber structures Fire 

Notes

Acknowledgment

The authors thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico – Brasil (CNPq) for sponsoring this research through grants number 148970/2016-8. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001.

References

  1. 1.
    Buchanan, A.B., Abu, A.K.: Structural Design for Fire Safety, 2nd edn. Wiley, Chichester (2017)Google Scholar
  2. 2.
    Erchinger, C., Frangi, A., Fontana, M.: Fire design of steel-to-timber dowelled connections. Eng. Struct. 32, 580–589 (2010)CrossRefGoogle Scholar
  3. 3.
    Cachim, P., Franssen, J.: Numerical modelling of timber connections under fire loading using a component model. Fire Saf. J. 44, 840–853 (2009)CrossRefGoogle Scholar
  4. 4.
    Audebert, M., Dhima, D., Taazount, M., Bouchaïr, A.: Numerical investigations on the thermo-mechanical behavior of steel-to-timber joints exposed to fire. Eng. Struct. 33, 3257–3268 (2011)CrossRefGoogle Scholar
  5. 5.
    EN 1995-1-2: 2004: Design of timber structures – Part 1-2: General – Structural fire design. European Union (2004)Google Scholar
  6. 6.
    Peng, L.: Performance of heavy timber connections in fire. Doctoral Dissertation. Carleton University, Canada (2010)Google Scholar
  7. 7.
    Köhler, J.: Reliability of timber structures. Doctoral Dissertation. Swiss Federal Institute of Technology, Switzerland (2007)Google Scholar
  8. 8.
    Jockwer, R., Fink, G., Köhler, J.: Assessment of the failure behaviour and reliability of timber connections with multiple dowel-type fasteners. Eng. Struct. 172, 76–84 (2018)CrossRefGoogle Scholar
  9. 9.
    Melchers, R.E., Beck, A.T.: Structural Reliability Analysis and Prediction, 3rd edn. Wiley, Hoboken (2018)Google Scholar
  10. 10.
    Marcolan Jr., A.C., Moraes, P.D.: Erro de Modelo para o cálculo da Confiabilidade Estrutural de Ligações Parafusadas de Madeira em Situação de Incêndio. 5º Congresso Ibero-Latino-Americano em Segurança Contra Incêndio, Porto, pp. 553–562 (2019)Google Scholar
  11. 11.
    Laplanche, K.: Etude du comportement au feu des assemblages de structures bois: approche expérimentale et modélisation. Doctoral Dissertation. Université Blaise Pascal, France (2006)Google Scholar
  12. 12.
    Chuo, T.C.B.: Fire performance of connections in laminated veneer lumber. Doctoral Dissertation. University of Canterbury, New Zealand (2007)Google Scholar
  13. 13.
    Johansen, K.W.: Theory of Timber Connections. Int. Assoc. Bridg. Struct. Eng. 9, 249–262 (1949)Google Scholar
  14. 14.
    EN 1995-1-1: 2004: Design of timber structures – Part 1-1: General – Common rules and rules for buildings. European Union (2004)Google Scholar
  15. 15.
    Thelandersson, S., Larsen, H.J.: Timber Engineering, 1st edn. Wiley, Chichester (2003)Google Scholar
  16. 16.
    Beck, A.T.: Confiabilidade e segurança das estruturas, 1st edn. Elsevier, Rio de Janeiro (2019)Google Scholar
  17. 17.
    ISO 834: Fire Resistance Testing. International Standards Organization (2000)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Auro Cândido Marcolan Júnior
    • 1
    Email author
  • Poliana Dias de Moraes
    • 1
  1. 1.Universidade Federal de Santa CatarinaFlorianópolisBrazil

Personalised recommendations