Numerical modeling of the firestructure behavior of steel beam-to-column connections

Chen Hung Lee, Yaw Jeng Chiou, Hsin Yang Chung, Chien Jung Chen

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


This study proposes a numerical model to investigate the behavior of steel beam-to-column connections in fires. Two strategies have been employed to transfer thermal results from a fire simulation to structural analysis. A full scale fire test was performed on a steel beam-to-column connection following the ISO 834 standard fire curve; it was simulated to verify the proposed methods. The wall temperatures obtained by FDS were used as an interface for fire exposure on the surface of the structure. The numerical results are in agreement with the experimental data. In addition, the size effect of the furnace and a sensitivity analysis on insulation materials had been studied. Two reduced beam sections were analyzed and compared with the simulation results of an unreduced beam section. Both sections were able to withstand the severity of the blaze with the runway phenomenon occurred after a similar period of time for each beam.

Original languageEnglish
Pages (from-to)1386-1400
Number of pages15
JournalJournal of Constructional Steel Research
Issue number9
Publication statusPublished - 2011 Sept

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Metals and Alloys


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