The influence of connection stiffness on the behaviour of steel beams in fire

✍ Scribed by J.A. El-Rimawi; I.W. Burgess; R.J. Plank

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 720 KB
• Volume: 43
• Category: Article
• ISSN: 0143-974X
• DOI: 10.1016/s0143-974x(97)00047-3

✦ Synopsis

Although steel beams are often designed as simply supported, practical connection details generally afford significant rotational stiffness. When exposed to fire, this can have the effect of improving the survival of the beam. The analytical approach described provides a means of studying this. Indicative studies using this method are included to illustrate the influence of certain key parameters, including the connection type, its temperature relative to the rest of the beam, and the proportions of the beam itself The results are compared with current simplified design approaches. The studies are based on currently available test data for a limited range of connection details, and a simple means of estimating high temperature connection characteristics for more general conditions is suggested.