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Fire resistance of unprotected steel beams with moment connections

โœ Scribed by T.C.H. Liu

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
548 KB
Volume
51
Category
Article
ISSN
0143-974X

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โœฆ Synopsis

The structural behaviour in fire of simple sub-structured frames consisting of unprotected steel I-beams and columns, which connect through end-plate bolted connection, is studied using finite element modelling. Extended and flush end-plate connections are examined. These connections are considered as semi-rigid to rigid under ambient conditions. Various parameters which affect the behaviour of end-plate type connections were examined, such as bolt size, number of bolts and end-plate thickness. It was found that, no matter how large the moment capacity the connection can have at ambient condition, the part that may be able to enhance the load capacity of the beam at fire limit state is at most two-thirds of the moment capacity of the beam.

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