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Erschienen in: Fire Technology 4/2011

01.10.2011

Predicting the Fire Resistance of Wood–Steel–Wood Timber Connections

verfasst von: Lei Peng, George Hadjisophocleus, Jim Mehaffey, Mohammad Mohammad

Erschienen in: Fire Technology | Ausgabe 4/2011

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Abstract

This paper presents an investigation on the fire performance of wood–steel–wood timber connections with slotted-in steel plates. In the first part, a three-dimensional thermal model was employed that uses the finite element method to analyze heat transfer within timber connections exposed to the standard fire. The temperature-related properties were obtained from the literature and imported into the thermal model. A validation of the proposed thermal model was achieved by comparing predicted temperatures with experimental results. In the next phase, a reduction in the embedding strength method was adopted to estimate the load-carrying capacity of connections in fire. Based on the temperature profiles within the connection calculated by the thermal model, the reduction of the embedding strength was determined and used to calculate the load capacity at elevated temperatures. Furthermore, a formula was proposed to evaluate the fire resistance rating of timber connections and compared with the results of fire resistance tests. The parameters considered included the load level, fastener diameter and wood member thickness.

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Metadaten
Titel
Predicting the Fire Resistance of Wood–Steel–Wood Timber Connections
verfasst von
Lei Peng
George Hadjisophocleus
Jim Mehaffey
Mohammad Mohammad
Publikationsdatum
01.10.2011
Verlag
Springer US
Erschienen in
Fire Technology / Ausgabe 4/2011
Print ISSN: 0015-2684
Elektronische ISSN: 1572-8099
DOI
https://doi.org/10.1007/s10694-009-0118-4

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