In the current practice, no special measures are applied for enhancing structural fire safety of steel bridge girders. Further, there is very limited information and research data in the literature on the fire resistance of structural members in bridges. In this paper the fire response of a steel bridge girder under different conditions is evaluated using the finite element computer program ANSYS. In the analysis, the critical factors that influence fire resistance, namely fire scenario, fire insulation and composite action arising from steel‐concrete interaction is accounted for. Results from numerical studies show that the composite action arising from steel girder‐concrete slab interaction significantly enhances the structural performance (and fire resistance) of a steel bridge girder under fire conditions. Other significant factors that influence fire resistance of steel bridge girder are fire insulation and type of fire scenarios.

Title

Journal of Bridge Engineering, ASCE.

Publisher

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Publisher Country

Palestine

Publication Type

Both (Printed and Online)

Volume

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Year

2013

Pages

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