Abstract
This paper presents an effective, reliable and accurate method for prediction of structuralrnbehaviour of steel frames at elevated temperature. The refined plastic hinge method, which has beenrnused successfully in the second-order elasto-plastic analysis of steel frames at ambient conditions, isrnadopted here to allow for time-independent fire effects. In contrast to the existing rigorous finiternelement programs, the present method uses the advanced analysis technique that provides a simplernand reliable means for practical study of the behaviour of steel frames at elevated temperature by arnlimiting stress model. The present method is validated against other test and numerical results.
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