A simplified component-based model has been developed to predict the behaviour of bare-steel and composite flexible end-plate connections at elevated temperatures. In these models the connection elements are treated as springs which have known stiffnesses. The overall connection response may be obtained by assembling the stiffnesses of individual elements in the tension and compression zones. The elevated temperature response of the connection may be predicted by allocating individual temperature-stiffness profile to each element at a given bolt row, allowing the modelling of any form of temperature distribution based on test data. Only those parameters representing the stiffness and strength are degraded with increasing temperatures. Comparison of the model with existing test data generated good results especially in the elastic zone. Also, the predicted degradation of the connection stiffness and capacity compares well with the experimental results.
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