In a steel framed building, the connections support the floor beams and provide overall stability to the structure; and in a fire scenario, the performance of the connections plays a crucial role on the response of the structure as a whole. Furthermore, a recent survey has shown that where partial floor collapse ensued in steel buildings under fire, that collapse always originated in the steel connections. If our profession is to move towards more reliable prediction and safer designs of steel structures under fire, we must develop a better understanding of the connection behavior under fire. Our group developed simple tools and design guidelines that enable practicing engineers to predict the thermally-imposed demands and capacity of common steel connections.

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