Abstract
This paper presents the third part of the results of a study devoted to the analysis of heavy steel bracing connection, and to the effects of those connections on the behavior of braced frames subjected to static loads. The paper presents initially a model compatible with standard frame analysis computer programs and capable of capturing the basic behavior of bracing connections. This is accomplished by representing the bracing connection by an equivalent three-member truss whose behavior can simulate relevant stiffness and strength of the prototype connection. This equivalent truss model is applied to the analysis of a single-story braced frame under service loads, and the sensitivity of the frame to different bracing connection stiffnesses, beam-to-column connection rotational rigidities and brace eccentricities is explored. Lastly, a more complex eight-story braced structure is analyzed under factored loads by yielding of connections and members to demonstrate the inelastic capabilities of the approach.
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