Verification of Proposed Equations for the Effective Moment of Inertia of Steel Joist - Concrete Slab Systems

3.1 Overview The proposed equations in the AISC Guide (Murray et al. 1997) for the effective moment of inertia of a steel joist-concrete slab system, Equations (1.7) and (1.8), are based on research from Kitterman (1994) and Band (1996), and a theoretical derivation. The modeling techniques developed in Chapter 2 were used to verify the validity of Equation (1.7) as described in the following sections. Equation (1.7) is used to estimate the effective moment of inertia, Ieff, when computing the fundamental frequency of a composite joist or joist girder.