Page Comparison

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Notation

A_g = gross area of concrete section, in²
f_c^'₌ specified compressive strength of concrete, psi
f_y = specified yield strength for nonprestressed reinforcement, psi
M_n = nominal flexural strength at section, in.-lb
M_nb = nominal flexural strength of beam including slab where in tension, framing into joint, in.-lb
M_nc = nominal flexural strength of column framing into joint, calculated for factored axial force, consistent with the direction of lateral forces considered, resulting in lowest flexural strength in.-lb
M_pr = probable flexural strength of members, with or without axial load, determined using the properties of the member at joint faces assuming a tensile stress in the longitudinal bars of at leasts 1.25f_y and a strength reduction factor ϕ of 1.0, in.-lb
P_u= factored axial force; to be taken as positive for compression and negative for tension, lb
ϕ = strength reduction factor

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• Connections where the column is discontinuous above the connection.

• Column factored axial compressive force, P_u under load combination including earthquake effect, E are less than A_gf_c^' /10.

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