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The net area removes the area of bolt holes from the gross area.
#Base plate oversized holes aisc 14th edition full
The gross area is the full cross-sectional area (ignoring the bolt holes). This section allows the "ratio of the area of the connected element to the gross area" as a reasonable lower bound value.
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The program also checks the shear lag lower bound factor per the Commentary to section D3 on page 16.1-284. The tensile rupture capacity is calculated per the AISC Specification J4.1.įor the braces in vertical brace connections a shear lag factor is included per the AISC 360-10 specification, Section D3. This effective area is taken as the minimum of the net area, or 85% of the gross area. Tensile yielding occurs over the gross cross section of elements in tension such as flange plates in a moment connection or even the beam itself. The tensile yielding capacity is calculated per the AISC Specification J4.1. The shear rupture capacity is calculated per the AISC 360-10 specification, section J4.2.
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Shear rupture occurs over the net cross section of elements in shear, such as shear tabs. The capacity is calculated per equation G2-1 and the Cv values are calculated using G2-2, G2-3, G2-4 and G2-5. In this case the shear yielding capacity is calculated per the AISC 360-10 specification, section G2.1. The shear yielding capacity is calculated per the AISC 360-10 specification, section J4.2.Ī special case occurs when considering the beam web shear yielding. Shear yielding occurs over the gross cross section of elements in shear, such as shear tabs. These material checks are common to many different connection types.