How does ideCAD control Brace Requirements for Ordinary Concentrically Braced Frames according to AISC 341-16?
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Symbols
E = modulus of elasticity of steel, ksi (MPa)
Lc = effective length of brace = KL, in. (mm)
K = effective length factor
r = governing radius of gyration, in. (mm)
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Braces must have a slenderness ratio not to exceed the limit value is determined according to eq Eq. F1-1.
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Slenderness ratio of braces are
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The slenderness ratio of braces is automatically checked with Eq. F1-1. This condition must be fullfiled fulfilled under the cross-section's axial compression or tension force of the cross-section in order to plasticize the structure to absorb the necessary amount of energy.
Braces must be determined by taking into account with considering the load combinations, including seismic effects determined by the relevant building codes.
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