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Principles Of Steel Design2D

Beam-Columns - Theory & Concepts - Interaction Diagram

Design of members subjected to combined axial compression and flexural loads, including second-order effects and bracing requirements.

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Beam-Column Interaction (AISC Chapter H)

Member Capacities (Assumed W14x90):

  • Axial Compressive Strength (ϕPc\phi P_c): 1000 kips
  • Flexural Strength (ϕMcx\phi M_{cx}): 600 k-ft
200 kips
150 k-ft

Interaction Value: 0.422

Equation H1-1a used (Pu/ϕPc0.2P_u / \phi P_c \ge 0.2)

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Limit: ≤ 1.0