Aisc Manual Table 6-2 Official

: Look for the row corresponding to the effective unbraced length of the member. Read Strengths : Directly find the available axial ( cap P sub n ), shear ( cap V sub n ), and moment ( cap M sub n ) strengths for both Interaction Check : Use the provided coefficients ( ) to quickly satisfy the Chapter H interaction equations ( Key Benefits

: It eliminates the need to calculate individual strengths from scratch or navigate multiple sections of the manual.

): Compressive strength based on the effective unbraced length ( Bending strength based on the unbraced length ( Lbcap L sub b aisc manual table 6-2

W12×65, ( L_b = 10 \text ft ), ( P_u = 150 \text kips ), ( M_ux = 250 \text kip-ft ), ASTM A992 (Fy=50 ksi).

Let’s open the AISC Manual to Part 6. You will see a two-page spread for each W-shape series (e.g., W12, W14, W16). Here is what each column represents: : Look for the row corresponding to the

of the interaction equation using the coefficients from Table 6-2? Printed Manual Companion Now Available - AISC

[ \frac\phi_b M_nx\phi_c P_n \text has units: \frackip\text-ftkip = ft ] So ( p ) = ( \frac98 \times (\textft) \times 10^3 ). But ( p ) is tabulated without units – it's a coefficient. When you compute ( p \cdot P_u ), the product has units of kip-ft, matching ( M_ux ). Let’s open the AISC Manual to Part 6

: It provides the necessary constants to solve the interaction equations found in Chapter H of the AISC Specification How to Use Table 6-2

| Condition | Table 6-2 applicability | |-----------|--------------------------| | ( M_ry ) | Not included. If ( M_ry ) > 0, must use Spec Eq. H1-1a/b directly or AISC Manual Table 6-4 (for combined biaxial bending). | | Tension + bending | Table 6-2 is for compression + bending . For tension + bending, use Table 6-3. | | Unbraced length not tabulated | Interpolation is not allowed for ( \phi_b M_cx ) or ( p ) in inelastic/elastic LTB zones. You must use the next longer ( L_b ) or compute directly. | | Cb factor | Table 6-2 assumes ( C_b = 1.0 ). If ( C_b > 1.0 ), you can adjust: ( M_cx,actual = M_cx,table \cdot C_b ), but ( p ) changes slightly. Conservative to use table as-is. | | Slender webs/flanges | Table 6-2 assumes compact sections (per B4.1). For noncompact, ( M_nx ) is reduced; table not valid. | | K-factor effects | ( \phi_c P_n ) in Table 6-2 is for flexural buckling (usually ( K_xL_x ) and ( K_yL_y )). Check effective length tabulated. |