Welded Flange Plate Moment Connection Design | AISC 360

Design Parameters

Design method

Units

Project Name

Designer

Description

Load cases (moment at the column face; beam axial + compression)

Name	Moment (kNm)	Shear (kN)	Axial (kN)

LRFD: factored loads; ASD: service-level combinations.

Column axial force (kN, + compression)

Column (storey) shear V_c (kN)

Section family

Steel grade

Section

Depth d (mm)

Flange width b_f (mm)

Flange thickness t_f (mm)

Web thickness t_w (mm)

Root radius r = k_des - t_f (mm)Used in Z_x, I_x and T; not in the catalogue.

AISC Shapes Database v16.0.

Section family

Steel grade

Section

Depth d_c (mm)

Flange width b_cf (mm)

Flange thickness t_cf (mm)

Web thickness t_cw (mm)

Root radius r_c = k_des - t_cf (mm)

Two-sided joint (equal and opposite gravity moments; seismic moments add in the panel zone)

Bolts

Diameter

Electrode

Plate grade (flange / shear plates, stiffeners)

Flange plates

Top plate width b_p (mm)

Top plate thickness t_p (mm)

Bottom plate width (mm)

Bottom plate thickness (mm)

Setback (column face to beam end, mm)

Fillets to the beam flange (mm)

Top plate weld length, each side (mm)

Bottom plate weld length, each side (mm, 0 = as top)

End weld across the top plate (narrower than the flange)

Plates to the column flange

Fillet leg (mm)

Conventional single-plate shear connection welded to the column flange (Manual Part 10): bolt group at e = a/2, plate shear / block shear, two-sided fillets.

Plate thickness (mm)

Plate length h_p (mm)

Bolts (one line)

Bolt pitch (mm)

a, weld to bolt line (mm)

L_eh (mm)

L_ev (mm)

Fillets to the column flange, both sides (mm)

Transverse stiffeners / continuity plates at both beam flange levels

Width b_s each side (mm)

Thickness t_s (mm)

Corner clip (mm)

Length (mm, 0 = full depth)

Fillets to the flanges (mm)

Fillets to the web (mm)

Web doubler plate t_dp (mm, 0 = none)

Design Guide 13: the stiffeners carry R_u,st = P_f - φR_n,min; the doubler adds 0.6F_yd_ct_dp to the panel zone.

Elevation

Section

3D View

Edges See-through support

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Welded flange-plated FR moment connection

Saved Projects

Design Parameters

Load cases (moment at the column face; beam axial + compression)

Flange plates

Elevation

Section

3D View

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Welded flange-plated FR moment connection

Saved Projects

Design Parameters

Load cases (moment at the column face; beam axial + compression)

Flange plates

Elevation

Section

3D View