AISC 360-22ASTM A992 / A6W16 Series
AISC W16x77 Properties & Dimensions
Standard wide flange I-beam cross-section properties, geometric dimensions, and LRFD design capacities per AISC Steel Construction Manual 15th/16th Edition.
Cross-Section Technical Schematic
Dual Units: Imperial (US) · SI MetricGeometric Dimensions & Area
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Nominal Weight | w | 77 lb/ft | 114.6 kg/m |
| Cross-Sectional Area | A | 22.6 in² | 14581 mm² |
| Overall Depth | d | 16.5 in | 419.1 mm |
| Flange Width | bf | 10.3 in | 261.6 mm |
| Flange Thickness | tf | 0.76 in | 19.3 mm |
| Web Thickness | tw | 0.455 in | 11.6 mm |
| Flange Centroid Distance | ho | 15.7 in | 398.8 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 1110 in⁴ | 462 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 134 in³ | 2196 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 150 in³ | 2458 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 7 in | 177.8 mm |
| Weak-Axis Inertia | Iy | 138 in⁴ | 57.4 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 26.9 in³ | 441 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 41.1 in³ | 674 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.47 in | 62.7 mm |
| Torsional Constant | J | 3.57 in⁴ | 1486 ×10³ mm⁴ |
| Warping Constant | Cw | 13520.1 in⁶ | 2306.7 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 2.85 in | 72.4 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
562.5 kip-ft
763.2 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
202.7 kips
902.4 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.78
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
32.9
✓ Compact Web (λw ≤ 90.5)