W16X77 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 16.50 | in (419.1 mm) |
| Flange Width (bf) | 10.30 | in (261.6 mm) |
| Flange Thickness (tf) | 0.76 | in |
| Web Thickness (tw) | 0.46 | in |
| Area (A) | 22.60 | in² (145.8 cm²) |
| Weight | 77 | lb/ft (115 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1,110 | 138 | in⁴ |
| Elastic Section Modulus (S) | 134 | 26.90 | in³ |
| Plastic Section Modulus (Z) | 150 | 41.10 | in³ |
| Radius of Gyration (r) | 7 | 2.47 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 3.57 | in⁴ |
| Warping Constant (Cw) | 8,590 | in⁶ |
| Distance Between Flange Centroids (ho) | 15.70 | in |
| Effective Radius (rts) | 2.85 | in |
Design Resources
- Beam Capacity Calculator — Check W16X77 for your span and loads
- Column Capacity Calculator — Check W16X77 as a column
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full W-shape dimension table
- Steel Grades Reference — A992/A572 material properties
Frequently Asked Questions
What is the weight of a W16X77 beam? 77 lb/ft (115 kg/m). A 40-ft length weighs approximately 3,080 lbs.
What is the section modulus of W16X77? Sx = 134 in³ (strong axis) and Sy = 26.9 in³ (weak axis). The plastic section modulus Zx = 150 in³ and Zy = 41.1 in³.
What steel grade is standard for W16X77? Typically ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for W-shapes. Also available in A572 Grade 50 or A36. Verify with mill certificate.
What is the moment of inertia of W16X77? Ix = 1110 in⁴ about the strong axis and Iy = 138 in⁴ about the weak axis. The radius of gyration is rx = 7 in and ry = 2.47 in.
Related Pages
- Steel Beam Sizes Reference
- Beam Capacity Calculator
- Column Capacity Calculator
- Section Properties Database
Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.