4-Panel Howe Truss
12 m Howe roof truss with 3 × 30 kN panel-point loads; distinguishes Howe topology from Pratt — diagonals carry compression and verticals carry tension, the opposite of Pratt.
Category: truss · Difficulty: Intermediate
Solution
| Support | Rx (N) | Ry (N) | Mz (N·m) |
|---|---|---|---|
| A | 0 | 45 | 0 |
| E | 0 | 45 | 0 |
| Member | Axial force (N) | Sense |
|---|---|---|
| Member 9 | -63.64 | Compression |
| Member 10 | -45 | Compression |
| Member 11 | -45 | Compression |
| Member 12 | -63.64 | Compression |
| Member 13 | 45 | Tension |
| Member 14 | 60 | Tension |
| Member 15 | 60 | Tension |
| Member 16 | 45 | Tension |
| Member 17 | 45 | Tension |
| Member 18 | 30 | Tension |
| Member 19 | 45 | Tension |
| Member 20 | -21.213 | Compression |
| Member 21 | -21.213 | Compression |
All reaction values are computed by the StatIQ structural engine, not generated text. Signs follow the solver's convention: a positive Ry acts upward, a negative Ry downward; a positive M is counter-clockwise.