Tool 17 · Statics · EN 1990
Custom Truss Analysis
Define any truss — joint coordinates, supports and point loads — and the direct stiffness method returns every member force in tension or compression, the reactions and the deflected shape, worked step by step.
Model editor
Joints
x (m)y (m)support
A
B
C
D
Members
1→
2→
3→
4→
5→
Point loads
jointFx (kN)Fy (kN)
1
Loads act at joints: Fy is positive upward, Fx positive to the right.
Member forces in a determinate truss do not depend on E and A — only the deflections do.
Blue = tension · red = compression · dashed = deflected shape ×1551
RA
5.00 kN
H = 0.00 kN
RC
5.00 kN
H = 0.00 kN
Max tension
6.7 kN
A–B
Max compression
-8.3 kN
A–D
δmax
0.1 mm
joint deflection
Member forces
| Member | Length (m) | N (kN) | State |
|---|---|---|---|
| A–B | 2.00 | 6.67 | Tension |
| B–C | 2.00 | 6.67 | Tension |
| A–D | 2.50 | -8.33 | Compression |
| C–D | 2.50 | -8.33 | Compression |
| B–D | 1.50 | 0.00 | Zero |
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