◈ TrussLab

Interactive 2D structural analysis • tension, compression & deformation

Educational engineering sandbox

1 · Example structures

2 · Edit structure

Applied downward joint load (kN)

Axial rigidity EA (kN)

Display deformation magnification

Show exaggerated deformation

Drag joints to move them. Click a joint to inspect it. Use Member mode to click two joints and connect them.

Select a joint, or choose a tool to modify the truss.

Structural results

Largest member force

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Maximum joint displacement

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Structure summary

Tension (+)Compression (−)Zero

Member axial forces

Support reactions

Analysis status

Load an example and press Analyze.

Model: linear elastic, 2D pin-jointed truss, small displacement. Loads act at joints. Supports are a pin (x/y constrained) or vertical roller (y constrained). Not intended for real-world structural design or safety decisions.