Build structures with beams, joints, and supports — then stress test them with loads and earthquakes
Tools
Test
Parameters
9.8
1.5
500
Presets
Joints: 0 | Beams: 0 | Supports: 0
Controls:Beam: Click two points to connect with a beam (snaps to existing joints).
Support: Click to place a fixed anchor.
Load: Click a joint to apply downward force.
Move: Drag joints to reposition.
Delete: Click a beam or joint to remove it.
Press Simulate to apply physics. Earthquake shakes the structure. Beams turn red under stress and break if overloaded.