Home▸Physics & Mechanics▸Truss Bridge Builder — Drag-and-Drop Beam Stress Test (2D)

🌉 Truss Bridge Builder — Drag-and-Drop Beam Stress Test (2D)

Build a 2D truss bridge by dragging beams between grid nodes, then run a live finite-element load test. Members are colour-coded by stress in real time, from safe green to failing red, using a real direct-stiffness-method solver.

Physics & Mechanics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategoryPhysics & Mechanics

RenderingCanvas 2D

DifficultyModerate

Target FPS60

ControlsClick a grid point to place a node, Drag from one grid point to another to add a beam, Click an existing beam to remove it, Load (kN) slider sets the test load magnitude, Beam strength (material) slider sets the failure threshold, Test Load button sweeps the load across the deck and reports stresses, Undo Beam removes the last beam placed, Clear / Reset rebuilds an empty span

physicsengineeringtrussstructural-analysisbridgefem

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⚙ Under the hood

Place nodes and drag beams to design a truss bridge spanning a pin and roller support, then run a live load test. A direct-stiffness finite-element solver computes tension and compression in every member in real time, colouring beams from safe green to failing red.

physicsengineeringtrussstructural-analysisbridgefem

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install