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Civil Engineering πŸ‡ΊπŸ‡¦ UA

πŸŒ‰ Bridge Truss Analyser

A Pratt truss is solved using the direct stiffness method (FEM). Each member adds to a global stiffness matrix K; after applying boundary conditions the system Ku=F is solved by Gaussian elimination. Member forces follow from elongations.

Blue = tension   Red = compression

πŸŽ› Parameters

πŸ”­ View

πŸ“Š Results

Max tension (kN)
β€”
Max compress (kN)
β€”
Support L (kN)
β€”
Support R (kN)
β€”

Statically determinate: 4N+1 members, 3 BCs, 2Γ—2(N+1) DOF. Forces are independent of member stiffness EA.

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