Use the 2D Truss Solver — Member Forces, Reactions &

What is the 2D Truss Solver — Member Forces, Reactions &?

Trusses are the classic statics problem: straight members pinned together at joints and loaded only at the joints, so each member carries a pure tension or compression force. This solver uses the direct stiffness method — the approach used by professional structural software — to find the axial force in every member, the support reactions and the movement of every joint for any 2D truss you type in: list the joint coordinates, the members as joint pairs, the supports (pin or roller) and the loads. Examples such as a Warren, Pratt or Howe girder, a cantilever bracket and a crane jib are one click away.

Results include a colour-coded diagram — red for tension, blue for compression, line thickness proportional to force — with an optional exaggerated deformed shape, plus tables of forces, stresses, elongations, reactions and displacements and a CSV export. Equilibrium is checked, static determinacy (m + r − 2j) is reported, mechanisms are detected, and Euler buckling safety factors are shown for compression members when you give an I value. For the textbook triangle with a 10 kN apex load the bottom chord is +3,333 N (tension) and the sloping members −6,009 N (compression).