FEM, Stiffness matrix of this inverted queen post frame.

Hi

I was wondering if some engeneer out there could help me program the stiffness matrix of this inverted queen post frame. Just make ur own dimensions, angles and i will change them.

My goal is to modulate a live action analysis of this 2D fram, bridge. Maby with use of slider. It will be some distrebuted loads, some point loads, car. selfweights etc.

Presiate all help.

Most, sincerly!