Truss Calculators

[Medeek Engineering]

Here is a simple schematic of a slightly more convoluted roof to try and understand the methodology a bit better:

The two girders in the center of the structure could probably be combined into one larger girder, but maybe it is better to distribute the loads across to trusses instead of one.  The shaded areas are the valley sets or overframing required to fill in the voids.

This design requires 10 main girders and 5 cross girders.  Notice how there is a hip truss at each outside corner and a half valley set at each inside corner.  When to inside corners are symmetric we end up with a full valley set.

Based on these patterns that are emerging I might be able to auto place the girders or at least provide an initial placement which then can be further refined by the user.