Engineering Plugin for SketchUp

[Medeek]

Spent the last two days adding in some additional code so that the vertical jumps in the shear graph (at point loads and supports) are actually vertical. It was a bit more complicated than I originally bargained on but I think I finally have it figured out:



�The code seems fairly robust but tomorrow I will throw the kitchen sink at it to see if I can find any weaknesses in the algorithm.

I have't been posting much lately but that is because I've had my head buried in the code.  Most of this engineering code is completely new (not my typical plugin stuff) so there is no refactoring old code or any other shortcuts I can take.  Some of the old beam calculator is relevant however since it was so limited in its application I'm kind of on my own with this new calculator.

[Medeek]

The vertical jumps now look at lot better. So far it seems pretty solid:

[Medeek]

Here is the L/d given for both the LL and TL diagrams:



However, in this case I have an overhanging beam (right side only) and I recalled that with overhangs the L/d was usually calculated differently (from previous engineering projects working with decks). Sure enough when I ran a quick test in Forte I noticed the 2L/d overhang criteria being used, see sample below:



Where in the code (ie. IBC, ASCE etc...) is this actually codified, to use twice the actual span for overhangs? I can't seem to find it but it does appear to be common practice.

[Medeek]

The deflection section is fairly basic but it does specify the span used to calculate the L/d as well as the x location and load combination: