From my point of view, it seems even if ASCE 7-02 doesn't ask you to superimpose the sliding load onto the drift load, it wouldn't be too conservative to do so. In reality, your design drift could happen. If that happens (meaning you just got a whole lot of snow) the chances the snow slides...
I am an EIT and new to eng-tips.
Recently I have been given the task of helping my firm decide which new anaylsis software would be best for our company. I belong to a small firm (under 10 engineers) in the midwest who generally caters to independant architectural firms. Most of our projects...
