Monday, December 10, 2007

Stair stringer design for continuous kinked stringer

What is the proper way to analyze/design a steel channel stair stringer when the stringer is continuous from the angled riser through to the end of the level platform?  There would be a laterally braced full pen weld at the angle point.
 
Is this just a simple span beam calc for the full length?  Or is there another way to model the angled section with simple methods?
 
Jim Wilson, PE
Stroudsburg, PA