The IBC states that a 50 plf be applied to the top rail of the guardrail. In a 3 span condition, I have seen it applied as a uniform load across the entire rail (3 spans) and I have seen it applied for just one span. Anybody have a comment on this? I know that a minimum 200 lb concentrated...
My main concern is, if there a code issue for grade beams being required. I know that for piles grade beams are required unless there are three. But since caissons are larger, are they stable enough with the grade beams?