For setting Overhead crane columns, We prefer to Epoxy set anchors after the Slab (or footers) are cured
This is because cast in place anchors are rarely done correctly - crane system alignment is critical to function of crane.
A situation has arisen where the foundation installer cannot tell us...
A discussion in our office has come up regarding placement of structural steel columns & overhead crane runway beams on recently placed foundations. We recognize that concrete reaches published strength in the 28 day time frame. But if we simply want to erect the steel say 5 to 7 days after the...
We are designing columns, headers & footers for a free-standing, 30 ton capacity monorail system, 32' tall. We are somewhat deadlocked on the debate as to what LATERAL load should be applied to the structure (by the lifted load).
AISC (9th edition) page 5-29 notes that 20% of lifted load &...
