Flashcards in SB 66/ use of WOOD FORMS for support of concrete Deck (4)
Method of forming poured concrete floors
-5/8" or 3/4" plywood hold in place by 4"x4" wood studs
-one shoring stud placed every 4 FEET on center extending from floor to underside of plywood form above
Heavy fire load.
storage of sheets of plywood and wood studs previously stripped from a CURED FLOOR
-lumber usually found stored on floor which is 2 LEVELS below the most RECENTLY POURED FLOOR and will serve as the forms for the next floor to be poured
-problems on this floor are not structural failure but HEAVY FIRE LOAD
Determine how STRUCTURALLY SOUND the most recently poured floor is ...
must be known WHEN CONCRETE was poured , how many HOURS CONCRETE HAS BEEN CURING
-obtaining this info difficult and not always accurate, unless there is a responsible person on the job site, CONSTRUCTION ENGINEER , BUILDING SUPERINTENDENT OR CONCRETE FOREPERSON AND THEY CAN STATE EXACTLY TIME IT WAS POURED, IF THEY CAN'T
ASSUME CONCRETE WAS POURED IN PRIOR 24 HOURS