Mat Footing: OSHA req'd rebar spacing?
Mat Footing: OSHA req'd rebar spacing?
(OP)
Is anyone aware of an OSHA requirement for the spacing of top reinforcing bars in a mat footing (say 3-4 foot thick)?
I'm seeing a detail where there's 6x6 WWF being placed atop the typical reinforcing bars (12" o.c. e.w.). I'm told the reason for this is so that the rodmen don't injure themselves if they should misstep while walking across the top mat. While I agree that this might be a prudent thing to do, a value engineering situation might make deletion of the mesh a reality. Thoughts?
I'm seeing a detail where there's 6x6 WWF being placed atop the typical reinforcing bars (12" o.c. e.w.). I'm told the reason for this is so that the rodmen don't injure themselves if they should misstep while walking across the top mat. While I agree that this might be a prudent thing to do, a value engineering situation might make deletion of the mesh a reality. Thoughts?





RE: Mat Footing: OSHA req'd rebar spacing?
RE: Mat Footing: OSHA req'd rebar spacing?
see CFR 1926.701 (b)
RE: Mat Footing: OSHA req'd rebar spacing?
RE: Mat Footing: OSHA req'd rebar spacing?
RE: Mat Footing: OSHA req'd rebar spacing?
Some wire 6" apart can be a problem on a 4' thick pour if the workers cannot work and do the job. A 240# placer standing on two wires has little stability even if he wear size 14 boots.
If it is a safety problem and the plans are drawn that way, the contractor has to provide the safe access to and around the work area. - Hopefully, the cost will be in the bid price. Usually plywood sections are used and re-used, but that introduces other problems.
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: Mat Footing: OSHA req'd rebar spacing?