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Restraint vs Tie-off 3

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dik

Structural
Apr 13, 2001
25,675
I seem to recall that for saftey issues that OHSA allows a barrier to be constructed using a barrier load of 1000lbs as opposed to a real tie-off with a load of 5000lbs. I'm not sure if this is correct and cannot locate the requirement in OHSA. The barrier prevents someone that is connected to it from reaching the dangerous edge. Is this correct and can someone cite the requirement?

Thnaks, Dik

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
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The barrier is typically just a guard and is designed for standard guard loads (200lbs). There is a travel restraint that I think is 2000 lbs that prevents you from reaching the edge. It typically uses the same tie off hardware but your tether has to be too short to make it over the hazard. I'll have to see if I can find it...
 
Thanks pham... it's not a guard or safety tie-off, but a restraint. There isn't provision in Canada for something less than a tie-off that I'm aware of. The contractor is planning to use cable and as a guard, there is a 3" max deflection requirement from OHSA and the preload becomes problematic because the deck is currently only roof deck and cannot easily accept restraint posts and the cable span becomes too great. Canada doesn't have the cable guardrail provisions, either. Do you have a citation for the 2000 lb loads? or, is there no provision for restraint only?

Thanks for the response.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
No, but I haven't tried to argue that with an official in several years...looks like it's been bumped up to a full 5,000lbs now. Which makes sense. Doesn't take much for somebody to grab the wrong tether that lets them fall off the edge or mistake a restraint tie off for an arrest tie off.
 
If is something that prevents you from reaching the edge, I can envision the loading being quite a bit less than actually having to 'stop' you in a fall condition.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
Dik,

Is this barrier in use during construction or is it a permanent application? If for construction, you'll want to go through OSHA 1926. There might be something in there that's useful.

Otherwise I think you're limited to guards (i.e., guardrail) or tie-off points.

Please note that is a "v" (as in Violin) not a "y".
 
It's a barrier for temporary construction, and will be removed. It's to prevent access to a fall condition, not to arrest one.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
Will chase this down...

Clipboard01_yra6xk.jpg


-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
When I worked for a contractor, that was what was utilized frequently. This was from 2008 to 2011 - at that time the distance from the edge was 6ft. It may have changed since then.
On the other side of the warning line, fall protection was required. I would imagine that is still a requirement.

Please note that is a "v" (as in Violin) not a "y".
 
There seems to be a conflict on 6' distance and 15' distance from the edge... and the load appears to be 500 lbs...

Clipboard01_afdhy9.jpg


-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
and...
Clipboard01_jssmrm.jpg


-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
I know you mention OSHA, but then you also mention Canadian requirements...

Here is a link the WorkSafe BC requirements for cable guards:
In short, the requirement is that the rope is mounted in a way that if a horizontal 125 lb force is applied, it does not deflect past the roof/parapet/hazard edge.
 
Thanks... I'm not aware of anything like this in Manitoba... but BC may be more acceptable, to the AHJ, than OSHA...

Thanks...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik
 
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