Fall Protection – New attachment design for steel structures
Articles,  Blog

Fall Protection – New attachment design for steel structures


Hi, I’m Dave Katich. With me today is James Hill. We’re one of Western Area Power Administration’s fall protection coordinators. Today we’re up here in Rapid City, South Dakota. We’re working on
a 115-kv new construction project. What’s unique about this project is that fall protection is engineered into the towers this time. This is our first project where we’re engineering in a solution and not just relying on the step bolts. What we’ve done is we’ve taken the engineered flange systems and have them
bolted in with the step bolt so that you can use the flanges as you’re climbing
points and these are alternated left to right or right to left, however they are configured, so that the guy climbing up can alternate with a wire anchor hooking into the flanges on their way up. Using that as their fall protection
system as they climb. We have fall protection it’s also set up on the arms. We have right here is a ladder rail system to where basically you can hand a knee or bear crawl out and these are basically spaced about nine inches apart and this entire system is rated at 5,000 pounds. So anywhere along this railing system you can put your fall protection anchors. All right so now we’re
going to take a look at some of the equipment that we’re going to use to
attach to the ladder assembly. We’ve got a couple different harnesses and a couple different connection devices. Right now what you’d be able to use if
there wasn’t the engineered system built into the ladder system and still use
your Big Buck snap putting onto the step bolt itself, keeping it in to where basically would lay parallel so when you have a fall into that system it would end up not perching. If you somehow get caught onto the step bolt like that on a fall you’re going to perch this and
possibly bend it and you don’t want to do that. Next you are going to have your Y-lanyards even with the steel double locking snap or the aluminum double
locking snap in place and you’re going to be able to use those into the
engineered flange system and climb your way up. What you don’t want to do, because it’s
not allowed, use one of these on the step bolt, because if you do and there’s a
fall and there’s nothing stopping you coming up to the edge and that’s the
weakest point on a pole
and that will bend the step bolts. Our rings are actually loading the step bolt right in sheer at the base of the mounting assembly. That’s what our engineers have decided is the best and strongest point and this is the
solution that we’re moving forward with on all of our tubular steel structures at
Western.

Leave a Reply

Your email address will not be published. Required fields are marked *