Those are Harvestores, yeah. We're on several that aren't used anymore, so they're always empty, and they're quite solid - I've never felt any movement... the roof can flex a bit, but that's about all, and that usually doesn't even happen if stay in the middle.
On Wed, Apr 22, 2015 at 1:09 PM, Ken Hohhof <[email protected]> wrote: > Are those Harvestores or similar? Isn’t the silage inside a structural > component? Like they flop around when empty or something? > > *From:* Mark Radabaugh <[email protected]> > *Sent:* Wednesday, April 22, 2015 12:49 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Silo railing mounts > > The problem with this type of tank is that the railing itself isn't > stiff enough to mount anything without creating another structure entirely > to brace the railings. The railings literally move about 4 inches under > about 20lbs of pressure. The railings meet the absolute minimum required > to comply with OSHA, and even that is a bit doubtful. > > Mark > > On 4/22/15 1:30 PM, Chuck McCown wrote: > > I really really really really really prefer these > instead................................... > > *From:* That One Guy /sarcasm <[email protected]> > *Sent:* Wednesday, April 22, 2015 10:31 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] Silo railing mounts > > a UPC1 from sitepro. put a pipe inside the angle of the upright to give > you something to bite into for the clamps. > That doesnt look all that stable so you might need to run a stabilizer bar > off. thats what we have done, no pics though. > 34db im guessing is 3' or more, so I dont know that this would have enough > beef for that > > On Wed, Apr 22, 2015 at 9:37 AM, Mark Radabaugh <[email protected]> wrote: > >> This is probably the best picture I have of what we did with one of >> those silos. Your silo looks identical to the one we are on: >> >> >> >> The railing, as you noticed, is very wobbly. At the base of the vertical >> unistrut are L brackets. We took one nut off the top of the tank and >> secured the bottom of the L to the stud. The two unistrut cross bars were >> mostly to give us a mount for the 900 omni, but they also serve to stiffen >> the structure side to side. You may want to run more of those on >> diagonals to further stiffen it. Front to back stiffness is provided by >> the threaded rods that you can just make out in the foreground on the right >> side of the picture. The threaded rods pull in on the railings while the >> unistrut keeps the 'circle' of the handrail from collapsing inward. The >> overall assembly is reasonably stiff for the load we have on it. For a >> bigger dish you may want to substitute something stiffer than the threaded >> rod front/back. Adding a cross brace between the walkway rails would >> help stiffen the entire assembly but would block the walkway and might be >> politically unacceptable. >> >> Mark >> >> On 4/22/15 10:22 AM, Jeremy wrote: >> >> Anyone want to share pictures of mounts on the top of silos? The railing >> is not super solid and we need a 34db dish on top there. We should be able >> to remove two bolts from the seams and install a metal plate for a U-bolt >> to solidify the bottom, and U-bolt to the rail at the top. That would be >> plenty solid for sectors, but debating bringing back some sort of bracing >> arms for the BH mount. >> >> I know many of you have sites on top of silos. Anyone willing to share >> mounting methods and techniques and/or pictures? >> >> >> > > > -- > If you only see yourself as part of the team but you don't see your > team as part of yourself you have already failed as part of the team. > > >
