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Homeowner Forum / Construction / December 2005Looking for the brand name of structural steel
I am working on the design of a hospital pharmacy and they want to suspend a pneumatic tube station from the structural concrete ceiling above a checking station. Have worked on jobs in the past where we used structural steel elements, most common being 2" by 2" squares to construct a structure. >From memory it was something like CoStruct or something like that. Googled that and nada - anybody got any ideas. Hate to leave it to the architect - if he does not like the idea - will say, "OH YOU CAN"T DO THAT". Architects like to fill spaces full of walls - guess AutoCAD has a really nifty wall drawing feature. THanks In a previous post butch burton wrote... > I am working on the design of a hospital pharmacy and they want to > suspend a pneumatic tube station from the structural concrete ceiling > above a checking station. Have worked on jobs in the past where we > used structural steel elements, most common being 2" by 2" squares to > construct a structure Sounds like you are looking for an HSS2x2x wall thickness. Perhaps you could just call out a a 2x2 tube steel for your supports and let the contractor figure it out. Or, you could spec a 1/4" wall thickness which should be more than ample. If the ceiling is prestressed or post-tensioned concrete (rather than cast in place) then you might have bigger problems if you hit a P/S strand with your anchor bolts.  SignatureBob Morrison, PE, SE R L Morrison Engineering Co Structural & Civil Engineering Poulsbo WA bob at rlmorrisonengr dot com >I am working on the design of a hospital pharmacy and they want to > suspend a pneumatic tube station from the structural concrete ceiling [quoted text clipped - 9 lines] > > THanks Unistrut/allthread is pretty common for light weight headers/hangers. There are proprietory bolt together systems for light duty structures.I see them advertised in the trade journals but have rarely used such a thing. If you talk to a contractor that installs the pneumatic conveyors they will tell you what method would be commonly used in their area. Or ask the manufacturer how their product is normally hung from a structure like yours. Then all guesswork is eliminated, and you know that you have drawn something that can be easily and effectively installed in the field. JTMcC. In a previous post JTMcC wrote... > Unistrut/allthread is pretty common for light weight headers/hangers. > There are proprietory bolt together systems for light duty structures The suggestion for Uni-strut is a good one. Mechanical and electrical contractors commonly use these to hang equipment. My earlier warning on drilling into P/S or P/T slab still holds. SignatureBob Morrison, PE, SE R L Morrison Engineering Co Structural & Civil Engineering Poulsbo WA bob at rlmorrisonengr dot com Thanks - it was Uni-Strut. I am no engineer but I think the ceiling was one of those poured in place things with lots of rebars and metal reinforcing. WIll let the engineers worry about that. Just want to try and get this PTS suspended and not attached to the workstaiton - a real PITA if it is attached because it then has to meet structural code requirements and the cost goes way up. And here I get paid on commission - but would rather they spend it on workstations than structural enhancements. Thanks again - this is what this group is all about. If you are looking for generic steel tubing to make a weldment, etc try http://www.ryersontull.com/stocklist1/RedbookServlet?COM=GetTable&ID=1132 bill >I am working on the design of a hospital pharmacy and they want to > suspend a pneumatic tube station from the structural concrete ceiling [quoted text clipped - 9 lines] > > THanks |
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