Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Catacus

    Inspection of Sign Structures

    tft2001, if those are the typical billboard structures of pipe you see along highways, AEC in Minneapolis did an extensive structural and condition review for one of the big sign companies (most were in Florida), back in the 90's. They had field inspectors measure all relavent dimesions and...
  2. Catacus

    Historic rebar identification

    That's great, I'll see what I find, thanks Sliderulera
  3. Catacus

    Historic rebar identification

    Thanks Mike, I'm sure that you are right about that. It is a substantial building though so they must have obtained a lot of it. I googled it and looked through the old reference books and didn't see anything like it so I thought I'd check here. As you imply it's just a matter of getting the...
  4. Catacus

    Historic rebar identification

    I have a concrete slab that is reinforced with what appears to be 3 wires twisted together, about 3/16" dia wire. The slab is about 6" thick with the twisted bars bottom at 6" on center spanning 9 feet between dropped concrete beams. It was a 4 story warehouse buildng, not sure of the age but...
  5. Catacus

    Wood Truss Gable End Bracing (piggy back condition)

    Be sure to make sure that the top chord of the main truss is adequately braced too. With a higher roof load it can be a more likely failure mode, with the top chord buckling into an S shape.
  6. Catacus

    Veneer Expansion

    I use 6x10^-4 in/in for brick for thermal expansion. * I use 3x10^-4 in/in for brick moisture expansion. I use 6x10^-4 in/in for creep and shrinkage of the concrete. *100 degree F temp change So for an insulated concrete frame with face brick, 12 feet floor to floor the total is (6+3+6)x10^-4...
  7. Catacus

    Steel Joist - Shear Transfer Parallel to Joist

    I have seen round steel rods used in similar situations, needs minimum of 2 rods since they are tension only. The rods are parallel with the joist and wall and one end is connected to the wall the other to the joist. Sort of like mooring a boat to a dock. Allows building expansion and...
  8. Catacus

    Snow drift displacement

    You are correct Galambos, thank you. It appears to be an acceptable way to go (if done correctly of course). Will feel more comfortable with it now. Catacus
  9. Catacus

    Snow drift displacement

    Yes, ASCE 7-05, and yes a windward step, but the point is that the snow that composes the drift is replaced by a "light weight" dummy drift. The wind does not "know" whether it is snow under the drift or a cavity filled with air, at least that is the idea.
  10. Catacus

    Snow drift displacement

    Any reasoning for it Toad? See attached for a bit more info.http://files.engineering.com/getfile.aspx?folder=e736714c-4d2e-4c00-a204-17bd078990f4&file=DRIFTOBSTRUCTION.pdf
  11. Catacus

    Snow drift displacement

    Any concerns with building up a triangular obstuction on a roof adjacent to a higher roof or parapet to displace the code required snow drift load?

Part and Inventory Search

Back
Top