Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK 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. madmantrapper

    cracked trusses in residential attic

    I thought you were going something about Santa's sled.
  2. madmantrapper

    Connecting different sized cables

    Or it might fall under a tap rule.
  3. madmantrapper

    IRC 502.6.1 purpose

    It used to be a note or something in the IRC that said something to the effect that if the joist butted you needed to place a strap across the top. I'll see if I can find it.
  4. madmantrapper

    Steel Plate on top of Concrete Column?

    I have placed steel plates on top of concrete columns after the concrete was poured in the tube and vibrated. Fill to capacity and place plate, rattle the place to be sure the concrete is filled in around the studs. Just because I have done this does not mean it is right but it seemed to work.
  5. madmantrapper

    fresh concrete slab caught in hard rain

    I would add a couple inches to the top also. Have done this in the past without a problem that I know of. The top layer of the existing is definitely going come apart. Also will be a dust problem unless sealed with a thick sealer.
  6. madmantrapper

    Is Building Permit required by code?

    I would not call and open that can of worms. Most all of my experience has been in equipment maintenance and modification. I have not ever needed a permit. Most of the work by us was in MD PA and SC.
  7. madmantrapper

    Residential Deck - Wood Post

    I'm in Maryland, most counties here require 16 to 20 inch diameter 8 inch thick footer below frost line 30 inch in most areas.
  8. madmantrapper

    4x6 wood post splice

    You cut blocking the out of the floor joist material and place along the joist header building it out past the depth required for the column or post. The blocking rest on top of the post from below and the next post above rest on top of the floor material, I think you said 2 x 6's laid flat.
  9. madmantrapper

    column unbraced length

    I see it braced in one direction (lets call it X), but what about 90 degrees from it (lets call it Y).
  10. madmantrapper

    Sistering joists with smaller dimenisional members

    A photo would be nice but I think I understand what you are after. How are you going the handle the hole where the wire is? Are you going to have to pull the wire and redrill the hole? I have fixed situations like this before with 1/4 inch steel plate along the bottom vertically, 4 inches tall...
  11. madmantrapper

    Discrete vs Combined Footings

    Yes I think BA is right also. I've never done what the OP suggest unless the edges were so close the earth fell in between the holes.
  12. madmantrapper

    Under plates grout

    That's 1600 or so pounds hanging on those screws.
  13. madmantrapper

    Under plates grout

    What is the area of the plate? How much load? Are you going to grout in place or is lt going to be able to be lifted and set in grout bed? Can shims be used instead? What is the plates sitting on?
  14. madmantrapper

    Shaft reclaimation challenge - solidification cracking? (Rush job)

    I find these worth their weight in gold. Pulled me out of many a problems on power presses. http://www.ringfeder.com/en/international/products/ringfeder/?g=382
  15. madmantrapper

    Frozen concrete

    Post back on this thread to let us know the outcome please.
  16. madmantrapper

    Horizontal cracks in beam below slabs

    http://img809.imageshack.us/img809/1623/2kxd.jpg In this photo, the bars look so close, I don't see how the aggregate could get between them.
  17. madmantrapper

    Formworks leaks

    Quite a differnent world nowadays, eh? Man that's the truth alright!
  18. madmantrapper

    Freeze-Thaw Effects on Steel Structures

    I've seen water freeze in pipes of all sizes, unconfined and confined, break open. I've seen scaffold legs get water in them that were plugged with dirt freeze and break with the top sides open. Don't know how this relates to what you are doing.
  19. madmantrapper

    Clay bricks

    The building is fifty years old and this is a new issue?
  20. madmantrapper

    Concrete placement to ramp slab - top-down, or bottom-up?

    I've never a slope that long but we always went from top to bottom. I'm not sure why. Even when we were doing steps or stair runs we went top to bottom.

Part and Inventory Search