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 cowski 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. jhnblgr

    Use of ties & vertical rebar reinforcement to help with Concrete breakout strength of shear lug

    What about friction force?
  2. jhnblgr

    A Conceptual Modification to the Continuing Education Requirements

    Continuing education is a good idea but the execution of it has been dumbed down so much it’s become red tape in the US. Likely you really should be required to take a college level course every few years in the area you practice to keep current or things very specialized in nature. A lot of...
  3. jhnblgr

    Question for California PEs: PE as RIC for a Business — Legal and Compliant

    Also when you work for yourself you have to remember all the tax liabilities and such.
  4. jhnblgr

    Paradoxical strut-and-tie tests (less = more)

    I think it really comes down to the reduction of concrete in the mid span allowed for greater deflection without breaking since if a crack develops in the bottom it would propagate all the way to the top, where as the alternatives have voids the cracks can’t propagate. The second thing is the...
  5. jhnblgr

    Question for California PEs: PE as RIC for a Business — Legal and Compliant

    Typically engineering business owners must be PEs, with select exemptions but always one must be a PE and non PE a certain percentage. Likely option 1 isn’t going to work and I don’t know why you would even want it, option two your business would be a drafting service that a PE would subcontract...
  6. jhnblgr

    Beam Reinforcement Calculation

    Likely cheaper to replace the beam. Need more background on what the actual issue is
  7. jhnblgr

    Max Shims under Steel Beam Bearing Plate

    I would say you would have to see at what height buckling would control, likely the grain will fail in perpendicular compression prior.
  8. jhnblgr

    Pilaster minimum reinforcement

    Agreed that shear studs aren’t required but due to the nature of the construction joints to the wall units the design of t&s steel would be difficult to install without something to attach to. Real simple solution is to use weldable rebar.
  9. jhnblgr

    Composite Deck Superimposed Loads - Shored Construction

    I think the super imposed loads in the charts only applies to the finished product and has no relation to the shoring spans.
  10. jhnblgr

    Composite Deck Superimposed Loads - Shored Construction

    I was using the online software which shows the calculations
  11. jhnblgr

    Composite Deck Superimposed Loads - Shored Construction

    I stand corrected they included the DL +construction live load in their total calculations for uniform loading if you use their online tools LL1= 20 psf this is for use with concrete LL2= 50 psf this is for use without concrete DL1= concrete + steel decking DL2= steel decking W1= LL1+DL...
  12. jhnblgr

    Composite Deck Superimposed Loads - Shored Construction

    you have to add it to the concentrated live load with concrete input.
  13. jhnblgr

    Thread embedment required for bolt in tension

    you likely can find similar companies within CA, i know these guys typically have quick turnaround unless you need a really long continuous threaded rod. Typically when someone tells me they can’t find a product they never actually even checked.
  14. jhnblgr

    Thread embedment required for bolt in tension

    Maybe contact a manufacturer and see what they have. Some times they stock it or they can make what you need https://www.portlandbolt.com https://haydonbolts.com
  15. jhnblgr

    Wind Load

    My experience is with AASHTO signs and luminaries spec is what I would apply. Calculate the flat face areas and go from there. I guess you could use the shapes centroid and apply the moment arm to the base and figure the resisting moment required
  16. jhnblgr

    Thread embedment required for bolt in tension

    https://www.aisc.org/globalassets/modern-steel/archives/2014/12/si.pdf https://www.aisc.org/globalassets/aisc/publications/standards/a348-20w.pdf
  17. jhnblgr

    exterior slab on grade

    The only issue with vapor barriers is all the water works its way up through the concrete, making it more difficult to finish with excess bleed water. Also if used rebar can’t be used for grounding. I think vapor barrier then stone then concrete would be best, stone protects vapor barrier from...
  18. jhnblgr

    Steel Bearing - bridge Anchor Rod Design

    What the friction force from dead load? Shear lug maybe
  19. jhnblgr

    box culvert analysys

    Typically railroads have their own standards. Based on your span and height you are looking at a bridge or an aluminum arch culvert. Concrete is impractical for the spans and height typically.
  20. jhnblgr

    External anchorage of reinforcement - is this feasible?

    For the steel plate to take load the bond must break, if the bond breaks the concrete will crack. You will already be in failure regardless of what you do.

Part and Inventory Search

Back
Top