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!

Recent content by nac521

  1. nac521

    Single tab moment connection

    Add a cap plate and do all bolted connections - no field welds - cheapest imo
  2. nac521

    Steel Beam on Wood Column Connection

    Why steel? Is there a member depth limitation?
  3. nac521

    Engineer wanted splice on middle post

    As an engineer with years of residential construction experience, I take the side of the contractor on this case. If I pushed back and made a contractor do extra work because a design was changed, I would have zero clients. I would ask for a formal calc package an tell them you are getting it...
  4. nac521

    Engineer wanted splice on middle post

    Yes way overkill. To repeat JLNJ said, it only increases the reaction by 12.5%. However, why not ask the question (RFI, etc) prior to making the change to avoid all this mess? This seems common in residential construction; make the change, then ask if ok after.
  5. nac521

    Wood stairs moment connection

    We asked for calcs for this stair 'z' wood stringer and never received any.
  6. nac521

    Wood Columns/Trusses to Steel Beam Connections

    Why a dropped steel beam if every clear inch matters to the owner? Upset a wood LVL beam in the truss space and use top chord intermediate bearing trusses. Or a flush LVL beam with hangers for bottom chord bearing trusses.
  7. nac521

    How much capacity would you allow in this connection?

    Replace with an HGUS48 hanger
  8. nac521

    Truss Heel Blocking

    That blocking requirement isn't isolated to just NC. The same prescriptive wall bracing provisions are in the IRC2009 R602.10.6.2 for heel depths greater than 9 1/4".
  9. nac521

    Discontinuous chords in wood framed building @ dormers

    You have a diaphragm with intermediate offsets (notches). If you are looking for a more in-depth analysis of how to design the transfer wood diaphragms around the notches, check out 'The Analysis of Irregular Shaped Structures - Diaphragms and Shears Walls' by Terry Malone. Most cases only...
  10. nac521

    STHD14 Strap Installation gone Wrong

    Could you use the MSTCM60?
  11. nac521

    Design of a tree as a structure / inspectors gone wild

    Not sure if this will help, but check out http://treehouses.com/joomla/index.php/building-specifications-and-stress-analysis-report This article describes story of the Out 'n' About, a treesort located in Takilma, Oregon and the process to verify the structural use of live tress.
  12. nac521

    Rafter to exterior wall connection

    Yes, most have out of plane load capacity, minimal though, and it puts the nails from the hurricane tie to the plate in constant withdrawal, which is not ideal. I would add another tie (or multiple ties depending on the amount of thrust) to the opposite side of the plate to rafter and verify the...
  13. nac521

    Am I reading Code Incorrectly?

    Without seeing the modular plans you are describing it is difficult to comment on the disparities between the modular plan girder layout and the tables in the IRC. Keep in mind the modular design is an engineered solution and won't exactly match the prescriptive IRC tables.
  14. nac521

    Interior Footing Embedment

    If by embedment, you mean footing thickness, then IRC403.1.1 states 6" thickness minimum. Chapter 7 of ACI 332-10 also covers residential applications for concrete footings and states similar requirements.
  15. nac521

    Unbraced Wood Framed Headers

    Check out the attached 'Dropped Header Design Guide' for additional information.http://files.engineering.com/getfile.aspx?folder=9b49fa83-6522-45ed-a9a9-210302db74b7&file=WIJMA_Dropped_Header_Design_Guide_(11-7-07).pdf
See more

Part and Inventory Search

Back
Top