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. TRAK.Structural

    bARN WALL GIRT DEFLECTION

    Definitely use 10 yr MRI wind, it'll give you an extra 0.7 factor to reduce the loading. I would think L/120 is in the right range. Like others have mentioned, calc out this number and let them decide if that is acceptable or not.
  2. TRAK.Structural

    Loft Reconfiguration

    It's all 2x, 80+ years old. Yea I can already here that comment too so trying to get out ahead of it. Mostly to keep in line with the existing support conditions. Guess I could check the span on the rafters to see if they can go the whole way, although I think there will be some additional...
  3. TRAK.Structural

    Loft Reconfiguration

    Working on a residential renovation project that involves some changes to an existing loft space. The home is a simple rectangle with gable roof that is stick framed so its not very complex. The owner wants to remove a portion of the loft floor framing to create an overlook from the loft down...
  4. TRAK.Structural

    Beam Reinforcement Calculation

    All the centroids and neutral axis locations would be in line with each other so I agree with @XR250, really just need enough weld to get load into the new plates.
  5. TRAK.Structural

    Thin stair concrete design

    Maybe check stresses from 2-way bending/yield line analysis. The aspect ratio looks a little square-ish.
  6. TRAK.Structural

    Retaining forces on residential footing stemwall in crawlspace

    I'm not aware of any silver bullets for sliding resistance. Use sliding friction, passive pressures, and perpendicular resisting elements in combination to resist the sliding at the base of the wall. Hopefully you have some decent gravity loads to help with friction. You might also try to...
  7. TRAK.Structural

    Retaining forces on residential footing stemwall in crawlspace

    I would definitely use the floor framing for lateral bracing at the top, add blocking where the framing is parallel to the wall. IRC has tables for CMU size, grouting, and rebar based on retained height. I don't like 4 feet of unbalanced backfill with no grout, but they are built like that...
  8. TRAK.Structural

    Retaining wall repair rec

    Maybe it's possible, but on a wall that already has issues I wouldn't put my seal on a repair scheme like that, just my 2 cents tho.
  9. TRAK.Structural

    Subdivision Work - Pricing

    I'm curious what your deliverable is like @XR250 mentioned. Will the documents state that your scope is limited to the 2 beams and framing for the 1 wall? or are you stamping the entire house plan? Is the rest of the construction intended to meet prescriptive requirements of your jurisdiction?
  10. TRAK.Structural

    Retaining wall repair rec

    For the buttress idea - How are you going to excavate for the new buttress and footing 12' below the existing footing without the whole thing failing in the process??
  11. TRAK.Structural

    Seismic Design Requirements for a Concrete Pier Supporting a steel braced frame or moment frame.

    Wondering if this counts as a vertical discontinuity/irregularity of the LFRS according to ASCE? Would have to check and see if that requires you to do anything additional.
  12. TRAK.Structural

    Residential Load Bearing Wall Removal (A basic task & possibly an ignorant question.)

    There are some detailing considerations. Flush beam vs. dropped beam. If flush, are you cutting through ceiling joists that act as a tension tie for the roof? Proper detailing for disturbed elements with flush beams can sometimes be hairy. I almost always put new foundation supports under the...
  13. TRAK.Structural

    Composite Steel Deck

    I'd probably put a support out there. If nothing else it will help to firm it up during construction. Maybe you could use a steel angle (similar to a pour stop but more substantial).
  14. TRAK.Structural

    Legal Thoughts on Stamping Plans

    This is similar to how I would handle a residential plan set from an arch/designer. Typically I would use a blank plan layout as a background on my own sheets and add all the structural info needed (framing sizes, notes, details, etc.) And yes, clearly define what my seal covers.
  15. TRAK.Structural

    Multi-storey steel column bracing

    What will the connection look like where you change column sizes? Not sure what type of structure this is, but I've typically seen the column splices placed a few feet above the floor level. If you think the out of plane shear in the beam/col shear connections is too much for that connection...
  16. TRAK.Structural

    HUD Foundation Inspections

    I do these from time to time. Most of the time they don't meet the requirements and I stand my ground about what needs fixing. If you are familiar enough with the guidelines, get paid in advance, and don't mind crawling around in a dirty space below the homes than it's fairly easy work.
  17. TRAK.Structural

    Stacked Stone/Rubble Foundation

    Good points. Wouldn't repointing have the same effect though, considering that matching the existing mortar is not realistically going to happen?
  18. TRAK.Structural

    IEBC Allowable 5% Gravity Increase on Total Load or Load Type?

    I would still interpret it as meaning a maximum of 5% increase in the total load effect.
  19. TRAK.Structural

    seismic supports straddling building expansion joint

    I would think the ducting should have specific joints that can accommodate the expected movement across the bldg exp joint where the duct is perp to the bldg joint. I would avoid having the supports straddle the exp joint like shown in the middle of your plan layout. Can you use and inverted...
  20. TRAK.Structural

    In the ACI 350-20 Code, what is the purpose of the additional rebar spacing checks found in Section 11.9.9.5

    I haven't used this version of ACI 350 before, but the first part of section 11.9.9.5 reads as this is only for shear reinforcement? Only in unusual circumstances have I used reinforcing for shear in concrete water bearing structures; the concrete thickness itself can be sized to handle the...

Part and Inventory Search

Back
Top