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 MintJulep 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. volcomrr

    Private Pedestrian Bridge

    Hey all, thank you for the comments! Very good insight and points into having hydro and geo performed. Will discuss with the GC.
  2. volcomrr

    Private Pedestrian Bridge

    I'm in the very early discussions with a GC about designing a pedestrian bridge over a stream. The bridge will serve the members of an HOA for a multifamily complex. My question, and this can even be broadened to private residential bridges: How do you handle hydrology? Given the resent...
  3. volcomrr

    Diaphragm shear vs boundary nailing

    You are correct that I was referring to the boundary nailing for the "applies to the fastener". I went down this same rabbit hole a month ago, just proving to myself that the nails I put in a collector would indeed hit the shear values given in the tables (so I ended up calcing my nail as Z' *...
  4. volcomrr

    Diaphragm shear vs boundary nailing

    The SDPWS table is based on wind and the diaphragm values include the following: Per IBC 2306.2, you get a 1.4 increase for diaphragms, which can apply to the fastener. To convert the table to seismic you need to divide the table values by 1.4. 334plf * 1.4 = 468plf. I can't remember the ESR...
  5. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    Definitely C, there's no way I could meet B with the surrounding terrain. If I had a 26' long girder in a 26'x26' bays, I wouldn't take 2 * L^2/3 for my area on a girder, that would be shooting myself in the foot. I'd use its actual area, and in my case, the bearing wall is 26' long too; so...
  6. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    I had literally typed this same thing out in response to @TheDW in regards to truss manufacturers using MWFRS loads over C&C but backed it out due to not being able to write it elegantly enough. That being said, I agree with this. @Aesur, yes my dead loads are very close to 10psf (just shy of...
  7. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    @TheDW thanks for the link, it's a little mind boggling to read that. Especially hanging their hat on that rational.
  8. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    @lexpatrie, I'm looking at bearing walls only; no lateral walls. But, I do understand what you are saying about the wall effective area vs a stud in the wall effective area. However, even using the bearing wall's effective area, it still lands me with C&C loads.
  9. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    @Jayrod, that is exactly what I was looking for! Thank you! @Aesur, 115mph is vanilla in the middle of North Carolina for Risk Cat II (it's the lowest windspeed in NC and the majority of the US); it definitely ramps up toward the coastline. My bearing walls are 26' on center. For an interior...
  10. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    @lexpatrie: Yes I have done this type of project before, however, not at the mean roof height that I have, nor with a sawtooth roof, hence the higher C&C loads. As for my tributary area to establish the C&C load, I'm using L^2/3, similar to a wall stud; however, the effective area I'm using at...
  11. volcomrr

    Net Uplift Load Path - Wood Framed Apartment

    I'm designing a 4 story wood framed apartment in a vanilla wind zone (i.e. Vult = 115mph). Given the architectural geometry, I'm using a steel framed 2nd floor with slab on metal deck (essentially a podium slab) which supports two additional floors and the roof. The roof happens to be in a...
  12. volcomrr

    Pretensioned Bolts and Assemblies

    All of the responses make complete sense. The fact that the assembly doesn’t open up until the pretension is overcome means no elongation in the bolts until that force is reached. Will share this with the office. Have a nice Thanksgiving.
  13. volcomrr

    Pretensioned Bolts and Assemblies

    thread507-253463 I normally just browse through eng-tips and rarely ever post (this may be my first post!) Looking through threads, I saw one from 8 years ago that touched on a questionable debate we were having in the office last week. The question was, if you have pretensioned bolts...

Part and Inventory Search

Back
Top