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  1. DETstru

    Camber in Steel cantilever beam

    canwesteng is right. Camber does nothing for you. Don't bother. IBC 2403.3 covers vertical glazing supports but you can infer that the same applies to your horizontal glazing. Requires supports to deflect no more than L/175 or 3/4". I would use L/360 at the most though. Given that this is a...
  2. DETstru

    Very high-end residential - structural design fees are challenging/confusing me

    I typically count square feet of elevated structure. SOG doesn't count.
  3. DETstru

    Very high-end residential - structural design fees are challenging/confusing me

    $/SF is not always the best way to set a fee for a single project, but it can be a good way to look at many projects in the same market sector as a whole and help you "gut check" if a fee seems right or not. Is this fee more or less than my average $/SF in this market sector? Is this project...
  4. DETstru

    Very high-end residential - structural design fees are challenging/confusing me

    Well this thread definitely helps me. I felt like I was going crazy when I'd clients told me they got bids half of mine. I don't need to drop my prices, I just need better clients [bigsmile] 8thStreet, 3.5% would be fantastic. Great that you're getting those rates. Very informative. SE2607, I...
  5. DETstru

    Very high-end residential - structural design fees are challenging/confusing me

    XR and pham, If I could get $2+/SF, I'd be in fantastic shape. Very encouraging to hear that you are getting that consistently. When I get even close to $2/SF is when I feel like my time was worth it and I'm able to produce the quality that is deserved on this type of work. I do enjoy doing...
  6. DETstru

    Very high-end residential - structural design fees are challenging/confusing me

    Thanks for the info milkshakelake. I come in pretty similar to you on multifamily residential. I usually get $0.6-$0.9/SF for 3-5 story wood apartment buildings. I also have that type of work pretty dialed (both in calcs and drafting) so my effective hourly rate ends up really good. I do win...
  7. DETstru

    Steel beam supported by a single 2x6 stud

    In case anyone wanted an update on this. My friend eventually got ahold of the actual carpenter who framed the house (not the builder who was running the construction for the whole neighborhood). The carpenter told him that they had ran out of steel posts and were going to install it when they...
  8. DETstru

    Very high-end residential - structural design fees are challenging/confusing me

    For the last 3-4 years I've been taking on very high-end residential structural design and I like the projects for the most part. Decent sized jobs so there's less admin work to do, relatively low-stress structures, and the fees can be good. It probably makes up 15% of my revenue (I'm a 1-person...
  9. DETstru

    Wall Footing Design for Lateral Seismic Forces

    I'd definitely use maybe 10' of the return wall, and it's associated roof DL, to help resist overturning.
  10. DETstru

    Steel beam supported by a single 2x6 stud

    I believe this is the exact situation my friend is in. The developer is building a whole neighborhood somewhere in suburban Michigan. They offer floorplans you can choose from, customize the finishes, sign some kind of contract (and probably pay a deposit?), then buy the house from them when...
  11. DETstru

    Steel beam supported by a single 2x6 stud

    I agree with you that it's fine to attach a steel beam to wood studs. But not like in the photo I posted! If it were 2 trim studs and a king, with a positive attachment from the steel to the studs, I'd be totally fine with it.
  12. DETstru

    Steel beam supported by a single 2x6 stud

    Yea I found this odd too. I agree with you and stated the same to him. But apparently the builder says that the plans are proprietary. I didn't feel like wading into this issue. Not my problem or my forte. Yea like I said in my initial post, the rest of the house seems to be built totally...
  13. DETstru

    Steel beam supported by a single 2x6 stud

    human909, Yea I checked (based on rough dimensions that my friend gave me) and the load works quite comfortably on the stud. For me it's the lack of positive attachment and just being unsettling looking! Also, I work on the west coast, where everything is attached to everything. This house is...
  14. DETstru

    Steel beam supported by a single 2x6 stud

    RontheRedneck and kipfoot, Not sure if you read my full initial post but my friend said that he asked for additional studs to be added (per my instruction) and that the builder said that it was already done correctly. I didn't see the communication between my friend and the builder so I don't...
  15. DETstru

    Steel beam supported by a single 2x6 stud

    A friend asked me to look at his home, currently under construction by a builder. One of those pick-your-floorplan type neighborhoods. He showed me these photos of a steel beam supported by a single 2x6 stud in the basement (walkout basement). The other end of the beam is in a pocket in the...
  16. DETstru

    Elevator lateral guide rail forces

    Hey all, I'm trying to get a rough size for a guide rail support post for an elevator. I don't have elevator info yet. Floor to floor is 26 feet so I'm concerned with meeting the tight deflection limits for a long span. I don't need to fully size the support posts yet. I just want to work out...
  17. DETstru

    Do I need a geotech?

    JAE: ha! Definitely need to design for that. Thanks everyone. I don't do much work this small and am basically doing this as a favor for a good client. Thanks for confirming for me.
  18. DETstru

    Do I need a geotech?

    I'm wondering if the sign structure below is worthy of getting a geotechnical report or if presumptive values in the code (US) are good enough. I guess it's more of a "what will the plan reviewer say" type question, because from a design standpoint I can just make it work with the low...
  19. DETstru

    Strip Footing On Boundary

    Use the slab on grade to balance the rotation. You have your footing, a rigidly attached concrete stem wall, and a slab attached to the top of the stem wall. The slab restrains the rotation via horizontal reaction by friction against the subgrade. All you have to do is make sure to dowel your...

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