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  1. WoodDesignCat

    Removal of "top flange and web" from beam with small truss above

    My company wants to re-orientate the vacuum lift rail shown in the attached picture, where we'd have to cut off the sloped members above the main steel beam, which acts as the rail. I'm planning on checking the remaining section for stiffness and strength and specifying minimum support lengths...
  2. WoodDesignCat

    Responsibility of Product Allowable Design values for an Evaluation Report, liability

    I'm considering working for a company (incorporated) who wishes to an Evaluation Report from IAPMO, a UES report (the same level of accreditation as an ICC-ES report, but a lesser know reporting agency). I would be doing the taking test reports from certified 3rd party labs, using acceptance...
  3. WoodDesignCat

    Can I Design and Stamp my Own House? Follow-up

    Thanks for the replies, it sounds like I'm worried about a non-issue, but I will double check with the bank when I get to that point.
  4. WoodDesignCat

    Can I Design and Stamp my Own House? Follow-up

    thread765-416915 I see this has already been asked, but I have some more questions on specifics. Can I design and stamp my own house to be built, if I don't own the land or have the money myself for the materials? I'm looking into a buy to build loan and would still have to have a mortgage. The...
  5. WoodDesignCat

    Buckling Capacity by Newmark's Numerical Procedures

    Thanks for all of the responses already. BAretired, thanks for scanning those, I uploaded them to a dropbox file that I labeled to not delete, so hopefully this is a more permanent link to share them by. I'm not sure a better way to make files available online long term without hosting a...
  6. WoodDesignCat

    Buckling Capacity by Newmark's Numerical Procedures

    thread507-267603 thread507-278129 I'm trying to learn to use Newmark's Numerical Procedures for calculating buckling capacity of a column with varying cross section. In the thread507-267603 user BAretired said he posted some notes, but it looks like the were removed when the thread was closed...
  7. WoodDesignCat

    (Can we/ should we/ do we need to) require EOR signoff on shop drawings.

    It sounds like we should not be accepting plans that are not well defined, even if they are approved, and shouldn't be accepting contractor review of engineering plans. Do you know of any codes that make this more clear, or things that I can reference to give this opinion more weight?
  8. WoodDesignCat

    (Can we/ should we/ do we need to) require EOR signoff on shop drawings.

    Thank you for the response JAE. "Option 2 - Dictated Design - Minimal Changes" is what we try to do. I added notes to your steps below to give you a better idea of what we do. My main question is on third to last and the last point Option 2 - Dictated Design - Minimal Changes The EOR performs...
  9. WoodDesignCat

    Simpson Strongwall

    You should be able to, but the connections from wall to beam and beam to below will be entirely up to you and you need to design holdown connections with an over-strength factor when designing seismic loads. This thread seems like it dives into what you need to do for that...
  10. WoodDesignCat

    (Can we/ should we/ do we need to) require EOR signoff on shop drawings.

    I work for a company that prefabricates structural wall panels (all the walls in building, shear walls, load-bearing walls, non-load-bearing walls). I think that the EOR should be reviewing our shop drawings to ensure that our panels will match their design intent, but on a few jobs the engineer...
  11. WoodDesignCat

    Shop Drawing Review

    I work for a company that prefabricates structural wall panels (all the walls in building, shear walls, load-bearing walls, non-load-bearing walls). I think that the EOR should be reviewing our shop drawings to ensure that our panels will match their design intent, but on a few jobs the engineer...
  12. WoodDesignCat

    Engineered Lumber Deflection including Shear Modulus

    @Shotzie, That's what I'm wondering as well. If no one else has better insight I will try to run some examples with and without shear deflection and see how much it changes the deflection, when I have some free time.
  13. WoodDesignCat

    Engineered Lumber Deflection including Shear Modulus

    Does anyone here include the shear modulus in their beam deflection calculations? I've worked at two different small structural engineering firms and as far as I know no one included shear deflections in beam calculations. Also the design software we used didn't include a way to check shear...
  14. WoodDesignCat

    Seismic load, horizontal and vertical

    Doing residential design the California Bay area I have checked vertical seismic forces (and vertical wind forces) on a number of jobs. In almost every case I have done the load combinations included dead load, live load, and vertical seismic/wind loads have been smaller or about the same as the...
  15. WoodDesignCat

    Destructive Testing Steel, no safety factor.

    @JAE, I think you are saying to design my metal parts of the assemblies for the ASD load, using the standard AISC safety factor, Ω. Let me run through an example and see if that still makes sense to you. Let's say I'm designing a shearwall that has a built in holdown, and the built in holdown...
  16. WoodDesignCat

    Destructive Testing Steel, no safety factor.

    Most of my experience is from building design, where there are well defined safety factors and design stresses to use for steel based on ASD and LRFD design forces. After a career change I am now creating in house destructive tests for wood components, which sometimes include metal plates and...
  17. WoodDesignCat

    Incising factor for fastener capacity

    Why isn't there an incising adjustment factor for mechanical connections in the NDS? Or are there and I just can't find them? If the parallel to grain crushing value needs to be multiplied by 0.8 for incised wood needs to be multiplied by 0.8, it seems like faster bearing parralel to grain would...
  18. WoodDesignCat

    Hello, I am looking to calculate th

    See ASCE 7-10 Figure 30.7-2. It says for the soffit of an overhang the pressure can be assumed the same as the wall pressure below.
  19. WoodDesignCat

    Archtect Stamping Structural Drawings

    In California I assumed architects had the same restrictions as unlicensed individuals for structural plans, but apparently they "may design any building of any type EXCEPT the structural portion of a hospital." as sandman21 stated. http://www.bpelsg.ca.gov/pubs/building_design_auth.pdf . Does...
  20. WoodDesignCat

    Flood Resistant Design

    hokie66 I found the section that defines to what extent you cannot worsen flooding. ASCE24 section 2.2 Development in Floodways Structures and fill shall not be constructed or placed in floodway areas unless it is demonstrated that those structures and fill will not, during the design flood (1)...

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