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  • Users: Bammer25
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  1. Bammer25

    Supplemental Reinforcing

    I have done many, many anchorage calcs, but they have all been fairly simple on a flat slab, only dealing with edge distances and such. I am designing a pedestal to support large industrial equipment. 70 kip uplift and 8 kip shear. 2 foot tall pedestal to be designed by me (plan dimensions and...
  2. Bammer25

    Squash blocks detailing for concentrated loads on trussed floors

    Hey guys Curious how you detail out carrying large (for residential sake) point loads from roofs or lvls above when your floors are trussed. Adding a squash block is pretty simple and they will just block it out, but when you are relying on a 6x6 or PSL to carry the vertical load you’re just...
  3. Bammer25

    Valley rafter intersecting trusses

    Doing an addition. Existing house has roof trusses. I completed the design while my mind was in stick build mode. There are a couple valleys that I designed as LVLs from the new portion of the house that will break through existing trusses. Is there a standard connection you guys use? I...
  4. Bammer25

    Ridge beams and roof pitch

    Silly question but do you guys take into account pitch when designing a ridge beam (no rafter ties or collar ties). I typically just look at it as a beam with tributary area halfway between rudge and bearing walls. Am I killing my customers when I have a higher pitched roof or just being...
  5. Bammer25

    Cold Formed Steel Stage

    Have a client wanting a cold formed steel stage in a commercial building. No wood for fire protection reasons. Anyway, I don't do a ton of work with this stuff. No seismic or wind so very straight forward, but my question is about the detailing. The stage will be semi-circular in plan view. Can...
  6. Bammer25

    Question regarding aluminum design manual 2020

    I hate this code but have to use it for this case. Section H2.2 for torsion says the torsional strength is Fs*C where C is the torsional shear constant (with no context). I immediately think in terms of inches to the fourth power, but that gives a torsion of lbf*ft^2 which is not correct. Does...
  7. Bammer25

    28/12 Roof A Frame Questions

    Haven't done a lot with these. Just wanted to ask a few elementary questions to make sure I wasn't missing anything big. Do you typically have a ridge board as a nailer and just cut the I-Joists (I am assuming I joists rafters) as required or do you like to see straps/hangers? I am assuming...
  8. Bammer25

    Flowable fill or 911?

    Had a client that had a basement wall badly failing. We built some false walls and rebuilt the wall. No issues As the contractor was waterproofing the wall he figured he would go ahead and make sure the rest of that wall (not failing) had gravel/drain pipe. Well now the garage slab is pouring...
  9. Bammer25

    Hips, valleys and load points

    Designing a house with a complex roof. Such fun. Anyway, I am constantly arguing with myself over where we need load points at the connections of hips, valleys, and ridges. I know a lot of it relies on whether or not you have exterior wall thrust. So if I have rafter ties and collar ties I...
  10. Bammer25

    Georgrid in gravel under slabs in very high basements?

    I do a lot of critical slope foundations where you have a typical 10’ front wall and then a basement where the grade falls off pretty quickly. You end up with anywhere from a daylight rear wall (ideally) or a worst case of 15 feet or more of gravel under the slab up against the rear and side...
  11. Bammer25

    Steel column to CMU considerations

    Seems pretty straight forward but I just want to make sure I’m not overlooking anything. Have some pretty heavy reactions (100 Kip) coming down through tube steel columns and due to grade falling off I will need to land on 12” cmu stem walls (more likely I’ll make pilasters at load points)...
  12. Bammer25

    Elevated concrete stairs

    About done designing a simple 20-foot connector between two commercial buildings. Client wanted concrete in span deck on steel beams and posts. No big deal. I don't have a ton of experience with concrete stairs, however. The connector makes a 90 degree turn and the stairs come in to connect two...
  13. Bammer25

    Guidance on diaphragm front wall with very large windows

    I have not looked too deeply into this before for residential construction. A client is using very large windows (see attachment) in series on top of each other. I am doing a simple deck design for them and they asked me to look into this. I know the basics that the wall sheathing is my...
  14. Bammer25

    Rear deck kicker support

    Has anyone tried eliminating the rear posts and using a 45 degree kicker back to block wall (or footer). This is a steep hill and my client wants to eliminate more footers and piers. Seems pretty simple but I am having a rough time figuring out the best connection. A 6x6 post diagonally...
  15. Bammer25

    6x6 timber beam to cmu wall connection

    How do you guys typically do this? This is a neighborhood entry sign. I have a simple box 40”x40” cmu structure anchored to a concrete foundation they will add stacked stone to. They want a wooden beam cantilevered out to support a sign. Doesn’t seem like your typical Simpson wood connectors...
  16. Bammer25

    Masonry lintel question

    Have a client wanting to open up a basement/crawl space wall on a 3 level structure. The lower level is running bond, reinforced 12" cmu. I have two questions: 1. for loading, I will have distributed load along the beam from dead and live loads above (floors, wall weight, etc). Since the loads...
  17. Bammer25

    Turn CMU block for more depth?

    Has anyone designed a wall to have standard 16x8 block turned 90 degrees to take advantage of a much greater depth to rebar? Only draw back I can think of is how you would run horizontal bar through it
  18. Bammer25

    Max crawl space wall height

    Trying to figure out the best route and most economical route for a steep slope cabin. The builder is getting beat up with buying loads and loads of gravel to fill up under basement slabs on steep slopes. I mentioned he could do a crawl space and lose the slab. How high is too high for a...
  19. Bammer25

    Surcharge load on retaining wall

    Another retaining wall question. I will attach a good sketch. Anyway, fairly straight forward wall, but I have an indoor pool 1 foot away from the edge of wall. Entire area is filled with 57 stone. I know I would take that pool surcharge at the roughly lower half of the wall (where it...
  20. Bammer25

    Couple Timber Connection Questions

    Hi again gents. My extent of timber post design has been limited mostly to decks, so I just use a basic simpson strong tie post base. No big deal. But what about when you have decent loads you want to spread out? I am not seeing a lot out there outside of me just designing a custom base plate...

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