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  1. Bobber1

    Personal (work related) notes

    And if they search your computer, my experience is that they cart it away and you may not see it for weeks to months. Can you do without for this long? What if you stored everything on a "cloud" service? Then they could search your records without taking the computer.
  2. Bobber1

    Heave Foundation Design

    A 150 lb man standing on a 3.5" long piece of 2x4 exerts a soil bearing pressure of 1.76 ksf. Just to get a feel for what you've got.
  3. Bobber1

    Meeting Project Budgets

    When I was a project manager, my problem was a huge department of engineers "wasting" budget on my project. I had a very large engineering aid working for me. I would send him around to "interview" the engineers when they charged to my job. It was just enough of an intimidation that people no...
  4. Bobber1

    Independent or integral wingwall at bridge abutment

    Agree with Lobsta. With detached wingwalls, I usually detail some kind of deep architectural reveal so the wingwall movement relative to the abutment wall is not visibly apparant.
  5. Bobber1

    Most common fÆm (masonry)

    In Southern California, CMU construction is very common. We conservatively use 1500 psi for most work but have no problem with up to 3250 psi when necessary. We always talk with CMU suppliers when going to the higher strengths. Today, just about all masonry in SoCal requires special...
  6. Bobber1

    Boring location and amount of borings

    Before I answer this, how many credits will I receive?
  7. Bobber1

    foundation of a tower

    Right now we're designing a tower foundation using micro piles because of the extreme uplift.
  8. Bobber1

    Concrete pull out check

    I through-bolt whenever I can to avoid Appendix D entirely.
  9. Bobber1

    Stainless Steel Grill

    I suggest designing it as a solid surface if there is any likelyhood that someone may erect a sign or similar on it.
  10. Bobber1

    Simplicity Approaching Functional Perfection

    An older engineer in our office asked me last week to check his hand prepared moment distribution analysis of a frame. I used the computer and his values were accurate to one decimal.
  11. Bobber1

    14th Ed. Steel Manual

    Never mind the Manual, when are they going to publish the errata.
  12. Bobber1

    Adding cover plates - weld under tension

    If the bridge is not experiencing live load during the repairs, the stress in the beam is likely to be low relative to the allowable stress of the beam with full dead and live load.
  13. Bobber1

    MRI Equipment - Elevated Slab

    I have moved heavy machinery using air bearings. Pick an air bearing that is large enough to distribute the load. The nice thing is you can control the loads to your floor system by varying the air pressure.
  14. Bobber1

    Wind or Snow load on Grated surface

    I recommend considering possible future use. Seems people always decide there's too much breeze or sunshine coming through this thing, lets cover it with something. I saw a baseball backstop fence blow over after a big advertizing banner was installed on it.
  15. Bobber1

    Bolts Loosening and Coming Off

    If they are A325 or A490 bolts and they have loosened, I don't believe you can pretension them because they have likely lost their required factory applied coating. They will have to be replaced with new bolts in sealed containers if they are to be pretensioned.
  16. Bobber1

    complete timber failure

    Vertically mounted traffic barriers/energy absorbers? I've seen big energy absorbers mounted on the backs of highway maintenance trucks used to protect the workers.
  17. Bobber1

    Measure round corner

    Get a drafting circle template and cut it up.
  18. Bobber1

    Structural Design of Pools

    Make sure your drainage is good. Seeing an entire swimming pool floating in an undrained pit is an awsome sight! Use lots of rebar to keep your cracks tight.
  19. Bobber1

    want to learn CAD

    I would die without using Cad in my engineering. I used to draw details by hand on a quad sheet, give it to a drafter, who would attempt to draw it more accurately to scale and nothing fit properly. Now, I have learned to bang out the main parts of the detail to scale so I know it "works"...
  20. Bobber1

    Splice and jetting in precast piles

    I've seen keyed steel plates embedded in the piles at the splice locations. The plates are welded together and have central holes for the jetting. Bob

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