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  1. fel3

    Titan sub noise heard on board support ship.

    He was excellent.
  2. fel3

    Titan sub noise heard on board support ship.

    Regarding compartmentalization: in the late 1980s/early 1990s I worked with a professional land surveyor who was an adherent of Religious Science, which (as I understand it) believes that the physical world is an illusion. At the time, we had an AutoCAD drafter who had Bachelor's Degrees in...
  3. fel3

    How much force to lift a beam

    This post belongs in the Student section: https://www.eng-tips.com/forums/student-engineer-general-discussion.1630/ Hint: what is the weight or unit weight of the beam and are there any other loads attached to the beam?
  4. fel3

    Viable masters degree for me?

    I used to work with a guy, now long since retired, who earned three simultaneous bachelor's degrees (mathematics, economics, and physics) from an Ivy league school. He then earned a masters in civil engineering from some other big-name school. He had a long and successful career as a civil...
  5. fel3

    Design of Asphalt Pavement without Subbase

    To eliminate AS in the spreadsheet, just enter an R-value of 0 (zero) in cell B6. If you want to eliminate AB, enter a zero in cell B5. (I need to add more instructions to the spreadsheet, that's for sure.)
  6. fel3

    Design of Asphalt Pavement without Subbase

    Here are a couple of calculation tools that I developed for AC pavement design per the Caltrans Method. I have included an Excel spreadsheet template, a Mathcad Prime 9.0 worksheet template, and a .pdf printout of the Mathcad worksheet in case you don't have Mathcad. I first built the...
  7. fel3

    Design of Asphalt Pavement without Subbase

    If the traffic volumes are small and/or the native soils are good, then there is no reason to use a subbase layer. AC + AB will be more than strong enough. In fact, Caltrans has an option for AC only designs. This is all covered in the Caltrans Highway Design Manual Chapter 630, Flexible...
  8. fel3

    What should I be doing in high school to prepare for going into engineering in uni?

    To follow up Ron247's post, specifically his bullet about communication skills, the most important non-math, non-science course that I took in high school was Forensics (i.e. public speaking). I am a typical engineer type: shy, introverted, and (back then) afraid of public speaking. However...
  9. fel3

    Tanker on fire Northsea

    More likely, a Freudian Ship. :cool:
  10. fel3

    Air valve on falling main

    Why not put a manhole at the high point and use open-channel flow downstream of that? This would also simplify the design of the lift station because the discharge condition would always be the same.
  11. fel3

    Common mistakes by architects

    I tell the younger engineers that I work with, "We prepare plans and specifications for our own amusement. The contractor does whatever he damned well pleases." BTW, my involvement with architects has been as the site civil engineer, rather than as the structural engineer. I have worked with...
  12. fel3

    The way to get old version API 650 (7th or 8th)??

    Finally! The automatic paper feeder for copying and scanning kept jamming, but that's fixed now. There's nothing that duct tape, WD-40, and a 10-lb sledgehammer can't fix. :cool: My paper copy of this document was already about a third generation xerox. I received it from a client that I...
  13. fel3

    The way to get old version API 650 (7th or 8th)??

    Our copies/scanner has a problem, so I will have to try again tomorrow after it gets fixed.
  14. fel3

    The way to get old version API 650 (7th or 8th)??

    You are welcome. I will scan it this evening and post it when I am done.
  15. fel3

    The way to get old version API 650 (7th or 8th)??

    I have paper copies of the 7th Edition (Nov. 1980) and Revision 1 of the 7th Edition (Feb. 1984) that I can scan for you later today. Do you have a preference?
  16. fel3

    minimum cover for schedule 80 pvc

    Unless you can find a good set of design tables, which I have seen for some other types of pipe, you will need to calculate it. In addition to the traffic loading, the design depends on the pipe diameter, the weight of soil, the trench width, type of and amount of compaction for pipe bedding...
  17. fel3

    BEST (OR FREE) POTABLE WATER SYSTEM MODELING SOFTWARE?

    I use EPANET several times each year. The most recent version available through the Enviornmental Protection Agency is 2.2.0 (see https://www.epa.gov/water-research/epanet). You can find information about the proposed (but apparently stalled) open source project to enhance EPANET here...
  18. fel3

    OSHA Guardrail Wood Grading

    "lb-ft" may be a corruption of "lbf" for pound-force, which is the numerator in psi.
  19. fel3

    Minimum horizontal distance between water/domestic lateral lines for townhouse project in California

    kyapp88… Have you asked the City? That's the place to start. The City's requirements must, at a minimum, conform to state law, but they could have more restrictive requirements. I did a quick search on Sunnyvale's website and did not find anything relevant, but they must have something in...
  20. fel3

    ACI 318-19 Section 17.10 - Anchor Bolt Design for Seismic Site Class C

    ACI 355.3R-11, "Guide for Design of Anchorage to Concrete: Examples Using ACI 318 Appendix D," has quite a few example calcs based on ACI 318-11. I didn't find an updated version for ACI 318-19 or later, but you may still find this document to be useful. The example calcs are very well...

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