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...
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.)
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...
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...
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...
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.
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...
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...
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?
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...
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...
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...
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...
OK, here is my "Simple Pumping Station Model". I had to take my most recent version and delete company logos so I could share it here. I built this model long before I joined my current company, so I'm free to share it. It's just that the last time I shared it was internally, and I had added...
Yes there is. Set up a time period simulation where time doesn't matter. That is, set up demand patterns that alternate the flows and/or set up valves that open and close at different times via rules. I do this a lot for moving fire flows around a network and for developing systems curves for...
