JoelTXCive - do these spec sheets/drawings need a PE stamp in your experience? Even with that note that you add, wouldn't you still have to "engineer" the foundation?
With the EngineersEdge.com calculator that includes the isolated pole factor, and by backing out the P and h values from my total Moment as 333 lbf at 36 ft I get an embedment depth of just over 5 ft for a 24 in diameter foundation.
If I divide the force by 0.6 for a 555 lbf (to cancel out any...
Thanks for confirming my thought process on backing out the force from the moment. I just wasn’t sure, since the non constrained equation uses P and H and the constrained let’s you use M instead.
I've come across a basic program called WinPost made by Archeon. It seems to have the capabilities to calculate this kind of application. Does anyone have any user experience with that?
https://www.engineering-software.com/WinPost-P3.aspx
Aesur - thanks for pointing that out. I missed that in my review of 1806 and 1807. It does help a lot. I think my excel calculations for non-constrained are a little off. I had a hard time breaking down my P and M to fit the non-constrained equation, but the constrained equation seems ok...
jayrod12 - for simplicity's sake I was told they drill it as a straight shaft, so that helps a little. I'm not sure they'd want to go through the extra trouble of a square/cube shape if they could just drill a larger and/or deeper hole. But it's not always about what they want, either [wink]
Thank you for taking the time to find that HTURKAK. I've seen this somewhere recently but I'm not sure how to use it. I'll have to see what I can come up with!
I think both of you are exactly right. The only other thing I thought of was that my moment calculations were too high, but I've picked them apart and I think they're pretty good - albeit slightly conservative.
In my digging, I found this "typical installation" chart that many manufacturers...
I'm a Mechanical engineer but I was asked to look into this for a friend. So far, I've been unable to make any sense of it! I've looked around this forum a lot and haven't found a post directly aimed at this weird ground set foundation sizing.
The scenario is for a 40 ft flag pole that seems to...
Thank you Latexman and Katmar. This has given me much more to investigate and I will be doing a more thorough effort on this since the customer deadline for the information they requested has passed.
Latexman: I'm still pretty far off of your dP calculations, but now at least I know where to shoot for. After fixing the things addressed by previous points in this post, I don't immediately see where I'm going wrong with the Darcy Weisbach method...
Katmar: Thanks for the density check. I wasn't converting it like you said. It looked weird but since it wasn't my most unknown matter I wasn't looking at it closely yet. I will look into the isothermal compressible flow approach. I have seen that brought up but I also still see a lot of the...
Latexman: Thanks, I knew it was something simple like that. I wasn't converting absolute viscosity into lbf-s/ft^2. My resulting Reynolds numbers are almost the same as yours now.
I'm using pipe lengths of 2 feet both upstream and downstream, with one elbow downstream included in the K values...
RVAmeche: I am a PE, my background is mostly I&C but I'm a Mechanical engineer through education. I agree that it isn't acceptable and I'm working on changing it, but the company doesn't seem to want to change things... I'm working on changing my situation.
Latexman: Posting corrected. I'll try...
I am working on calculating the pressure drop in piping upstream and downstream of a PSV, which is new to me. Since my company (very small - I'm the only engineer) has no simulation software or any other software to handle these kinds of calculations, I am using the Darcy-Weisbach formula to...
