Recent content by ChipB

What is it with engineers and bikes? I have a Colnago CT-1 (Campy) A Cannondale Six13 (Campy) A Kona Jake the Snake Cyclocross bike A Catamount MTB 2 Santa Cruz MTBs (one is a 29) Calculators: 1 HP48GX 3 HP48G I HP 49G+ (The buttons suck.) An HP 35s AND...... A Deluxe Edition HP 15C that I...

I agree with Dik and Dave. I had to design a reactor foundation on one of my solar projects. Fiberglass was considered, but in the end, I just designed it as unreinforced concrete. ChipB

Well, crap!!! I didn't realize SlideRuleEra's site was down. SRE, Thanks so much for everything you have contributed!!! I downloaded many valuable publications from your website!!! Now, if I can just remember where I saved them.....

I've called out for these in the past: https://www.griptite.com/foundation-repair-products/wall-anchor-system/ They engineer it and install it.

Still with the same company. Just changed names/owners. In Greenville 3 days/wk. Remote the other 2 days.

BAretired and JedClampett, Thanks! You guys are always great!

Approximately 9 feet at the highest. Supporting a parking lot.

I have an upcoming project where the face of the CMU in a segmental retaining wall has degraded. In one section, you can see the interlocking pin for the CMU and the gravel is slightly coming through. I suspect the freeze\thaw cycles as the main culprit in the degradation of the materials. The...

Long ago.... The load combination used to be 0.9DL + 1.5WL for the 1.5 factor of safety. The thought behind the 0.9DL, is, we, as engineers, may put a little too much load into the DL so it was reduced by 10% So..... ASD load combination of 0.6DL + 1.0WL is really: (2/3)(0.9DL + 1.5WL) => 0.6DL...

Nice catch, NJ92!

Well, it's not a confidential client, so I assume I can share my calculations. See attached. I hope it helps.https://files.engineering.com/getfile.aspx?folder=a04f86e3-71fc-4219-bfd4-566547264cd2&file=ARBORETUM_CALCS.pdf

FLCraneBuilder, Wow! You've helped me a lot. Or...… You've hurt me a lot... LOL Thank you very much!!! Chip

retired13, Thanks! The 1st Edition was the most difficult to get. I'd see them on eBay for hundreds of dollars. I went to powellsbooks.com, and looked for it. Of course they didn't have it, but there was a button to "Notify me when it came available." So I clicked it. It took a few months, but...

Ooooooooo! I do have a couple of copies of the Bethlehem Steel Manual, at home in my "Geek Library". I also house AISC Steel Manuals editions 1 through 9, because I am such a geek. Thanks guys!

O.K. This is a little bit embarrassing...…. In my 25 years of structural engineering, I have never had to call out a crane rail on a drawing. Do I just say ASCE 70 CRANE RAIL? Or is there a standard for calling them out? Thanks in advance.