H gives wrong units. Pi gives correct units.
USACE EM-1110-2-2502 1999 uses pi.
US Steel sheet pile manual 1984 uses pi citing Teng 1962.
But Teng 1962 actually has different equation based on 2q/pi but with different sines and cosines. Not sure if can rearrange to match your/US Steel equation...
@RWW0002 What do people (non engineers) do with load information? And if they can do something useful with it why can't they understand ULS? Or reframe as why trust them to use load info correctly if ULS is beyond them?
But "ULS" is really limit state design. Serviceability loads are part of it...
I have looked up 2012 AASHTO. It used standard Davisson method for fixity depth wihich is probably same as Hturkak's book. Also says to consider pile head fixity for unbraced length so maybe doesn't do direct analysis always. Didn't read analysis/design section to get to bottom of that. But K...
@Cosmos88 Need some details to provide specific answer otherwise have to be general to cover all bases. Cross section, loading, soil type and pile embedment length.
Depth to fixity that Bridgesmeit and Hturkak posted are usually for compression stability and for analysis of bending moments. I...
@BridgeSmith AASHTO and @HTURKAK's aren't
equivalent. AASHTO method needs full pile length analysed with springs or finite element like Plaxis. Hturkak method just needs one fixed node below ground to approximate soil structure interaction. AASHTO also calls it fixity when no bending moment...
Don't exactly understand your question. hopefully one of these is answer.
"If so, would we not need to take the lever arm about the center of gravity of the triangle (2/3 * c) and the area of the triangle as 1/2 of the rectangular area?"
Yes. ULS calculation where concrete stress is assumed...
@TheFeds Yes that Australian example is exactly it. That's where I am. Company doesn't keep our policy where client facing people can get it. Won't go out by mistake. Certificate of currency is accepted by 95%. Only occasional troublemakers want more and they simply can't have it. Nothing we can...
I wouldn't at least without double checking. Might be regional but I've been warned our policy is void if sent out. One of the policy terms. Maybe also a problem with clauses requiring you to minimise damages. Giving out insurance terms lets clients tailor claims to get max out of insurer.
@human909 Ok would have to see details. Sounds like lots of variables interacting. First two with hogging but full fixity show 9200 effective with bearings is quite different from 9200 idealised. Same for last two. Is three stiffeners giving warping restraint or changing bending moments? Any...
@human909 I don't understand your results. Not clear what axis is being fixed and which give hogging moment. All cases? Just first two? What is pinned @ centre in the last one?
Sounds like you are comparing F restraints to P restraints. Only significant in AS4100 for short beams not long ones.
@Tomfh Thanks for link to engineers vs sheep. Almost same analysis including beam size. I shouldn't have bothered.
I still think it's misworded in AS4100. Seems that people on or around code committee didn't think it worked with moment reversal when written but no question it is correct for...
@Tomfh @human909 Thanks for updated Portal Frame Design content. I thought codes changes weren't enough to justify new copy. Maybe will have to or maybe not. See below.
@human909 Reason for 400kNm hogging moments at supports is because I applied moment there instead of fixed supports to get...
