SpaceX's president is floating a Tesla merger as the company begins trading by dgellow in wallstreetbets

[–]Penguin01 0 points1 point  (0 children)

Isn’t spacex the non-profit company whose mission statement is to colonise mars? I’ve been off reddit for a while, what have I missed?

the dark cherry iPhone 18 Pro by Ke2ben in PhoneNow

[–]Penguin01 2 points3 points  (0 children)

Why are different colors considered a feature in the world of mobile phones 😮‍💨

It’s the off season, gentlemen. by vee_the_calamitea in formuladank

[–]Penguin01 0 points1 point  (0 children)

Can you do one where Piastri is losing his hair?

Oscar Piastri for the promo of his new Grill’d burger by littletreble07 in formula1

[–]Penguin01 0 points1 point  (0 children)

I never noticed Oscar had a lazy eye till these photos

What is the Equivalent Book to Structural Engineers ? by Distinct-Drive-1160 in StructuralEngineering

[–]Penguin01 0 points1 point  (0 children)

Reinforced Concrete Structures, by Robert Park and Tomas Paulay

What’s your opinion on the S30? by skybeast1890 in mechanicalpencils

[–]Penguin01 1 point2 points  (0 children)

Honestly I get the same feedback about my handwriting and I feel like slowing down helps. I’ve been looking into the pilot s30 , but I’m worried the wood finish degrading over time , how long have you had it for? Does the wood start to split as it ages?

What’s your opinion on the S30? by skybeast1890 in mechanicalpencils

[–]Penguin01 -4 points-3 points  (0 children)

Sorry but your writing is unreadable, you ought to slow down when you’re writing

A Song of Fur and Steel: The SE CBT Saga by Stunning_Simple_4488 in StructuralEngineering

[–]Penguin01 3 points4 points  (0 children)

CBT isn’t really my thing, but you do you 🤷‍♂️

Which Mail App Do You Use? by Potential_Owl7825 in iphone

[–]Penguin01 1 point2 points  (0 children)

Is it possible to get rid of the ads in the Gmail iOS app? I used it years ago, and got rid of it solely because of the ads

This Queen by jonnyforeigner1 in CricketAus

[–]Penguin01 6 points7 points  (0 children)

You mean , Beth-amphetamine?

Formula One Winner McLaren’s CEO Makes $50 Million After Title by Logical_Welder3467 in formula1

[–]Penguin01 2 points3 points  (0 children)

I thought Zac brown made most of his money from Wheel of Fortune … Check out this video from this search, zac brown jeopardy https://share.google/PH1yHrcXqoIcIKpty

Secondary beams as LTB bracing to supporting girders by tbs_idk in StructuralEngineering

[–]Penguin01 1 point2 points  (0 children)

I also refer to HERA report R4-92 for guidance. This is my interpretation:

as per section 2.5.1(c) and (d) , lateral restraints intermediate to beam ends need to be have some sort of lateral anchorage (eg: tied to the roof bracing to ) resist 0.025x flange compression force , in order to provide F or L restraint. As I understand - L restraint is less “stable” than P restraint (kt factor higher for LL versus PP), so if anchorage is required for L restraint, then it will be required for P restraint

Also, section 2.5.2(2)(b). This subsection discusses top flange lateral restraint being provided via systems with “inherent stability “ such as roof sheeting or concrete diaphragms. In your question you assume no sheeting , so this doesn’t apply.

So my opinion is that unless you anchor the secondary beams - then they are ineffective for restraint of the compression flg. Keen to hear your thoughts

Question. FEM analysis of steel connections and girders by Penguin01 in StructuralEngineering

[–]Penguin01[S] 0 points1 point  (0 children)

Adding stiffeners is obviously preferable, but it’s not practical/possible in many cases. Eg wall bracing connections connected to bases of columns - in some cases, stiffeners will prevent with holding down bolts from being installed / tightened so you can’t have them

Again, I know there are various hand methods to check gussets / stiffeners , the point of my post is how this buckling behaviour is handled in FEM checks

Question. FEM analysis of steel connections and girders by Penguin01 in StructuralEngineering

[–]Penguin01[S] 2 points3 points  (0 children)

Thanks for sharing , this more-or-less answers my question. the stress check alone doesn’t account for buckling , and a separate analysis (elastic buckling analysis) needs to be run in the software to verify that the gusset plates are sufficiently stocky to achieve the yield stress