Shear Flow Design Example | College and PE Exam Studying

Рет қаралды 6,211

Жыл бұрын

Finally a straight forward shear flow design example with info to help you study and learn structural engineering basics. perfect for structural engineers, civil engineers, mechanical engineers, and many others!
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Disclaimers: Richard Racz, P.E. does not hold the title "structural engineer". Any claim of it in the videos or descriptions is unintentional and is superseded by the title "civil engineer" in the states of MA and OR.
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Пікірлер: 40

@Kestava_Engineering Жыл бұрын

Look at you learning engineering during the holidays - go you!

@Rheynez 3 ай бұрын

thanks man

@SO-th8gc Жыл бұрын

I appreciate your tutorials man. But the background music should've been kept a little low...helps in focusing more on the processes 😅

@Kestava_Engineering Жыл бұрын

dang it - i thought the same thing, but thought it was just me. I will lower it next time!

@Kestava_Engineering Жыл бұрын

thanks for letting me know

@interestingamerican3100 Жыл бұрын

Thanks brother! Commenting for the algorithm.

@Kestava_Engineering Жыл бұрын

your a real one! thank you!

@kevinscott524 Жыл бұрын

Great video! Thanks for the clear explanation of both concepts and calculations.

@MrScreaney 2 ай бұрын

Great example and very practical too!

@Kestava_Engineering 2 ай бұрын

Glad it was helpful!

@oldpretoriagmailcom Жыл бұрын

shear flow??? didn't see this one coming. sweet!

@Kestava_Engineering Жыл бұрын

got you Yoha!

@Szhihihihihihi Жыл бұрын

Thanks !

@heshamelbehy1577 Жыл бұрын

Great explanation, thanks for sharing!

@Kestava_Engineering Жыл бұрын

Glad you enjoyed it!

@chrisaprile813 Жыл бұрын

Very well explained - step by step.

@Kestava_Engineering Жыл бұрын

Glad you liked it!

@garretthope7427 Жыл бұрын

Thanks for the content. I’ve been subscribed for a while now and I have my PE Civil: Structural at the end of the year. #kpff

@Kestava_Engineering Жыл бұрын

shout out KPFF! thanks for stopping in Garrett

@SouvikCivil 4 ай бұрын

Never seen this method before in any text books. It is so easy to follow and very interesting! Can you please refer a textbook that used this method. Thanks!

@stevenauyeung1410 Жыл бұрын

Finally a video explaining this clearly and is straight forward. Nice haircut btw

@Kestava_Engineering Жыл бұрын

always trying to keep the hair perfect for the Team

@mattwhite7901 10 ай бұрын

Can the shear flow formula VQ/I be used to calculate the shear flow on the weld of 1.5”x1.5” bar to the top of the flange if it is discontinuous with a gap?

@oldpretoriagmailcom Жыл бұрын

I love this method. not trying to be that guy but........what if you were going to add two plates? would this method work (i.e. thinking about Q from the plates perspective) iteratively? So do one plate, then the next

@dontransue9843 Жыл бұрын

Is this the parallel axis theorom applied to the I Mom of Inertia)? Pardon the question if you stated this/.

@Kestava_Engineering Жыл бұрын

Yes it is - I believe I forgot to state this. I+Ad^2

@kylegirouard9335 Жыл бұрын

I have to ask, what software/application are you using. I think this could be useful at the office rather then using pen and paper. Thanks for the great video!

@Kestava_Engineering Жыл бұрын

I using Microsoft one note with a ThinkPad touch screen. that's it! I am starting to use this set up at work as well and really liking it

@IndianWarriors Жыл бұрын

Cool haircut

@SirPoofyPants Жыл бұрын

Is this just the weld required to transfer vertical shear in the built up shape or is this the same approach used for confirming moment capacity of the built up shape?

@Kestava_Engineering Жыл бұрын

you know... im not sure. I know this analysis determines what connection capacity is needed to sufficiently support shear stresses throughout the built up shape but dont know if it confirms moment capacity to the built up shape. I would assume yes, as you typically always check shear flow using the maximum shear demand on your system, which relates to your max moment demand. Maybe you can give me your understanding?? great question! Although - thinking of WF beams I kind of change my mind as primarily the shear stress is local to the web and a strong connection to the flanges possibly wouldnt be required to achieve the members moment capacity. hmmmm

@SirPoofyPants Жыл бұрын

@@Kestava_Engineering I've seen one example where you have to provide enough weld to fully = AsFy of either shape so that it can fully develop tension/compression capacity before weld failure, but I always feel that's less efficient. I occasionally have to reinforce an existing W-beam with a WT to the bottom and can never find a good example to follow... There's also the question of how differing materials of steel affect the situation too

@MARV3L3DGAM3R 10 ай бұрын

How do we know to use the shear flow equation from the problem statement? Is it because there is a connection?

@Kestava_Engineering 10 ай бұрын

when adding 2 shapes together to create one, and then put that member in bending, the stresses are shared through the combined member through shear flow.

@noahhough285 Жыл бұрын

Hey Rich, I am in Ohio. Just curious, do you have to pass the PE exam before taking the SE exam?

@Kestava_Engineering Жыл бұрын

Its different state to state but I believe there are states where you can just jump straight to taking the SE, and then need to meet a few other requirements such as experience under an SE.

@WG-ft6tz 7 ай бұрын

Hello, thank you for the detailed description. Wouldn't the first step include verifying that the LRFD shear capacity of a W18x50 is 192 kips? Well exceeding the max design demand of 40 kips. Reviewing the answers, it may seem obvious that the intent is to check shear flow. However suppose option (D) read 'the plate is not required ' Some engineers would be inclined to check the shear capacity first before anything else, noting that the question doesn't specifically state residual shear.