How to Design a Weld For TORSIONAL Loads

How to Design a Weld For TORSIONAL Loads | Civil PE Exam Prep

Рет қаралды 6,607

2 жыл бұрын

The Fall Civil Structural PE exam is COMING - Get your practice in!
Codes / Provisions used 👇
AISC - 14th edition | chapter 8
Design of Welded Structures
Civil PE Exam prep with a full step by step weld design example with torsional loads. Example dives into the design of weld sizes under multiple directions of loads and walks through the complexity of the AISC code to make it a little more simple. We get into chapter 8 of the AISC in this weeks PE exam example problem. We also get right to the point on how to calculate your polar moment of inertia FAST. Perfect torsional welding example for new structural engineers in the industry or for those studying for the PE or SE exam.
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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 Any claim of it in the videos or descriptions is unintentional and is superseded by the title "civil engineer" in the states of MA and OR.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: 15

@adelbadiee358 8 ай бұрын

Great video! thank you Kestävä. Please keep up the good work.

@Kestava_Engineering 7 ай бұрын

Thanks, will do!

@connoreshleman5772 Жыл бұрын

I was a welder before becoming an engineer and the key to your question at the end is the groove type/angle. SMAW (stick welding) has a hard time getting to the bottom of a 45 degree groove. If you look at the top of the table it shows SMAW again. Generally speaking SAW produces a more consistent stronger weld because it’s more controlled and often done by a computer controlled machine, but it uses a solid shielding material so it can only be done when the weld is flat. PS most contractors I’ve worked with have switched to FCAW or flux core welding as it increases productivity and you can weld more than 10” at a time, fewer starts and stops.

@sheldon8089 2 жыл бұрын

This is a great video Kestava, very informative, I am a EIT from Canada and I just wanted to say keep up the great work! Cheers

@Kestava_Engineering 2 жыл бұрын

all the way up in the great white noth eh? jk - thank you for your support Sheldon!

@sheldon8089 2 жыл бұрын

@@Kestava_Engineering LOL , yes up in the great north, 10 ply bud ! I watch all your videos and they are awesome I just recently bought the design of welded structures book and it is amazing, I use it along with my CISC steel book at the firm I work for, you were right the book is jammed packed with a bunch of great little nuggets of info. Cheers.

@mohammadfawzysayed5502 2 жыл бұрын

Good job Kestava; One question though, I would have thought you were going to use table 8-9 from the AISC manual, I think it is much faster and should give the same answer, Calculate the resultant force, calculate the applying angle, go to the table and pick the numbers.

@mohamedsow6093 Жыл бұрын

I believe there's a typo in the last formula from the manual; it should be 0.928*D*L. That's why your weld size is too big. the final weld size is 5/16"

@luismendietaelena9332 2 ай бұрын

@@mohamedsow6093 The formula is 0.928 kips/in/(1/16" of leg). Since he calculated all results as k/in, then his weld size is correct.

@luismendietaelena9332 2 ай бұрын

Hi, loving the videos so far. I wanted to ask you, when taking f_v_x you divide Vx/A. Vx is in kips (10kips) and the Area is in in2 (8+8+12 in2) ; however you get k/in as a result. Could you please clarify? Or is just that the formula should be Vx/Length?

@joshuaevans1703 2 жыл бұрын

how do you know point O is the point where the extreme stresses are located?

@ropertmores971 2 жыл бұрын

is this for structural pe or this for Am exam ?

@omar893 2 жыл бұрын

It's a depth problem. I doubt they will bring something that tough in the morning exam.

@ropertmores971 2 жыл бұрын

because i construction pe

@Kestava_Engineering 2 жыл бұрын

like Omar said - this one is a structural depth problem - you wont need to worry if you're not structural specific. you should see this on the construction PE. Cheers!