How to design a compound section - Structural Engineering

[@lobzangptshering1993]

Thank you for making wonderful videos. I watched lot of your videos. Learning Structural Engineer from Australia

[@heinzrichung]

Thank you Daz, but how to calculate the shear between the steel beam and the steel plate for specifying welding?

[@edwinclement8962]

This is brilliant! I have used 254UCs with plates for cavity walls (either to save on 2 x beams or trying to save head height with a 300UB) but was never confident with sizing the plates. And, never knew about that tedds module. Thanks again Daz, another great video and practical design. Video ideas: raft slab design, timber racking checks, windpost design, roof truss design.

[@Vudung168]

How I can find music background you used in the video? I love your design playlist

[@EverydayDazz]

Hi, I subscribe to epidemic sound and that allows you to download and use their music

[@mehdighasemi4528]

Thnak you for your information.

[@scottdimmock258]

I suppose you weld these top plates to the I section using fillet welds on either side. When you verify the welds (or determine sizes), do you go by the shear flow or von mises criteria? This pondered me the other day. Keep up the good work.

[@EverydayDazz]

for a domestic beam like this I wouldn't really check it, if i had to spec a weld it is a minimum 6mm fillet. tbh, not really sure but if your beam like this example, the top flange is in compression. so you would want to convert that compression force into longitudinal shear for the weld design. for larger projects, we would get the fabricator to design these connections.

[@FiftySixish]

If you'd like to check it then I'd go for the shear flow. Here is a video with that exact calc: kzbin.info/www/bejne/laLTq32ulM95n7c

[@Szhihihihihihi]

Thanks man ! Keep it up !

[@dimitristhanasiskakanis440]

what app and device are you using for this? It's great!

[@918-x6y]

Hi Daz. How did you learn how to do domestic calculations? I did civil engineering so know how to design steel beams and columns but I'd like to learn how to do any sort of calcs for residential. Can you recommend a book or a course?

[@daliborzupan5143]

Great video! Could you please write me a notebook you use for sketching?

[@srenseyha4782]

Hello Everyday Daz, may I you create a video which explain to calculate the horizontal concrete pressure during casting concrete wall or column

[@wa7293]

Ha! This was my suggestion! Great video, thanks for the upload !

[@robertlygo4762]

If you had an I section (directly supporting an inner leaf) with a boot plate (welded to the bottom flange) supporting a outer leaf of masonry, how would you go about designing it? I suspect you would have to check the section for torsion as there is now an eccentric load acting on the assembly. But how would you go about checking the local stability of the weld? Is that something that you can often ignore in practice?

[@EverydayDazz]

need to check for torsion and would likely need to add stiffeners to stop the I section from buckling. best thing would be to use a SHS or RHS section. you'd also need to check for rotation instability at the connection or support. welds is typically not something i'd design but you can work out the local force the weld would need to be designed for. i think you'd need to look at the design of the longitudinal shear from the bending moment.

[@kyawkyaw-ox2kh]

How can I get your Excel spreadsheet Daz?

[@EverydayDazz]

I am working on updating some of my spreadsheets where I will post and share on Patreon where you can download.

[@GinjaSpud]

What is the app you are using to do the drawing of the compound section, and the math to the side of said drawing?

[@EverydayDazz]

i am using concepts app on the ipad.

[@the_right_path_14]

Any chance you can explain how to connect the beam flange to the plate ? plus how do you insert grout between the wall and the plate. and one last quastion- do you assume the wall keeps the beam from LTB ?

[@EverydayDazz]

you'd weld the plate to the beam. depends how they install the beam but where there is a gap, we typically specify non-shrink dry pack and you basically ram it into the gap to make sure it is tight and that no movement can occur once you remove the props. the LTB resistance would be from the friction between wall and the beam as it is not mechanically fixed. there are equations that you can use to check whether or not the wall can provide sufficient LTB resistance.

[@the_right_path_14]

Thanks!

[@omaralkarablieh8063]

What is this app?

[@EverydayDazz]

For sketching? Concepts on iPad

[@vinothkumar-qq1gf]

Can you make a video for structural engineering from basic (how to design, calculation of the load). Please sir, Am zero in structural engineering.

[@davidomeara1509]

Interesting video as always. Any chance you could show how to create the spreadsheet that you were using to check the steel beam + plate?

[@mutasem1335]

Hi Bro First thanks for your incredible videos. I need your advice I'm a fresh civil engineer I'm have problems in analysis staff sometimes it's hard for me to imagine the moment and shear and how their behave in the structure. I hope you understand what I mean. Therefore I need your recommendation to improve my analysis sense. My plane currently to see your videos in concrete design staff and maybe it will improve my analysis staff.

[@robertlygo4762]

Thanks Daz!

[@avinashdookayka4800]

could u make a video on rc shear wall design using british standard?

[@JC-sk9fo]

Hi Dazz, im a structural engineer based in London and I’ve gone through lots of ur video and hope you can become my mentor! Are you open to that??