The Design of Steel Connections - what to consider.
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- čas přidán 28. 06. 2024
- Steel Connections can often be overlooked in designing steel structures, with engineers leaving them to typical details. However, it is the most important aspect of steel design. If overlooked in the design of your steel framed structures it can lead to disastrous consequences.
also when looking at steel connection design, it can seem very complex however following some simple rules can make designs much easy.
I cover the based rules of steel connection design, to make your designs easier.
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Nice. Just one thing though.
AS4100 Requires a minimum of 2.5x bolt diameter between adjacent bolts not 2x.
Thanks for the correction, glad you enjoyed the video.
I’m an erector trying to thoroughly understand every element of my job. New to your videos, and I have to say you are an excellent teacher. The way you describe the topics is so clear and detailed that an uneducated person can understand and become educated or at least knowledgeable. Thank you sir. The only confusion I have with your videos is converting from metric to imperial.
As a Contractor that erects small and medium steel structures and has to resolve a LOT of things where the structural engineer does not think of things like bolt locations, continuous welds, etc this is so refreshing to listen to. I wish everyone was willing to spend the money to hire a good structural engineer.
This is the exact video I have been waiting from you, thankyou
Hi Civil, thanks for the support. Glad that I could provide.
Absolute legend!
Keep up the good work🥳
Theres not enough of these informative videos out there
Hi Levi, glad you found it helpful. Thanks for the support.
Thanks Brendan, that was informative. Keep going.
Hi deepak, thanks for watching and the ongoing support.
Great content Brendan. Also, I see your channel is growing, you're doing well for yourself, keep it up!
Thanks Takunda, glad that you enjoyed my Video. Hope that I keep growing.
Great summary of steel connection types. Would love a video on torsion when you get the chance!
Hi Michael, thanks for the support. Torsion would be a good video, it happens in so many places, typically I try and avoid it.
Good summary on both bolted and welded connections in steel structures. Hollow sections can be problematic with connections, particularly thin-walled sections. Good 'rules-of-thumb' on plates and bolts. Good luck on your new ventures in engineering.
Hi Guy, thanks for the support. agree hollow sections can be hard to connection, and is made worse when thin walled. typically you need to do to slotted connection to even get enought capacity it is hard to get enought strenght in the welds.
Thanks for your videos there very informative for the public.
Thanks for watching Konnor!
thank you so much for the topic you bring to us
Thanks for the ongoing support.
Great content 👌
This one material I really don't like to design but glad you provided the insights for steel connections...appreciate your video.
Stay safe.
Malik from Barbados
Hi Malik, glad that you enjoyed it. Thanks for the support.
Thank you very much for your teaching. it is very useful.
glad that you found this helpful
Thanks for letting us steel your knowledge!! 🤓
Thanks for watchong Duyen.
Thanks Brendan, Great content
Thanks Hamid you support is welcome.
@@BrendanHasty For sure Brendan, How can we be in touch ? by email?
Also we can provide Shear Key to the Base plate to reduce the required size of Anchor Bolt.
Thanks brendan, very interesting video.
Could you make a video about 2nd order effects in steel structures?
Hi Matte, thanks for the suggestion. Will add it to the list
Great work
Thank you! Cheers!
Hi Brendan, great channel with informative videos. I am a structural engineer working in the UK. I have recently gone from working in a medium consultancy to working freelance doing smaller (domestic mainly) types of projects. I would love to hear your thoughts on how to get bigger projects as a small practice, and how big is too big?!
Hi Dan thanks for the support and the suggestion.
Thanks
Thankyou for the support.
thank you
Thanks for the support. You comment help alot.
The pro tip is useful😊
Thanks for the support
@Brendan Hasty. An ultimate thanks to this video. I was just confused in the timestamp 9:45 where you discussed the ratio to avoid prying.
You initially said that A should be lesser than B. But you also said that A/B should be at least 0.75 -- Is it right that when for example A/B is 0.75, then A = 0.75B and if it is A/B is 1.5, then A=1.5B making A bigger than B. Should this be A/B should be 0.75 at most?
Not sure, just a clarification :))
Why there is no prequalified connection for hollow tube section columns?
When are you going to do a video about tuned mass dampers, viscous dampers, base isolators etc ?
Hi Quake, I want to make that one with piratical examples. It take some time and planning. No timing yet just need more free time. Hopefully it will be good
Did an Adv Dip at TAFE and they spent a lot if time on this
Thank you for this video, I've learned a lot and appreciate all the tips for designing connections. Do you plan to make a video about splices? I have a situation right now that the client wants me to splice cut-off steel members into 1 member and use it as an intermediate beam, I'm wondering if there's a limit to the number of splices we can do per member. (This is certainly out of the videos topic 😅✌️)
Hi Ninzo you can splice a beam multiple times, just do not want to splice the beam at peak moments or shear.
@@BrendanHasty Ohh I see, thank you for the enlightenment. 🙏
You mentioned a link to your book, Golden Rules of Steel Design. I don't see a link, but am interested in it. Would you send the link?
Would you design a steel column supporting a concrete slab for bending moment as well? According to AS4100, we should consider a minimum eccentricity of 100mm. This would limit a lot the capacity of steel columns. For example, a 89x6 SHS can take 324kN in compression, however if we consider 100mm eccentricity, this number drops to 115kN. Curious about your thoughts on this.
Hi Gabriel it depends on how the column is loaded. be bearing ontop you can reduce the eccentricity to half the width of the column. as there will be some mmoment tranfer there will also be some minimim eccentricty but this ecc is only from the slab. any only from the column over can be reduced futher.
Excellent issue ..
Plz can we sumrmay that there is 2 type of connect fist shear and second moment.
1. For shear the distance between the bolts and between bolt and the edge = 7.5 cm
2. For moment Conection the distance between bolts and between bolt and the edge = 5 cm
Is that true plz .. Thx
Thanks Champ.
You do not know what a big favour you are doing, especially to those mechanical engineers like me who want to do steel structure design.
If you can, may I request you to please do some lectures on transitioning from AS3990 (Working stress) to AS4100 (Limit states), please.
Regards,
Chirag
Thanks for the suggestion, sometimes I deal with working stress, maybe an interesting topic.
at around 8.30 in, you talk about preloaded bolts (tf?), is the shear not taken by friction if they are preloaded?
As an aspiring fab shop lead this was good stuff that I know nobody is thinking about where I work. But that's why I'm a QC and lead fitter at 25 and these guys are 50 and just labor welders, no hate but I'm trying to be a better craftsman everyday and their lack of enthusiasm can weigh me down. But you can't teach someone to be sharp. You can hone some steel but you usually won't make a scalpel from a butter knife.
@9:43 i think you mean the opposite , the bigger the A with respect to B the Better or iam missing something , thanks a lot for the informative video
Was just on a site where the contractor had to place reinforcements within 75mm of where the plans directed.
What the commonly accepted construction tolerances for steel connection designs?
Hi Paul typically in aus it reinforcement should be withing +/-10mm and concrete can be +/- 5mm. However if the structure in in ground thinking like piles and footing have a higher tollarance.
New subscribed from Somalia
Welcome to the community!
Every foolish can design a beam. Only an engineer can well design a connection. Great content. Thanks for this. Structural Detailing Is the most important part in my workflow. God Is in the detail
Hi Paolo, agree that steel design is all in the connection detailing. Thanks for the support.
Worked as a geotechincal eit for almost 4 years and recently switch to structural. Do you do one on one structural engineering review services online?
Like a mentorship career guidance? Have Been thinking of something like that. Is that what you are interested in.
@@BrendanHasty Yeah i'm from Canada and I really want to learn how to design from the foundation (helical piles, caissons, spread footings) to designing the beams and columns for any structure. I know I can review textbooks, but it doesn't seem practical.
Please make course on structure engineering so that we can access it from india in india very less courses are available
Please
Hi Samin I plan to make make one just want to make it good, so will take time. I may start releasing videos on specific topics, releasing them as I finish them.
@@BrendanHasty thanks sir
I am Btech mechanical Engineer India ,now i am working at a connection designer .my question is , possible to study pg stractural? What i do for my level up please answer anyone ?
In India I don't think there is university that takes Mechanical to Structural PG. You need a Civil background. But please continue the search. If it is possible then good luck buddy.
Great and informative videos. BUT could you slow down a bit..you talk way too fast and images flash on and off the screen way to quick. It's a bit hard to take in what you've said before you jump onto the next section. Our attention span can last a bit longer than ten minutes.. Just a suggestion.
Thanks for the suggestion, I am trying to slow down. I do talk a bit fast. Thanks for the support.
2:38 was not needed man
Language "Portuguese - Brazil"...
Please
Hi Syllas, I just added Portuguese subtitle, hopefully it helps.
@@BrendanHasty I've been following your work for a long time, very educational, I sometimes take a chance on English so I can learn too :) ...Brazil sends thanks
@@syllasreis7719 Thanks so much for your supports, I will make sure my future videos have Portuguese subtitles 🙂