Blue Book Steel Design - Laterally Unrestrained Steel Beams
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- Опубліковано 9 вер 2017
- This is a short video tutorial to show the design of a laterally unrestrained steel beam to EC3, using the Blue Book by the SCI. This video introduces lateral torsional buckling and has been made to help students in their design project work. It is in no way endorsed by the SCI, Tata Steel or the BCSA. It is recommended to watch the other videos relating to this topic to best understand the concepts discussed and the calculations carried out. I hope that you find it helpful.
Hi Mike, Chartered Structural Engineer starting to pick up the Eurocodes in earnest now and your videos are excellent. Very well explained and good graphics. Hope to see more
It is exactly what I was looking for! Thank you for great explanations!
Thank you for the heart and soul you put in all your videos all this long Mr. Bather!
- Avid follower. And aspiring structural engineer 🎀
Thanks Mike, love the videos!
Got where I area came from! Thanks Sir Mike!
I'm a chartered surveyor trying to learn more about structures to help me with my job. I have picked up a few text books on the subject but none of them have been as informative or easy to understand as your videos. Your videos make a complex subject easy to understand even for a novice like myself. Thank you.
Thank you for the kind comment, Mike
Thanks a lot, you explained LTB simple, wish they wrote codes in this manner.
Hi vili vont, I do too!
Great video, thank you. Would you do similar check for lateral torsional buckling if the load added was not through the beam centroid but it was an eccentric load in the middle of the beam length? Have you done any similar exercise for this problem?
Thank you
Rosita
Thank you Mike for the video and the good explanation which is easy to follow...
I want your suggestions , I'm looking for interesting idea of thesis for my final year?
I still don't know what to do
Regards
Hussein
Hi Hussein, it is very difficult to choose a thesis from the wide world of engineering. In my experience, some of the best theses that I have seen have compared the results of lab work with predictions from calculations. The two never match and explaining why gives a good opportunity to show deeper understanding. Also, theses that are directly linked to industry can be very good. Finally, discussing several titles and variants with your supervisor can be a good way to really find a good topic. I hope that this helps, Mike
Good day Sir, can you please explain briefly the supports spaced way beyond L1 or L2 for a simply supported beam as stated in the AISC-ASD Code. It will be a great help for my studies.
Look it up in the blue book.
I noticed that the second moment of area you've used seems like a trick? where ML.L x span/56. can you explain sir Mike
Best Regards,
Frank
Hi Frank, yes, I = ML/56 is a steel designer's short cut that relates the deflection under a UDL to a typical (for many buildings) live load deflection limit of span/360 and assumes a value of E = 210 000 N/sqmm. I explain this a little more in the video on laterally restrained steel beams (Blue Book Steel Design - Introduction to Beam Design and the Blue Book). There is no need to use this particular short cut. There are plenty of others out there also. This just allows deflections to be checked quite quickly. Nowadays, computers can do this in any case, Mike
I'm working towards my chartership exams in the next year or so and was wondering if you have any information to help people going towards this large exam?
Hi Duckfootification, It is a big exam! We used to run a twenty week course for this at my previous university. I think that regional groups of structural engineers often run courses for this too. I think that the best approaches are: 1. Tackle past papers and get feedback from experienced engineer(s); 2. Try to get as much preliminary design experience as you can while at work; 3. Carefully plan a slim folder of data, worked examples etc that you will take into the exam with you; 4. Sketch, sketch, sketch, draw, sketch and annotate - I think that annotated sketches are the best way to communicate for a structural engineer, and finally, 5. Draft out a timetable for the day's work and try to stick to it (you can estimate time per question by the mark scheme). Best of luck, I hope that this helps, Mike
Thanks Mike,
I'm moving to a different office next year and my line manager has just become chartered so I hope to glean as much knowledge off her.
Have been putting together a little worked example folder already. Need to work on my sketches though.
I will keep working on it. Love your videos!
One two buckle my shoes
Buckling load ?
Hi georgen9755, ha ha yes, we talk about the buckling resistance of the steel beam as it could fail due to lateral torsional buckling. I know that we really are checking the beam as an element in bending, but without restraint, relatively flimsy steel beams can fail in lateral torsional buckling. Best wishes, Mike
Do a video of Top 10 beam designs (gone sexual)
kuyesaw