Design of RC Retaining Walls in Autodesk Robot: A Comparison of Different Methods

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Күн бұрын

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@niisarpei3676 2 жыл бұрын

I wish I could like and share this tutorial a million times. Extremely meticulous. Wonderful comparative analysis. This is the best tutorial anybody could ever ask for. I really enjoyed this long but short lesson. Thank you CEE. Godbless you immensely for your hard work.

@CivilEngineeringEssentials 2 жыл бұрын

Hi there, I am really glad you liked it. The video was a beast to prepare but it turned out just fine. It's great to see people react to this happily and joyfully. I tried to balance the amount of exposition and explanation with the amount of hands-on modeling, I hope it was well-balanced. Anyways, stay tuned for more stuff. I am editting now a simplified EQ video using the ASCE7 code. It will be released tomorrow (fingers crossed). Stay tuned, and spread the word by recommending the channel to your friends. Regards, CEE

@niisarpei3676 2 жыл бұрын

@@CivilEngineeringEssentials I look forward Sir. I have a great day. See you tomorrow.

@donaldkhanye2323 2 жыл бұрын

Well put Nii Sarpei, I could not agree more.

@donaldkhanye2323 2 жыл бұрын

I am never going to look at the F.O.S for overturning in retain walls the same after this 😊, CEE have absolutely demonstrated and referenced this factor including the impacts of its magnitudes. Retaining wall number 2 was a joy to watch in this and in other regards, thank you CEE. I can go on and on, for me it is safe to say that this was a very well compiled deep dive and it has successfully demonstrated that “it is not the software but the user”.

@CivilEngineeringEssentials 2 жыл бұрын

A huge thanks for your comments 👍 I will reply in detail on all comments tomorrow and even this comment will get editted. But I just wanted to tell you that I sensed a top gun quote. 😁 ( goose to mav during the final portion of the movie)

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentials 🤣😂🤣I knew I should have at least cited / referenced Paramount Pictures and Rooster....perhaps I caught the James Cameron's terminator BUG.

@CivilEngineeringEssentials 2 жыл бұрын

Oh yeh it was rooster rather than goose 😁 Stay tuned and I will answer ur question(s) tomorrow👍

@CivilEngineeringEssentials 2 жыл бұрын

Alright so, first, thnx for your comment. It is great to know that the things I cover in the videos do spark some ideas in my dear viewers. Yep, Factors of Safety do affect the design of robot and I personally smiled - and hinted that during my recording - at some of the findings. This was also beneficial for myself to be honest. And that is what my videos are also about, honesty. There is no faking, no clickbait stuff, no over-reactions. When I mess up, I admit I mess up and show people how to fix the problems ^_^ I guess this is also an important part of the learning process. Anyways, stay tuned. Today's video is a "basic" video about earthquakes using ASCE7 in RSA. Regards, CEE

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentials Thank you, I'm off to Today's video.

@donaldkhanye2323 2 жыл бұрын

On the lighter note, the Tx300, the semi-equalish, I am human after all, 3.5 not 3 at 31:10, and many others make your tutorials that much alive and I enjoy them. Thank you CEE.

@CivilEngineeringEssentials 2 жыл бұрын

I kinda like that some of my dear subscribers catch on the little references I throw out. Especially since this is the first video where I tried that. It is like kinda of a game, where in your second play-through you would realize some hidden traits of the game (in this case, video) itself.

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentialsWell put, the game with hidden traits analogy is a perfect description of the real wisdom and balanced humour that your tutorials are full of. I often find myself giggling every now and then when I am watching your tutorials.

@Mr.SKA-w4h 3 ай бұрын

hi again , great work , i have a question : when will you design (not model ) a raft foundation ?

@CivilEngineeringEssentials 3 ай бұрын

Hi there, It is still on my radar, I still had no time so far, but is indeed something very important that I will do.

@lmthunzi 7 ай бұрын

Really good stuff

@CivilEngineeringEssentials 7 ай бұрын

thnx a lot ^_^ I really appreciate your feedback. If possible, please suggest this channel to your friends, it helps a lot ^_^

@vgm370 2 жыл бұрын

Nice work! Keep it up

@CivilEngineeringEssentials 2 жыл бұрын

Glad you liked it. Help the channel grow by recommending it to you friends 👍

@donaldkhanye2323 2 жыл бұрын

The explanation from 15:10 and the two options, including the “BAD option” are examples of why CEE is on top. It was very satisfying to see and to learn how to best model a retaining wall including its foundation in RSA using simplified techniques and “floor” objects as the main modelling elements. What the limitations are and what the designer may practically do to better manage the associated intricacies.

@CivilEngineeringEssentials 2 жыл бұрын

Well, as you may have noticed, I do encourage hands-on approaches. Furthermore, I intentionally leave myself in the dark as to genuinely get surprised sometimes, which will prompt an honest reaction or an analysis that would be different if I simply "play out" a perfect structure using a flawless step by step procedure. So I basically speak my mind immediately whenever I got an idea, and then also honestly evaluate the idea and mention why it is a good one or a bad one. Glad you liked it, stay tuned for more content Regards, CEE

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentials This approach is working !! Keep it up. I am not going anywhere soon, I'm tuned for more content 😊

@YahayaHamza-b3l 2 ай бұрын

Thank you for taking the time to create such a detailed tutorial. It really helped me grasp the topic. But i am having difficulties with the retaining wall foundation design, i followed the two great videos you made for retaining wall and did exactly what you did in creating the foundation but my h1(the thickness of the footing automatically generate a ridiculously very high depth of 1.3m) when i try to change it it bring error like this (Condition not met for: Foundation shear Safety factor of bottom reinforcement in the direction of X axis: 0.00 < 1.0 Safety factor of top reinforcement in the direction of X axis: 0.00 < 1.0 ) please help me ...thank you so much CEE in advance

@CivilEngineeringEssentials Ай бұрын

first of all, I am very sorry for my late reply. can you send me the RSA file on civ.eng.essentials@gmail.com? I will take a look there and report back to you Please copy paste your comment in the email so that I have a bit of context PS: Sorry for the late reply. I had a ton of things to finish and now I am gradually getting back

@عازفالليل-ك6ق 14 күн бұрын

Thank you its awonderful but I want to ask about check for sliding and I hope you answer me .....once again thank you very much

@sothattheng8624 Жыл бұрын

Dear CCE, Thanks for your sharing! I'm looking to see the video continuous with raft found in retaining wall in futures. 🙏🙏🙏

@CivilEngineeringEssentials Жыл бұрын

Will be covering it as soon as I can. Currently, the RC building design series is what is taking my time.

@lorenzocatena4088 4 ай бұрын

@@CivilEngineeringEssentialsyes please!!!

@CivilEngineeringEssentials 4 ай бұрын

@@lorenzocatena4088 Will keep it in mind. I think I will make 1 video that goes through the entire retaining wall from start to finish.

@lorenzocatena4088 4 ай бұрын

@@CivilEngineeringEssentials ye, I'm designing a basement level, that basically matches your workflow as it would be a retaining wall. The real pain is to use both the floor onto elastic support (as a raft foundation) and the linear fixed support for the retaining walls. The reinforcement gets assigned properly only if you select the fixed support (RC component) which I appreciate is probably a Robot limitation. For a basement level it also seems impossible to add reinforcement between the vertical walls (floors) as the corners don't receive reinforcement. Another limitation (I think...) that I found is that if you have loading onto the basement walls (for example a wall on top of them) only the shapes "00" (british code) get used. It doesn't make sense if you have a loading or an opening, as other shapes can be used. If you have a sec. let me know what you think as I'm not sure if I'm doing anything wrong.

@donaldkhanye2323 2 жыл бұрын

Yep. The 4th wall is indeed special [my interest are “…spiked…..”], I could only glimpse that the technique aim to model the entire wall plus its foundation as “one single monolithic element”, and I am looking forward to CEE referenced “painstaking detail” tutorial(s) on this subject.

@CivilEngineeringEssentials 2 жыл бұрын

I will be planning this video carefully. It was even requested way before by my dear subscribers. Rafts, and anything related with Geotechnical stuff, have to be approached with care, coz there are tons of references to be considered, and also the interactions between soil an structures in its design is usually extremely interesting. As you have seen in the little info-nuggets I kept dishing out in this vid. I have it on my todo list. As a matter of fact, open the video description to see my todo list as of today. Regards, CEE

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentials I am looking forward to those (and to all the others that you have planned). The inclusion of the "Video Ideas for the Future" in the description is a very good idea. Thank you for this.

@donaldkhanye2323 2 жыл бұрын

Hello CEE. Yes, you are pronouncing my name correctly. I took my time to watch this (and I am glad that I did) because rushing through this deep dive 😊 would have been a waste. I love the fact that CEE do not shy away from addressing limitations or inaccuracies head-on where these exist, I now appreciate (because of CEE) that there is strength and growth in such an approach. Thank you for touching on the modelling of the sloped retaining wall at 7:00, and for the discussion on the interpretations of the “diagrams for linear supports” at 9:14, I have a question here: 1.Why are the reactions Fx and My not zero under the wall self-weight? These reactions are none zero whether viewed as “individual nodal Forces” or viewed through the “diagrams for linear supports”? Fx is especially noticeable. Which loads are creating these forces or reactions?

@CivilEngineeringEssentials 2 жыл бұрын

Great to know, I do usually try my best to pronounce names correctly, as I - myself - have a strange last name which makes ppl think before saying it. I've heard like, idk, 5 possible versions of my own name. Now I am really happy that you liked the vid. as for your questions: here is an explanation (I might talk about this in a future video if I somehow find myself faced with the same force) Now first of: forget the wall. Imagine you have a small table or chair. and you start loading it.. gradually... more and more... what you will see is, the table "legs" will have a tendency to "spread apart" and "move away" as the load increases, ultimately breaking out of the table, making the table lay flat on its surface. now why does this happen? and why do "frames" have horizontal force components when the only force they are subjected to are vertical gravity forces (ignoring wind). Well, the reason is: the horizontal elements (surface of table, beam in frame) will bend, which cause the "legs of the chair" or "columns of the frame" to move outside, as they are connected to the beams by rigid connections. So, I hope that the explanation above establishes why for a table and frame, you have a horizontal force component that "tries to push the column or leg away" of course you can resist this "pushing away" by applying proper supports, For a frame, using 2 pins on the ground will hold this movement, causing horizontal forces. Now something similar happens to the walls. Furthermore, another factor that makes walls unique to frames is that they are continuum domains (it is just a cool way of saying: surfaces) Allow me to remind you of your mechanics of material course (a course I personally teach at the university ;-) ) you studied that there is something called: poisson's ratio. This also plays a part in those walls, but this is a lengthy explanation that I will keep for later. Anyways, this is the reason why you see Fx. as for moment: copy paste the entire explanation above, but replace the word "tendency to spread the legs of the table" with "the legs of the table are also going to rotate" and "resisting this horizontal movement" with "resist this rotation" Sorry for this looooooooooong explanation, I hope it made sense. Regards, CEE

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentials Thank you, the explanation is perfect, it is intuitively relatable and it also points me to the relevant references for further details. I do not consider it long at all, in fact it is as required in order to properly address the question that was asked (I am grateful for the answer/response). I hope your students realize how fortunate they are to have (someone like you, scratch that), to have YOU as their professor. If they are not getting distinctions, it is certainly not because of lack of proper guidance, or explanations, or lectures. You got me curious about your last name prof?

@CivilEngineeringEssentials 2 жыл бұрын

I do get distinctions on my teaching each semester and they do get distinctions too, which makes me rly happy. Last name is ___. I am Dr. ___. (__) Teaching at the university of ___. I am an assistant professor and hope to become a professor as soon as I can. 😁 I am specialized in structural engineering.

@donaldkhanye2323 2 жыл бұрын

@@CivilEngineeringEssentials Doc, (MJ 😊), you are that good. I know I am not (and cannot be) the first one to tell you this. You are already a Professor to me with a whole lot more to give to both your students and to the rest of the world. As far as I am concerned, it is just a matter of administrative processes to be done for the University of Bahrain to officially award you your [already] well deserved Professorship title. I am a Civil Engineer in South Africa, we are worlds apart ! thanks to YOU (and to your willingness to openly share your knowledge with the rest of the world), I consider myself to be fortunate to get to share in your knowledge and experience. Thank you Prof.