Good day sir, thank you for the video, I do have one question though. At around 3:35 into the video, you add the concrete density and Self Weight factor in the left hand side table, and at that point you will see near the bottom of the screen "Total UDL" updates to 6.002 kN per square meter to take the self weight into account. Then when you add self weight to the top table, it increases to over 22kN per square meter UDL. If I understand the software correctly, you should either include self weight in the left hand side table or the top one but not in both. With the specific case, a total self weight was supplied and I would therefore ad it to the top table, but then exclude it on the left hand side parameters. Doing a quick hand calc shows the total UDL should be 16kN per square meter is you use a 1.4 self weight factor as you suggested, but the total is shown as over 22kN per square meter. Regards, and thank you again for the effort put into these videos.
Hey Jan, thank you very much for bringing it up, well first let me just say you can add the factor to both tables, how does that work, when you have separate dead loads or you have a situation where the dead load does not include the self weigh of the slab you then add 1.4 or 1.2 to the left hand table so that the calculation for the self weight contribution at ULS will be taken care of using the Gk of 1.4 then when you enter the dead weight say due to chairs and other partitions and furnishings you add 1.4 or 1.2 to the top or RH table so that when their contribution is being calculated that Gk you entered is used to get it. Now thank you very much for pointing it out in this particular case the self weight of the slab was given along with the Dead Weights on the slab i don't know how i missed that i think it's getting used to just seeing dead load and assuming its everything else besides the self weigh of the slab so you are right i was not supposed to add the 1.4 to the LH table as in theory its actually just supposed to be Zero for the LH table then the 1.4 is added only to the top or RH table because the 8.0 Kn/m2 was already inclusive of the self weight of the slab. Thank you very much for subscribing and being attentive as its people like you that drive me to deliver these tutorials much much better and just improve on my knowledge sharing. I really appreciate and hope i might have added something useful by explaining that you can add to both tables but then it depends on the circumstances of the give loads.
Hey never how are you i will definetely start working on the scripts for these videos soon, i didnt have a connection for a couple of days so i have a bit of a backlog but i will be doing them soon
I have a little doubt, in this question they mentioned that total dead load 8.0kN/m2 including the slab self weight, in that case when you enter the udl value for load combination table I think you need to reduce the self weight value from 8 kN/m2, otherwise self weight add for the slab for twice.
Hey man! Great video ,really informative.I followed your tutorial step by step using a different example until i got to the bending schedule.Mine failed to generate the reinforcement details.Can you please tell me how i can solve that problem.Btw i could not figure out how you got offset(440) ,length(3400) and the bar edges Y12@250
Hey Edward thanks for watching the videos, so 141 i got it from applying the beam strip method to my slab where you get effective depth by saying (overall depth - cover to links - diameter of links - half of the reinforcing bar diameter) in this case it was 175-20-8-6. In our case since its a very simple slab and not a flat slab you can easily have just said 175-20-6 to give you 149 both are still correct ways when you are doing a preliminary design. Hope i have answered you well and a very good eye mate hope you subscribed!
Let me revisit that and get back to you but i think it was 2 different load cases, and if that is the case prokon handles the 2 different load cases separately
hey bro. as per the question it may be worth noting that the 8kn/m^2 include the self weight of the slab so if you could rectify by inputing the density of the concrete to 0kn/m^3 . will be witing for ur response
Good day sir, thank you for the video, I do have one question though. At around 3:35 into the video, you add the concrete density and Self Weight factor in the left hand side table, and at that point you will see near the bottom of the screen "Total UDL" updates to 6.002 kN per square meter to take the self weight into account. Then when you add self weight to the top table, it increases to over 22kN per square meter UDL. If I understand the software correctly, you should either include self weight in the left hand side table or the top one but not in both. With the specific case, a total self weight was supplied and I would therefore ad it to the top table, but then exclude it on the left hand side parameters. Doing a quick hand calc shows the total UDL should be 16kN per square meter is you use a 1.4 self weight factor as you suggested, but the total is shown as over 22kN per square meter. Regards, and thank you again for the effort put into these videos.
Hey Jan, thank you very much for bringing it up, well first let me just say you can add the factor to both tables, how does that work, when you have separate dead loads or you have a situation where the dead load does not include the self weigh of the slab you then add 1.4 or 1.2 to the left hand table so that the calculation for the self weight contribution at ULS will be taken care of using the Gk of 1.4 then when you enter the dead weight say due to chairs and other partitions and furnishings you add 1.4 or 1.2 to the top or RH table so that when their contribution is being calculated that Gk you entered is used to get it. Now thank you very much for pointing it out in this particular case the self weight of the slab was given along with the Dead Weights on the slab i don't know how i missed that i think it's getting used to just seeing dead load and assuming its everything else besides the self weigh of the slab so you are right i was not supposed to add the 1.4 to the LH table as in theory its actually just supposed to be Zero for the LH table then the 1.4 is added only to the top or RH table because the 8.0 Kn/m2 was already inclusive of the self weight of the slab. Thank you very much for subscribing and being attentive as its people like you that drive me to deliver these tutorials much much better and just improve on my knowledge sharing. I really appreciate and hope i might have added something useful by explaining that you can add to both tables but then it depends on the circumstances of the give loads.
I appreciate your work bro 🙏 thank you so much for all these videos
Glad you like them!
Great video!!! Really learnt alot
Glad you enjoyed it!
Please make a video on design of strip footing and pile cap design
Hey never how are you i will definetely start working on the scripts for these videos soon, i didnt have a connection for a couple of days so i have a bit of a backlog but i will be doing them soon
Nice one
Thanks for watching
Thank you from Jordan
I want the music ... Haha ... Nice one
Haha thanks brother will leave links in the description
I have a little doubt, in this question they mentioned that total dead load 8.0kN/m2 including the slab self weight, in that case when you enter the udl value for load combination table I think you need to reduce the self weight value from 8 kN/m2, otherwise self weight add for the slab for twice.
Hey man! Great video ,really informative.I followed your tutorial step by step using a different example until i got to the bending schedule.Mine failed to generate the reinforcement details.Can you please tell me how i can solve that problem.Btw i could not figure out how you got offset(440) ,length(3400) and the bar edges Y12@250
@proKongeek How did you get 141 for effective depth in y direction?
Hey Edward thanks for watching the videos, so 141 i got it from applying the beam strip method to my slab where you get effective depth by saying (overall depth - cover to links - diameter of links - half of the reinforcing bar diameter) in this case it was 175-20-8-6. In our case since its a very simple slab and not a flat slab you can easily have just said 175-20-6 to give you 149 both are still correct ways when you are doing a preliminary design. Hope i have answered you well and a very good eye mate hope you subscribed!
@@prokongeek6239.. Thanks. Well understood. Your videos are really helpful.
Safe is the best for slab design,,,
So i have been told, but other people also prefer Tekla and i find Prokon's SUMO to be a very good tool, i will be uploading videos on it soon.
👌👌👌👌
Thanks
But why you use 8kn two times in prokon bro... ???
Let me revisit that and get back to you but i think it was 2 different load cases, and if that is the case prokon handles the 2 different load cases separately
hey bro. as per the question it may be worth noting that the 8kn/m^2 include the self weight of the slab so if you could rectify by inputing the density of the concrete to 0kn/m^3 . will be witing for ur response
Why 1.4 for self-weight LF?
i am designing according to BS8110 the load factor for self-weight and dead loads is 1.4
sir,how do i design a continous slab using prokon
hey paul, i have a video on it using SUMO but in the Prokon Tutorials for Beginners Series we are going to reach Slabs, i will take you step by step
@@prokongeek6239 thanks I will really appreciate.
Pls remove the music...
Wassup Balakumar, it's sort of the trade mark but will put that into consideration
@proKongeek How did you get 135 for effective depth in y direction?