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Nairaland Forum / Nairaland / General / Career / STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria (38405 Views)
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Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 10:06am On Aug 28, 2021 |
feeloscar:do you use revit also? I want to know how the 2D drafting looks like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by feeloscar(m): 10:20am On Aug 28, 2021 |
hakeem4:I don't use revit for drafting, but Decode has shown how to draft in revit on youtube. |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 11:56am On Aug 31, 2021 |
hakeem4: Revit for formwork drawing is superb! |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 1:34pm On Aug 31, 2021 |
yungmin:you do formwork drawings? like for concrete? |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 4:00pm On Aug 31, 2021 |
hakeem4: Yes Engineer
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Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 4:04pm On Aug 31, 2021 |
hakeem4: I may not have understood you, but by formwork, I was referring to layout drawings 1 Like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 7:54pm On Aug 31, 2021 |
yungmin:when I meant firework. I meant temporary molds into which concrete or similar materials are poured. |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 5:07pm On Sep 02, 2021 |
@hakeem please a quick question. Do you model structures with plates in it? I.e, you model the slab in staad. Have you noticed any difference in the results between using the floor load and applying plate loads to plates (slab)? Please, check. I am seeing very significant difference in the beam moments and I can't explain why. |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 8:43pm On Sep 02, 2021 |
Please, examine this simple model. The beam moments are significantly reduced with the plates in place
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Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 9:01pm On Sep 02, 2021 |
yungmin:if you model it with plate. Then you’d have to understand thin shell theory. It’s the same with Etabs, If you model with thin shell and membrane you’d get different moments. Let me try my best to explain the difference why we have conflicting moments. Modeling with membrane/floor loads means that all the loads are directly transferred to the beam and the slab doesn’t have out of plane bending stiffness. But plate or shell have out of plane bending stiffness then distributes the load accordingly to the stiffness of the supporting beam. It also takes part of the load in form of flexure 1 Like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 9:02pm On Sep 02, 2021 |
yungmin:id go through it tomorrow at work |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 9:13pm On Sep 02, 2021 |
hakeem4: I totally understand this. My worry is the fact that the difference in moment is very significant. It is almost half times lower when you model with plates. So, does it mean that modelling without plates is being excessively conservative? |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 9:24pm On Sep 02, 2021 |
yungmin:almost half? Okay let me check the moments tomorrow |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 9:28pm On Sep 02, 2021 |
hakeem4: Okay, thanks |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 10:32pm On Sep 02, 2021 |
Please, check this in etabs to compare as well. Thanks |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 12:14pm On Sep 03, 2021 |
yungmin:hello yungmin, I went through your model and the reason why you’re getting varying moments and shear force was 1) on staad pro, the density of concrete is 23.6 kN/m3 while you manually assumed yours for your floor load as 25kN/m3. But I had to remove the self weight and assume a load of 3.6 for both of them. 2) because plates does not distribute by tributary areas. Floor loads has triangular and trapezoidal loads while plate load is basically finite elements and works with stiffness. The plate load is the way the slab would behave in reality. In real life there’s nothing as one way or two way slab. I compared your model with mine on Etabs and we’re getting similar results. I hope I answered your questions 2 Likes
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Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 1:17pm On Sep 03, 2021 |
Thanks bro. I actually figured the concrete density discrepancy out and reduced the floor load to 3.6 as you just did. But still, there was still significant difference in the moments. And now that you did it in etabs as well and have similar results, it means the output is okay but modelling without the plates is just more conservative. If you don't mind, please, share typical bending moment figures from etabs for the beam. I just want to see the difference. I know from my end, the moment of the beam (max) with plate elements was 21kNm why that without plates was about 36kNm. Thanks alot for responding. |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 3:06pm On Sep 03, 2021 |
hakeem4: I use Revit only for drafting unless reinforcements drawings 2 Likes |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 3:47pm On Sep 03, 2021 |
yungmin:wow, I have deleted the file. But I got the same results with staad, while using plates and membranes 2 Likes |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by KunleyY19(m): 3:46pm On Sep 27, 2021 |
Hakeem4 Good Afternoon Sir. What version of Staad pro Connect are you using ![]() ![]() |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 8:53pm On Sep 27, 2021 |
KunleyY19:pm me |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 7:14am On Oct 02, 2021 |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 8:13am On Oct 03, 2021 |
KunleyY19: Please,let me know if the physical modeller is activated in the version you downloaded. Dear @hakeem4 , do you have the physical modeller activated in the version you use? 1 Like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 8:30am On Oct 03, 2021 |
yungmin:yes. i use update 7 and it is very active |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 2:12pm On Oct 03, 2021 |
hakeem4: Wow, please, is there a way I can get it? Even if it means paying. |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 3:48pm On Oct 03, 2021 |
yungmin:email me I’d send the file tomorrow |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 3:52pm On Oct 03, 2021 |
hakeem4: I just sent a PM. Thanks alot |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 5:18pm On Oct 03, 2021 |
yungmin:I have replied you |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 7:39pm On Oct 04, 2021 |
hakeem4: Thanks alot bro. 1 Like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 5:47pm On Nov 11, 2021 |
1 Like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by hakeem4(m): 5:48pm On Nov 11, 2021 |
Schmidt hammer os 120 for light weight concrete and sandcrete https://www.youtube.com/watch?v=bOmU0GLnOgE 1 Like |
Re: STAAD PRO Connect Edition & ETABS Tutorials- for Structural Engineers in Nigeria by yungmin: 9:31pm On Nov 28, 2021 |
@Hakeem4 have you seen this image allegedly taken at MM2? Why would they place columns at the expansion joint? Na wa 1 Like
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