SCIA Engineer Tutorial about code dependent deflections of concrete structures according EN 1992

Video briefly explains the theoretical background of the deflection check according EN 1992-1-1 chapter 7.4, then the handling of the check in SCIA Engineer and the interpretation of results.
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[@mwangibenson5199]

Tutorials on pile design in scia will be of great help. kindly

[@aaroncondren4726]

Great tutorial, very informative and easy to follow.

[@matej0703]

Thank You Ivan for explaining CDD calculation. I have a question and would be grateful if You can help me. There is a service called SLS Deflection in concrete module which also calculates deflections in state 2 and it gives almost the same values as my own calculations done by excel spreadsheet so I would say that's ok, but on the other hand when I do the CDD calculation on the same beam for the same SLS Combination I get totally different values. Both calculations are done using the user defined reinforcement. To be exact I get 7mm linear deflection and I get 24.1mm using the SLS Deflection service which seems logical and expected. Using CDD calculation I get only 8mm deflection which is totally odd. Thank You for your time and effort that You put in this videos.

[@AhmedSalah-vy8vn]

really I appreciate your effort

[@camsect4619]

Thanks you so much for your video

[@sebastianbenalcazar8747]

The combinations you used to perform the check in this video are the ones that SCIA creates automatically right? What happens when I have a non-linear calculation? Can I still use those to perform the check or should I use the non-linear combinations, or is there a different path to be folllowed? GOOD VIDEO!!!

[@IvanBeles]

The deflection check is not designed for nonlinear combinations. In V21 you can use different combinations for immediate and long term deflections. But if you want to do nonlinear calculation, you can calculate PGNL (Physically geometrically nonlinear calculation). Then is concrete cracked and also the redistribution of internal forces due to cracks is applied.

[@sebastianbenalcazar8747]

@@IvanBeles Thanks for your answer. This means that I could perform a non-linear calculation but for the CDD (code dependent deflection) y must/can just use the linear combinations automatically created by SCIA?

[@robertasz9458]

Nice video. Thank you. What about shrinkage, is it possible to evaluate it?

[@IvanBeles]

no. I am sorry. Not with this deflection calculation. It can be simulated with temperature or strain load.

[@ivodemirov]

What is the slab thickness for this exercise?

[@IvanBeles]

275mm

[@PeterTekac]

Myslím si že Eurocode, kvoli tomu aby nebola imobilná ta stena tak len v tom článku 7.4.1(5) sprísňuje tu podmienku na celý priehyb, nie len na pridaný=creep+premenne. Ja som pochopil eurocode tak, že ak nespravím nadvyšenie tak musím mat priehyb totálny menši ako 1/500 a nie len pridaný. Nemám teraz skúsenosť z praxe aké má limity povedzme nejaká pohyblivá stena. Citujem článok z normy: (5) Priehyby, ktoré by mohli spôsobiť poškodenie pripojených konštrukcií sa majú obmedzeť. Za primeraný limitný priehyb po zabudovaní od kvázi-stáleho zaťaženia (G0+G1+xQ1) sa považuje hodnota - rozpätie/500. V závislosti od citlivosti priľahlých konštrukcií sa dovoľuje použiť iné limitné hodnoty priehybov. Super práca ďakujem za vysvetlenie programu scia, hlavne výsledky čo scia považuje za deformáciu pridanú.