Beams deflection (ACI)

[Anonymous]

i want to calculate the deflection of RC beams according to aci 318 

-Beams : 10 m 

-Load : Only dead load :18kN/ml (no live load )

 

But Robot calculate the following deflection ( calculate deflection for live load 2.1cm ) 

2.4.5 Deflections

d(L) - initial live-load deflection
d(D) - initial dead-load deflection
d(LS) - initial sustained live-load deflection
d(LT) - total sustained live-load deflection
d(LT),lim - allowable deflection

Span d(LS) d(L) d(D) d(LT) d(LT),lim
(cm) (cm) (cm) (cm) (cm)
P1 2.1 2.1 6.1 6.1=(L0/162) 2.5

[Anonymous]

i am always waiting for a response of autodesk members 

[Artur.Kosakowski]

I'm sorry that you haven't received an answer earlier however the forum by its nature is a 1 to many type of communication so we may not be able to assist everybody as fast as we would love to. 

If you have a look at the description of the diagrams you will see the correct one (deflection due to both dead and live loads) and this is what should also be displayed in the calculation note. Thank you for notifying us that it is not.

 

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If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[Artur.Kosakowski]

Hi @Anonymous 

RSA 2020 has got improved descriptions of the deflection components.

If I managed to answer your question(s) press the Accept as Solution button please. This will help other users to find solution(s) much faster. Thank you.