Hi everyone,
I would like to Know how what is the expression of Eurocode, that the Robot use to calculate the minimum reinforcement of the foundation.
Thank you, best regards:
Ricardo Moreira (Portugal)
Edited by
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Solved! Go to Solution.
Solved by Jakub.Brozonowicz. Go to Solution.
If the results from the minimum value that the answer is as follows:
We accept that the elements are reinforced ones.
Due to the limitation of damage to fragile bent elements the condition (9.2.1.1-beams, 9.3.1.1 - boards) is always used:
AsMin = 0.26 * (fctm / fyk) * b * d
When grown fck then fctm grows too.
Also the minimum reinforcement grows with it.
Thank you,
When we define a load in "RC_Foundation design" with nature of design the programm don't use this expression "AsMin = 0.26 * (fctm / fyk) * b * d" to calculate the minimum reinforcement. It´s possible to change it ?
Best Regards:
Ricardo Moreira
This condition is SLS oriented one.
In case of Design load only ULS state check is done and other formulas taken as reference.
"
This condition is SLS oriented one.
In case of Design load only ULS state check is done and other formulas taken as reference.
"
I don't understand this answer, and I have similar problem.
For my spread footing, Robot calculates minimum reinforcement as 4,17cm2/m' for bottom zone, and 3,14cm'/m' for top.
According to EN 1992-1-1, this values should be calculated as:
As,min = 0.0013⋅bt⋅d = 0.0013⋅100⋅44 = 5.72 cm2
or
As,min = 0.26⋅(fctm/fyk)⋅bt⋅d = 0.26⋅0.22/50.00⋅100⋅44 = 5.03 cm2
whichever is greater.
??
Question is simple: Which expression Robot uses to calculate minimum reinforcement of the spread footing?
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