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Trouble with the calculation of the soil allowable stress with RSA

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Message 1 of 2
PatrickSt-Louis5310
366 Views, 1 Reply

Trouble with the calculation of the soil allowable stress with RSA

Bonjour,

                 problèmes de terminologie entre contrainte de rupture su sol et contrainte admissible du sol dans le module Semelle / SOL/ normes CSA/ACI/BS Geo de RSA, svp lisez les pièces jointes.Une réponse rapide serait appréciée.

 

Merci

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Explanations for Patrick sent some time ago. Now some summary.

 

1/ mistake in Help topic http://docs.autodesk.com/RSA/2013/ENU/filesROBOT/GUID-8CED5DA6-06CA-4043-ACA5-B982916AE2E8.htm

 instead of q_ult/3 ≤ q_SLS it should be q_ult/3 q_SLS

2/ not explained in Help superposition&interaction of safety factors 3 (from the code) and user defined value of SF for Capacity from Geotechnical Options - such superposition is observed for Calculated/calculee soil stress

Assuming that SF is safety factor defined for Capacity in Geotechnical Options it seems that:

a/ for Allowable/"de rupture" soil stress

SF ≤ qULT/qSLS

b/ for Calculated/calculee soil stress

SF ≤ qULT/3/qSLS

 

Above effects reported to be fixed.

 

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If this post answers your question please click "Accept as Solution". It will help everyone to find answer more quickly!

 

Regards,

 


Pawel Pulak
Technical Account Specialist

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