FAQ 000081 FR

Calcul RFEM RSTAB

I noticed an inconsistency for the determined result combinations. For example, why is the maximum vertical support reaction of RC4 zero? In my clear system, I can easily see that this cannot be true. The minimum load is alright.

Réponse

The maximum support force of RC4 is zero because the other RCs are considered as "variable" in the combination criterion.

As the support forces for the RCs 1 - 3 act in the same direction, the result in RC4 is for each only one value and the other value is zero.

To solve this problem, you have to define the other RCs in the result combination 4 as "permanent": RC4 = RC1/permanent or RC2/permanent or RC3/permanent.

In this way, the result combinations 1 to 3 will be compared among each other as permanent. The most unfavorable acting value provides the result.

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RFEM Logiciel principal
RFEM 5.xx

Programme de base

Logiciel de calcul de structures aux éléments finis (MEF) pour les structures 2D et 3D composées de plaques, voiles, coques, barres (poutres), solides et éléments d'assemblage

RSTAB Logiciel principal
RSTAB 8.xx

Programme de base

Logiciel de calcul de structures filaires composées de charpentes, poutres et treillis. Il permet le calcul linéaire et non linéaire des efforts internes, des déformations et des réactions d'appui