Why do I get a warning "continuously restrained by precast concrete deck?
2022
Tekla Structural Designer
2021
Tekla Structural Designer
2020
Tekla Structural Designer
2019i
Tekla Structural Designer
2019
Tekla Structural Designer
2018i
Tekla Structural Designer
2018
Tekla Structural Designer
2023
Tekla Structural Designer
Environment
Eurocode
Question
Why do I get a warning "continuously restrained by precast concrete deck"?Image
Answer
The default beam property, which is carried over from the composite beam with profiled metal decking, is that the Top flange is continuously retrained in the construction stage.This is incorrect for a precast composite beam so a warning is issued if the restraint is NOT set to No, or edited via the Edit dialog > Lateral restraints page (via the right click context menu).
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If you set to No then the validation warning is removed and the construction stage checks in accordance with SCI P401, Cl 4.1.4 Balanced condition, are carried out.
In the Normal stage the beams are always assumed to be fully restrained.