Bonjour,
Je travaille actuellement sur une passerelle piétonne et je dois la calculer en élément finis plaque.
C’est la première fois que je travaille en plaque et je ne sait pas si la modélisation que j’ai faite est bonne. J’ai fait un test avec un équivalent en barre T à inertie variable.
Portée de la passerelle : 12.4m
Raidisseur transversaux en dent de scie : tous les 0.6m
Passerelle Z.rf6 (1,6 Mo)
Merci d’avance pour votre aide 
Hi Benjamin.Thomas,
could you please provide the screenshots with English labels? I guess that more users will be able to dive into the problem then.
Thanks and regards
Sören
Hi Sören,
Here is the image with the text in English.
I created the model entirely using surface elements. I have stress concentrations at my supports, which seems logical, but how can I ensure that the stress check is verified at this local location?
Passerelle Z éléments surfaciques.rf6 (1,5 Mo)
Thanks for your help
Hi @Benjamin.Thomas 
,
thank you very much for your request!
Stress Concentration and SingularitiesWhen nodal supports are used in a model with surfaces, stress concentrations (also known as singularities) are unavoidable.
To reduce this effect, we recommend using line supports or surface supports instead. Both types of supports allow you to define nonlinearities:
At the supported ends of beams, local reinforcement measures are typically required. You can model these using end plates or stiffeners to ensure a realistic stress distribution.
Load Transfer SurfacePlease check whether it makes sense to use a load transfer surface on top of your existing surfaces.
If you want to distribute the load only in the X-direction, you can enable this directly on the steel surface by activating:
At the moment, your current configuration generates nodal forces only.
To visualize the load distribution from the load transfer surface, please activate the following option in the Display Navigator:
Best regards,
Marco Nikoleizig
Dlubal Software Support Team 
