horizontal curved beam displacement

[Michele100100]

Hello,

I have a problem with ah horizontal curved beam generated from different segment.

It is a simply supported beam, so pinned-pinned, and not a big span. But if I have a look at the displacement they look very big. Different situation in case of a normal horizontal pinned-pinned beam but with bigger span and same loads.

There is any mistake in the way I model that curved beam?

attached the model.

Thanks

[Michele100100]