Forums >> Revit Structure >> Technical Support >> Slab with voids and reshaping points

Menia

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Good evening everyone!

So, i am trying to create  a bridge slab in revit. It is a slab with voids. To create voids i use the "model in place" component. Everything is fine working in a plane.

To create the exact bridge slab shape, I have to add reshaping points so i can get the acclivity and he declivity. Unfortunatelly, void floor form is not associated to the  top of the slab in any way. I assumed that if i pick the void floor and check "moves wih nearby elements" button, void would follow he reshape of he slab.

Is there any way i can lock the void with the floor, so that they correspond as one element? 

It is of MAJOR importance!

Thank you in advance for your help!

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WWHub

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Joined: Tue, May 16, 2006
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What do the voids look like, maybe we can offer a better solution?

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Menia

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Thank you so much for your direct response!!!

The voids are rectangular in section. Also i use void floor to cut the bottom of the slab (right and left in section) so that i can have the section shape of the cantilevel slab (slab with variable thickness). I need this specific section, first, to follow the road axis and second, that i can edit the level (offset up or down) at the right and the left limit.

I hope there is an easier way.

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WWHub

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Sorry but you were not very clear.   Right/left doesn't mean anythin without context - across ?.  A sketch would help a lot.  This may not want to be a slab but rather an in-place solution of extrusions and voids.

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Menia

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Here is two typical sections. Hope to be helpful. Thanks again a lot!

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WWHub

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You can't do this with a slab or even typical in-place elements.

Check out this video for an approach to look at.

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Menia

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Ok, I understand. I'm trying to do that now (it is a little advanced for me). So, to sum up, there is absolutely no way to join a floor with its voids and create a slope in both of them?

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WWHub

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What you showed is a twisted deck.  Sloping in probably two directions as it twists.   It is not a simple slope.  For a simple slope with those voids, you would do an in-place extrusion.  Solids and voids all in one sketch.

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