Slab Meshing

[Anonymous]

I have an isolated one of the floors of a 15 story structure and tried to analyse it separately.

On running the analysis, it is found that the main slab is not getting meshed at all.

There are columns and wall supporting the slab. I have verified that the top of columns does connect to the underside of the slab (the 'z' co-ord for the top of column point and the story level at which the slab is drawn is the same).

On checking the revit model from which the floor was imported into Robot, it is seen that the column is conencted to the bottom of the slab without any offsets.

The slab is defined as a shell with load distribution set as FE.

What could be the possible reasons for the slab to not be meshed and the columns not seeing any reaction forces?

 (please refer to the attached Word file)

Gaurav

[Rafal.Gaweda]

Use Roundup addin (from forum)

If it does not help please send us model.

[Anonymous]

Not sure what you mean by 'Roundup Addin'.

Can you please explain.

Thanks

Gaurav

[Anonymous]

How do I send the model over?

It seems that I cannot attach a .rtd file

Thanks

Gaurav

[Artur.Kosakowski]

Zip it or http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Sending-bigger-files/td-p/3795062

[Anonymous]

My model is stored at the following link

http://www.4shared.com/file/6VcDVJ4h/Structure-06-R3-8th_floor_only.html

Thanks

Gaurav J

[Rafal.Gaweda]

---

GauravPJ wrote:

Not sure what you mean by 'Roundup Addin'.

http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Rounding-up-coordinates-API/td-p/3430533/pag...

[Rafal.Gaweda]

It seems your model came to robot from Revit and unfortunately it is inaccurate.

Some hints here :

http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Revit-to-Robot/td-p/3812616

1. Do not use kinematic links

2. Do not use regular mesh

3. Correct model geometry:

Many walls are not connected to each other

Many slabs "go into cores" instead of end in walls planes

Slabs  \ panels are overlapping in some corners.

HINT: define walls from level to level \ from slab plane to slab plane not crossing slab panels