Lateral displasement

[oyvinkle]

Hey! I am trying to model a building and I only want the lateral displacement off the floors to be present for the modal analysis. How may I proceed? I have used shell elements for the walls and ridged diaphragms for the floor.  When I use this kind of modeling the floors can rotate and I get an axial deformation in the walls…. Please help!!

[Rafal.Gaweda]

 Massses in XY direction only?

[oyvinkle]

One modal analasys for the X directrion and one for the Y.. The pic. is the first mode in the Y dir.

[Rafal.Gaweda]

Send me model please

[oyvinkle]

do you have an e- mail it seems the file is to big ore i ant copress it corectly

[Rafal.Gaweda]

use www.wetransfer.com or www.filemail.com service or any similar then post link here or in private message

[oyvinkle]

https://www.filemail.com/dl.aspx?id=YNDAZLYWEZRROLA
 Good tip

[oyvinkle]

The file was postet. can you open it?

[Rafal.Gaweda]

How do you think?

From where do I have model to show you errors http://forums.autodesk.com/t5/Autodesk-Robot-Structural/Mesh-consetration/td-p/3763970 ?

Calm down , I will look

[oyvinkle]

sorry about that I did not meen to be so blunt!

[Rafal.Gaweda]

As far as we understood your desire it is rather not possible to obtain (maybe with adding additional supports...)

Take a look at attached screen shot. This is an example of wall subjected to act only in Y / Z directions (supports blocking X in all nodes defined). So for such simple model you get "axial" wall deformation.

BTW: do not you think you should use Membrane diapgragm rather then Rigid? 

Of course it is your choice, just my remark.