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callumdkerr
Posts: 1
Registered: ‎07-26-2012

Embedded Steel

248 Views, 5 Replies
07-26-2012 03:40 AM

I am looking at embedding asteel beam within a concrete shear wall. Is there a way to do this in Robot to compare to a simplified strut and tie model. Do you have to use volumetric analysis with it or can you use the a shear wall 2d model. Do I need to define an interaction between steel and concrete to model this?

 

Thanks in advance,

 

Callum

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Artur.Kosakowski
Posts: 4,832
Registered: ‎12-17-2010

Re: Embedded Steel

07-26-2012 03:46 AM in reply to: callumdkerr

Perhaps it would be enough to model a wall as  a panel (Shell model) and then define a bar element (beam) inside it. The connection between the wall and the beam is by common nodes generated along the bar element during wall meshing.

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

 



Artur Kosakowski
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Active Member
MokshdaB
Posts: 7
Registered: ‎08-30-2012

Re: Embedded Steel

08-31-2012 01:31 AM in reply to: Artur.Kosakowski

Hello! I am relatively new to Robot and  have a similar problem in that I am trying to model steel ground anchors in a concrete slab. I have modelled the anchors as bars first and then modelled the surrounding concrete (contour-panel-extrude). Please could you advise on the most appropriate way to model the steel-concrete interface? Thank you

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Artur.Kosakowski
Posts: 4,832
Registered: ‎12-17-2010

Re: Embedded Steel

08-31-2012 01:56 AM in reply to: MokshdaB

As there are no contact elements in Robot the force transfer between a bar element and surface or solid ones is to be done by their common nodes. You need to mesh solid or shell in such a way that  you have nodes of solid or surface elements generated along the bar.



Artur Kosakowski
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Active Member
MokshdaB
Posts: 7
Registered: ‎08-30-2012

Re: Embedded Steel

08-31-2012 03:12 AM in reply to: Artur.Kosakowski

Thank you. How do you ensure the bar and solid to have common nodes? I have tried using emitters at my nodes along the bars but it's not working very well.

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Artur.Kosakowski
Posts: 4,832
Registered: ‎12-17-2010

Re: Embedded Steel

08-31-2012 03:28 AM in reply to: MokshdaB

At the level of the contour that you want to extrude define a node that have the same coordinates as the bar. When you mesh it the mesh will snap to these node. If you make the extrusion the new nodes will be generated along the bar line.



Artur Kosakowski
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