RC beam connection with column

[Anonymous]

I face a problem regarding the connection of a beam to column but not in the center of gravity of the column. What i have to do? And something else, if i have a slab foundation with beams what have to be the supports of each columns?

Thank you. 

[Artur.Kosakowski]

I'm not sure what kind of effects you want to include in your design. Could you give us more detailed description of your objectives?

[teixeiranh]

Or at least some more geometrical information on that problem.

[Anonymous]

Please check the attachment file.... Also, have a look on foundation elastic ground...

[Artur.Kosakowski]

For your original question (http://forums.autodesk.com/t5/robot-structural-analysis/wrong-concomitants-in-table/td-p/5772528) you may use UX offsets (shortening) for beams however the question is if you actually should model your columns as bar elements or as vertical panels instead. 

For the foundation - I think that you may consider removing fixed vertical supports under columns as you already provided vertical restrain in the definition of the raft foundation thickness. 

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[Anonymous]

What do you mean as bars elements or vertical panels? Could you please make a change to the file that i uploaded in order to understand what do you exactly mean?

[Artur.Kosakowski]

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[Anonymous]

Lets say that i will put it as a bar. Its impossible again to drag a beam from the side of the column.

[Artur.Kosakowski]

A bar element has got no real size (cross section is only its attribute) so a side of a column is sort of "virtual" . What is the effect you want to achieve? 

[Anonymous]

As you can see in the pictures the 20x50cm beam is not connected to the 80x20cm column. How can i make the connection?  

[Artur.Kosakowski]

You may consider using "horizontal" rigid link as discussed in:

http://forums.autodesk.com/t5/robot-structural-analysis/beam-lateral-offset/m-p/5463882

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[Anonymous]

Thank you for your answer. Another one problem I face is that when I try to solve an RC slab, I dont take the expected results regarding the top required reinforcement. The center of the RC slab should't be without reinforcement? Please see the attachment. 

[Artur.Kosakowski]

Unless they are cantilevers 

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[Anonymous]

Yes sure. I know the basics. 🙂 I am talking for the rest of the slabs which are not cantilevers. Solve one in order to see. Unless they are not connected with the right way.

[Artur.Kosakowski]

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[Anonymous]

So, you think I dont have problem with my model, regarding the offset between beams and slabs or anything else...

[Artur.Kosakowski]

I haven't thoroughly checked your model which is going to be your responsibly based on your knowledge of the intended behavior of the structure. I only checked if the upper reinforcement distribution in slabs is as generally expected and IMHO it is as expected. 

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