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Provided Reinforcement design for divided column

7 REPLIES 7
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Message 1 of 8
stroxy
627 Views, 7 Replies

Provided Reinforcement design for divided column

How does one design a column which has been divided into two (or more) columns in the analysis module (because of connecting beams mid-height in column, or column spanning multiple stories)  in the RC design module.  

 

I assume you can take a section and input the real length of the column in the buckling analysis but how does one factor in columns end moments, etc.??

7 REPLIES 7
Message 2 of 8
Rafal.Gaweda
in reply to: stroxy

You have to divide such column into parts.



Rafal Gaweda
Message 3 of 8
stroxy
in reply to: Rafal.Gaweda

So if I have say a 6m column divided into 2 parts for analysis.  In designing the column I will design both parts as separate columns and enter efffective length  factor * 6m as the buckling length for each part ?

Message 4 of 8
Rafal.Gaweda
in reply to: stroxy


So if I have say a 6m column divided into 2 parts for analysis.  In designing the column I will design both parts as separate columns and enter efffective length  factor * 6m as the buckling length for each part ?


Decision is yours but IMHO if you are talking about right hand side case (below) I would suggest to use 3m as column length. Left => 6m.

 

bucklingcol.jpg

 

 



Rafal Gaweda
Message 5 of 8
stroxy
in reply to: Rafal.Gaweda

Thanks Was talking about LHS case

Message 6 of 8
stroxy
in reply to: stroxy

How did you get buckling shapes to show?

Message 7 of 8
Rafal.Gaweda
in reply to: stroxy

FEM Buckling analysis

 

modedispl.jpg



Rafal Gaweda
Message 8 of 8
stroxy
in reply to: Rafal.Gaweda

Thanks once again!!Smiley Very Happy

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