For residential building,
If it is designed as the load-bearing structure you can provide 20cm x20 cm tie columns for more strength. (for good soil)
if you are designing it as a semi-framed structure, you can provide column size of 20 cm x 30 cm.
If it is fully framed structure, provide column size of 20 cm x 40 cm.
Better to conduct soil test and decide the column size and foundation.It will be more economical.
Tinu J
Civil Engineer | Ernakulam
For residential building, If it is designed as the load-bearing structure you can provide 20cm x20 cm tie columns for more strength. (for good soil) if you are designing it as a semi-framed structure, you can provide column size of 20 cm x 30 cm. If it is fully framed structure, provide column size of 20 cm x 40 cm. Better to conduct soil test and decide the column size and foundation.It will be more economical.
Musammil s
Civil Engineer | Kollam
23X30cm