Postby Rory Phoulorie » March 29th, 2016, 2:41 pm
1) Yes, it is possible.
2) To give advice on sizes, one needs to know:
(i) span of beam to be supported
(ii) construction details of beam to be supported (dimensions, concrete strength, reinforcing steel sizes and spacings)
(iii) location of beam to be supported
(iv) dimensioned plan of adjacent beams to beam to be supported
(v) use of area above beam to be supported
(vi) location of structure in order to determine foundation requirements for new column