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Removing Lally Column on 20 ft I Beam.

Looking for some help in removing a lally column located in the middle of a 20’ span.  Steel 10” I beam.  This is for exterior wall/ morning room bump out in foundation.   Floor joists are the only thing on the beam as there is no outside wall above  

What can I do to increase the deflection or support? Do I need the Lally column?  

Please help!!!  

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