Reinforcing steel beam

[ajk1]

To strengthen a steel beam that has ready access one side only, I am considering welding in a 35M weldable grade rebar top and bottom, one side of the web only, where the web meets the flange. However that makes it a Class 3 Section, because it is not doubly symmetrical. Can adding lateral braces at close spacing to the compression flange allow the beam to be checked as a Class 2 Section? I am using CSA Standard S16.1.

I know that there are other ways to strengthen the beam, such as welding a tee to the underside, but that requires breaking out the block wall below, spray fireproofing the tee and rebuilding the block wall below.

 

[KootK]

I would take the full section as resisting deflection, accounting for whatever existing displacement is already baked in the cake.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

 

[ajk1]

ok, thanks. Thanks for your help.