Fitting an RSJ for garage roof?

[Ant4300]

Hi, I am finished with most of the brickwork for my garage and am starting the roof. I have built pillars in the 2 side walls specifically for the RSJ to sit on. Thing is I'm not sure how to secure the RSJ to the pillars. Should I just sit it on a bed of mortar and brick round and above it? Or will I need to drill through the bottom flange and secure using rawlbolts? Or is there another method I've not considered?

Thanks in advance for your help.

 

[tony1851]

What is the steel beam for?

 

[Ant4300]

It is to support the roof timbers. Not going to use it for lifting or anything like that.

 

[tony1851]

If it's only supporting roof timbers, just bed it on some stiff mortar (1:3); no need to tie it down.