What do I need to hang this off of?

I put 100mm x 100mm RHS beam around the entire gym, i stand this frame on 100mm x 100mm RHS legs and some 100MM OD Tube for corner posts, incoperate the ring into it and weld 100x100 RHS peices coming off the frame with gussets in place. ive got a photo of the ring but not showing the side in which the bags go in the ring, bags are hung on one side and when sparring is done they are hung over the other side of the ropes. I had a heap of photos but there all gone from imageshack and i cant find them on my pc, ive only got a few sparring ones.

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Bags are on the right hand side of the picture they are behind the ropes in between the wall and ropes and theres another bag behind the ropes just behind the fat guy lol and no that fat guy isnt me im in the red with weighted vest, ankle weights and reistant bands on legs and hands.