My fifth game at Auckland Summer Cup

I managed to win the fifth game in Auckland Summer Chess Club.  My opponent was occupied with ideas about the queen side and didn't notice the dangerous f-pawn and white Queen and Rook stacked on f-file.  A bishop was lost, and the Rook didn't play dangerous on the queen side.  I thought 30. ... Rb2 with some threat of putting another rook on line 2 was better, but Black played for simplification and lost.