The bans follow five days after the IAAF confirmed that nine Turkish athletes, including two teenagers, got two-year bans for using anabolic steroids.
It could get worse for the sport in Turkey when TAF completes investigations into alleged doping by Asli Cakir Alptekin, the women's 1,500-meter champion at the 2012 Olympics, and two other female team members in London last year.
"The files of Asli Cakir Alptekin, Nevin Yanit and Pinar Saka were not assessed because the process of investigation following their defense statements is continuing," the federation said Monday in a statement published on its website.
At least three of the 31 new suspensions, including Apak, were on Turkey's London Olympic team. Tugce Sahutoglu competed in women's hammer and Elif Yildirim was in the 4x400 meters relay squad.