We have weekly study hours for active members, and academic progress is monitored by the Academic Chair. Typically, the Academic Chair sets up special study sessions, and/or reserves rooms on campus for that purpose. Also, she usually offers incentives throughout the term, and small rewards for those who are doing well and/or improving.
When I was an undergraduate active, we used to reserve big rooms on campus for our studying, and open the session to anyone on campus who wanted a quiet place to work.