The University of Miami bought the Macy’s furniture and mattress store in Pinecrest for $40 million. The Cincinnati-based retailer sold the 77,861-square-foot building at 13251 S. Dixie Highway to the Coral Gables-based university. The property, developed in 1972, is near the Falls mall and a Publix, in one of the wealthiest ZIP codes in Miami-Dade County. The university might use the site for its health care system, indicated by the involvement of Stephen Wooldridge, UHealth’s chief facilities operations and planning officer. This purchase follows Macy’s sales of two other South Florida furniture showrooms earlier this year.