MADRID | Spanish construction company Fomento de Construcciones y Contratas SA (FCC) seeks the strengthening of its financial structure through two real estate divestments and the move to a new headquarters. This week, Pontegadea Inmobiliaria has acquired Torre Picasso to the founder of the Zara boutique chain for €400m; in another transaction, FCC has sold its Balmes (Barcelona) and Federico Salmón (Madrid) buildings for €60m. The process of restructuring the…