Bjarke Ingels talks about "Loop City," his studio's modern take on Copenhagen's Finger Plan. In the video he mentions one of B.I.G.'s main interests - the idea of functionalism creating radical designs. A good example of this is "8HOUSE," which was recently completed. It started as a simple perimeter block, and through functional decisions alone became a twisted and tilted multistorey combination of accomodation, commerce and office space. The video below details this process.
I also recommend browsing through the various projects on their website, which range from pavillions to man made islands.