Located in the suburbs of Tokyo, this 5,500-square-meter museum lies between Tama Art University's main gate and the center of campus. The library takes advantage of a gentle, three-degree slope on its ground floor, with colonnades providing simple, archlike structural support. These arches are formed with plate steel reinforced with concrete, with walls measuring 200 millimeters (about 7.8 inches) thick, with a maximum span of more than 12 meters (39 feet). Rows of these colonnades are arranged in a configuration that produces a variety of interior spatial types and exterior views.
Read ARCHITECT Magazine's complete coverage of Toyo Ito's 2013 Pritzker Prize: