Robert Hoag Rawlings Public Library

摘要

Pueblo's new Robert Hoag Raw-lings Public Library serves as a meeting place, a gallery for art and permanent displays, and a location for special events. The 109,000 sq. ft structure uses bold architectural forms and the juxtaposition of architectural finishes-with conventional composite steel framing in most areas-to create interest and drama on a budget. The first structural challenge was an overhead structure spanning approximately 98' and connecting two sides of the library on opposite sides of a street. This "skyway" included two levels of library stacks and administration spaces, as well as mechanical equipment behind tall, sloping parapets on the roof. The plan geometry of the skyway was trapezoidal in shape, with a glass-clad triangular hole through the middle, allowing light in and a view of traffic passing below. Four one-story tall trusses are located at the third floor level, with the second floor level suspended below. Directed spherical bearings were used to allow free movement due to rotations at the ends of the trusses and thermal movement.