The Westin Riverfront Resort is a totally precast concrete building, which emulates flat-slab post-tensioned construction and demonstrates that a precast alternative could be constructed in winter conditions on a confined site. Approximately 3700 precast pieces using four basic precast components: elevator/stair cores, precast columns with capitals, beam-slabs and rib-slabs, allowed the precast erection to be completed two weeks ahead of schedule. This paper describes the structural concept, component testing, fabrication and construction of the building. The Westin Riverfront Hotel is a nine story luxury hotel with 50,500 sq m of hotel, lobby, parking and auxiliary space. Serving the ski areas of Vail and Beaver Creek, Avon Colorado is located on the western slope of the Rocky Mountains approximately 160 km west of Denver. The structure design was a competition between precast concrete, steel and cast-in-place deck and flat-slab two-way post-tensioned construction with a column grid spacing of approximately 9,1 m x 9,1 m on center. All concrete work was completed during the winter months between November 2006 and May 2007.

Keywords: Precast, Concrete, Building, Construction