Project Description: This 1.12 million square foot parking structure addition consisted of 3 new levels of parking deck (115,000 sf per level) constructed over an existing, and operational, 5 level parking structure as well as a brand new 7 suspended level (106,000 sf per level) parking structure.
The vertical element consisted of 48" and 60" diameter columns, as well as rectangular columns ranging in size from 16"x24" up to 30"x60". Most of the columns were constructed without concreting the bottom 12" to 18 (creating a void and allowing movement) until the deck above had been post tensioned.
Two spiral helix ramps constructed on this project were supported by spoke-beams spiraling out from a round hollow core column.
The suspended slabs were formed using a traditional tapered steel beam forms with ganged truss-joist tables from company inventory.
Transfer girders were formed using a ganged soffit and beam side forms and company owned steel column forms were used to form the column.
Corbel blocks were cast monolithically with the perimeter beams which became the support and attachment point for the bull-nosed precast perimeter enclosure.