“Knowing this facility will be around for many, many years to come, we pushed ourselves to do more in terms of sustainability.”
With its dramatic signature curve and thin structural steel edges, the building establishes a new visual presence in Des Moines while promoting a healthy environment for Wellmark’s people.
The facility accommodates up to 1,750 employees and includes general office space, a cafeteria, a data center and a conference center. A sky bridge links the office building to a 1,650-car parking garage and an employee fitness center.
The complex shape, which features three different building orientations and an elliptical curve cut into its core, required a unique engineering solution.
Thinly profiled steel enhances the structure’s design details. This is evident in the two stairwells, known as “lanterns,” that form the bookends of the building’s elliptical curve. Encased in glass and featuring architecturally exposed structural steel, these stairwells challenged the structural team to design a support system that created the appearance of a floating stair element within the transparent facade.
To maximize the daylighting that reaches the building core, the design carefully positions structural columns, cantilevers floor framing and limits the depth of framing members. The natural light provides building occupants with a healthy indoor environment that supports wellness and productivity.
603,900 sq. ft. / 56,100 sq. m.
Engineering News-Record Midwest – Project of the Year
American Society of Landscape Architects Central States – Merit Award
Savings in energy costs
Reduction in overall water use
Amount of construction waste diverted from the landfill
Annual energy cost savings