110 North Wacker Drive
At 814 feet (248 meters), 110 North Wacker Drive is the tallest commercial office tower to rise in Chicago in more than 30 years. Built on a sliver of land bounded by Wacker Drive to the east and the Chicago River to the west, the 59-story tower was the product of strong architectural and engineering collaboration.
The team designed long-span, column-free perimeter office bays within the narrow site, leaving little available space for an interior structural core on the project site’s small, trapezoidal footprint. The composite concrete core and structural steel outrigger system efficiently minimizes the base width of the interior concrete core to just 29’9” at the narrowest section by engaging the perimeter building structure to resist lateral loads.
To maximize space for a new Riverwalk plaza, a system of dramatically sloped columns are clustered together and supported at three touchpoints along the river. These tall, slender supports are a distinctive architectural feature, engineered to gather the load from 54 floors overhead and precisely redirect it to the highest-capacity caissons used in Chicago.
Three Learning Objectives:
- Unique foundation solutions for a small site filled with existing conditions
- Designing a lateral load resisting system for an 814’ tall tower
- The design of a signature base structure which gathers together the tower’s western edge loads into 3 points of support
This is a virtual event on Zoom. Please register before 10:00am on Monday, 3/1/21 to ensure you receive access to the presentation.
Members - $25
Non-Members - $50
1 CE Hour
Please note this event will NOT be recorded
About the Speaker
David Weihing, P.E., S.E., LEED AP
As Senior Principal and Office Director in Thornton Tomasetti’s Chicago office, Dave Weihing is responsible for leading and overseeing the development of structural designs for local, national and projects worldwide. With over 20 years of experience, Dave has been integral in the design of many buildings throughout Chicago including 110 North Wacker, 191 North Wacker, Block 37 (108 N. State), Citadel Center, and Wrigley Field.