Elliptical atriums and promenade
Complex curved framing connecting three open-air atriums with the pedestrian promenade and curtain wall systems.
LOCATIONHonolulu, Hawaiʻi, USA
CLIENT / FABRICATORAllied Steel
STRUCTURAL STEEL TONNAGE3,200 tons detailed by Anatomic
DETAILING SCHEDULEThree months
Project overview
Three elliptical atriums connected by a curving promenade.
International Market Place is a major redevelopment of a landmark shopping destination in Waikīkī, Honolulu. The approximately 345,000-square-foot retail center combines shopping, dining, and entertainment around three large open-air atriums.
The atriums feature elliptical steel openings connected by a sweeping pedestrian promenade, creating complex intersections between curved structural framing and curtain wall systems.
Working for Allied Steel, Anatomic provided structural steel detailing for the project under an exceptionally compressed schedule.
3,200
Tons detailed
Enlarge view
Project team and technical details
- Owner / Developer
- Taubman Centers / CoastWood Capital Group
- Structural Engineer
- Ludwig Structural Consulting
- Architect
- JPRA Architects / WCIT
- General Contractor
- dck/FWF Joint Venture
- Steel Erector
- Swanson Steel
- Project Period
- 2014–2016
- Opened
- August 2016
- Market
- Commercial / Retail
DETAILING SCOPE
Structural steel detailing across curved, seismic and cantilevered structures.
Seismic joints and bearing assemblies
Specialized connections between six structural zones designed to accommodate independent movement.
Precambered cantilever trusses
Engineered trusses supporting a three-story retail section extending approximately 20 feet beyond its supporting structure.
Elevator and escalator framing
Steel framing for the central glass elevator and angled escalator canopies within the atriums.
Precast parking embeds
Coordination of steel embed locations with off-site fabricated precast garage panels.
Fabrication and erection coordination
Frequent BIM model reviews involving the detailing, fabrication, erection and engineering teams.
TECHNICAL COMPLEXITY
Coordination and detailing challenges.
Curved atrium geometry
Elliptical steel openings and a curving promenade created demanding intersections with surrounding framing and curtain walls.
Six independently moving zones
Hinged seismic connections, bearing assemblies and yield-line bracing required careful detailing of the interfaces between structural zones.
Bearing supplier coordination
BIM reviews with the bearing pad supplier helped align steel connections, bearing locations and movement requirements.
Three-story cantilever
Precambered trusses supported three levels of retail space projecting approximately 20 feet over an open area.
Precast garage interfaces
Accurate embed locations were essential to connecting structural steel with large precast panels manufactured off site.
OUR APPROACH
Frequent BIM reviews across the steel project team.
The project required close coordination between Anatomic, Allied Steel, the erector, structural engineers and other participants.
Frequent model-review sessions provided a shared three-dimensional reference for resolving curved geometry, seismic connections, cantilevered trusses and precast interfaces.
This coordinated workflow supported delivery of the steel detailing package within the project’s three-month schedule.