The Bow Hi-Rise
The Bow is a truly iconic building and is inarguably one of the most complex high rises in North America, if not globally, from a structural framing point of view.View Project »
We call these structures “Basket Columns” to aptly describe both their form and function. They are structures shaped like baskets (form) and they are holding everything up (function)! This impressive architecturally exposed steel structure stands in the heart of NYC’s Financial District. As the entryway pavilion of the World Financial Complex, and home to the headquarters of Brookfield Properties, this awe-inspiring structure has more than 70,000 pedestrians walk between these basket columns each day. The central supporting, two spiraling steel basket structures rise 55 feet from the ground to hold up the roof, creating a transparent jewel box that serves as the grand entrance.
This is a shining example of how we brought an architect’s vision to life. With the architect’s vision in mind and the structural drawings in hand, we set out to figure out a way to actually build the structures. Always trying to incorporate the AESS flow, we fabricated and installed the architecturally exposed steel structure supporting a curved roof structure, complete with pre-tensioning for glass installation. We also machined, painted, and erected the structures.
This type of complex project definitely increases our adrenaline and creates a few gray hairs. It took a great deal of ingenuity and skill to make the fabrication and assembly of the ‘basket columns’ look like a thought out, yet simple process.
The level of fabrication and finishing was highly demanding on this project as all connections are exposed needed to be connected in the field. The balancing of cambering and pre-tensioning the roof structure also created challenges to ensure integration with the finishing glazing elements.