Designer: Greg Goss, Tom Knittel
BNIM Architects
106 W 14 St, Suite 200
Kansas City, MO 64105
816.783.1500
Project Team: Paul Martin, Tony Birchler
A Zahner Company
Architectural Metal
1400 E. 9 ST.
Kansas City, MO 64106
Steve Huey
Wallace Engineering
818 Grand Blvd, Suite 1100
Kansas City, MO 64106
1ST Place - $1,000 prizeSubmitted by:
Greg Goss
BNIM Architects, Inc.
104 West 14th Street, Suite 200
Kansas City, MO 64105Perforated Pavilion
Point Pavilion - North Charleston, SC, Cable supported Perforated Aluminum Panel Sunshade
The Point Pavilion is an iconic band shell at the Riverfront Park in North Charleston, South Carolina. The Pavilion, taking reference from the surrounding structures of the Navy Yard, adjacent bridges, and woven sea grass baskets indigenous to the region, provides a 30’ x 50’ sun shade for outdoor performances. Integrated into the overall plan for Riverfront Park, Point Pavilion anchors the park at the intersection of Noisette Creek and Cooper River serving as a park destination. The open air structure is intended to allow views to performances both from the park lawn and from the water.
The six arcing tripods were manufactured in the shop directly from a 3D CAD model; no shop drawings required. 12 inch steel tubes were rolled and cut according to this model. The central connection box serves a dual purpose. It takes all the force generated by the sail (designed to take 150 mph hurricane winds) and directs it to the ground and also serves as a junction box for lighting and sound systems that mount on custom brackets. Once constructed, the tripods were hot dip galvanized then shipped to the site.
The perforated polished aluminum panels are supported by steel cables that vary in sag from front to back, opening the sail up to the park lawn. These panels were designed to reflect a woven pattern, provide unique shading, and be acoustically transparent. The perforation patterns were also designed using CAD programs and punched directly from a computer file. Once punched, the panels were rolled to supply stiffness and also to bring a pillowed feel to the sail as a whole, much like the texture of a sea grass basket.
Three custom stainless steel clips are attached at the ends of each panel to secure them to the steel cables. At contact points between the clips and the cables, an ultra high molecular weight (UHMW) tape is applied. This tape has a very low coefficient of friction and allows the assemblies to rotate freely around the cables, decreasing the strain in high winds. During sunlight hours, the perforations are ghosted on the tabby concrete below. In the evening the sail becomes a negative, reflecting the integrated lighting and allowing the night sky to be seen through the perforations. Day or night, the sail plays with light giving the pavilion a special sense of place within the landscape.
Boca Raton, FL 33486 561-447-7511 IPERF.org
