PIER 57 FERRIS WHEEL
Helix Steel was used to fully replace all of the #6 rebar cages in 53 piles.
Pier 57 is a Seattle waterfront location favored by tourists and locals. It was lengthened to construct a 156 ft diameter Ferris wheel which opened in 2012. Helix® Micro-Rebar™ reinforcement was incorporated into the project design to fully replace the #6 rebar cages inside 53 piles. This application allowed the owner significant reduction in material and labor cost.
A total of 980 yd3 of concrete were placed by Manson Construction, pumped by Conco Pumping with concrete supplied by Cal Portland of Seattle. There were 23,420 lb of Helix® Micro-Rebar™ reinforcement added into the concrete at the batch plant that replaced all of the structural rebar cages.
Contractor: Manson Construction
Location: Seattle, Washington
Application: Pier Foundation
Original Design: 30” diameter piles, 8- #6 and #3@12’’ hoops
Helix Dosage: 25 lb/yd3 and 31.5 lb/yd3
ADDED HELIX STEEL VALUE
Increase in Shear Strength: 111 %
Increase in Modulus of Rupture: 40 %
Increase in Durability: 45 %
Increased Speed of Construction: 4 Days
Reduction in Carbon Footprint: 40 Tons