SoFi Stadium: Setting A New Standard In Stadium Design And Construction
SoFi Stadium, the breathtaking new home to two NFL franchises, set out from the beginning to become the standard by which all stadiums will be compared. With a development and construction cost reportedly in excess of five billion dollars, this is the most ambitious stadium ever built. SoFi Stadium is the centerpiece of a 298-acre mixed-use development featuring retail, commercial office space, a hotel, residential units, and outdoor park spaces.
The stadium was designed by renowned stadium architecture studio, HKS, with assistance from structural engineering firm, Walter P Moore. Enclos Tensile Structures was contracted in a design-assist role with the project consultants in developing a technically and commercially viable cable net roof structure and ETFE cladding system, as well as overall project budget, schedule, and coordinated logistics plan.
The stadium is built with an arching steel truss compression ring supporting a double grid cable net roof covered with translucent ETFE and surrounded with perforated aluminum panels. The roof, the largest of its kind ever built, is comprised of 302 ETFE panels, including 46 mechanized vents that allow the heat generated by more than 70,000 spectators to dissipate. The massive roof consists of more than 1400 tons of double orthogonal grid steel, and approximately 67,000 tons of ETFE membrane, secondary steel, gutters, cross clamps, cable struts, and retractable vents. The 20,000-ton steel truss compression ring reaches the ground at three points and has additional support from thirty-seven earthquake-resistant columns as high as 100-feet from grade. The 13-acre stadium roof is open on three sides and is a completely separate structure seismically isolated from the stadium bowl.