Retractable roof system for stadium

  • US 6,789,360 B2
  • Filed: 01/22/2002
  • Issued: 09/14/2004
  • Est. Priority Date: 01/23/2001
  • Status: Active Grant
First Claim
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1. A stadium roof assembly, comprising:

  • at least one major truss spanning a distance between a first support location and a second support location that is at least 200 feet, said major truss being structurally configured as a tied arch having a curved convex upper portion and a tensioned lower portion that extends directly beneath said curved convex upper portion and is shaped, sized and positioned to assume most gravity induced stress within the major truss as tension;

    at least one roof member that is secured to said major truss;

    a curved, convex guide track that is secured to said curved, convex upper portion of said major truss, and wherein said roof member is constructed and arranged to be moved over said guide track; and

    a retention mechanism for preventing said roof member from being lifted upwardly with respect to said guide track wherein said retention mechanism comprises at least one retention element for engaging a downwardly facing surface of said guide track in the event of initiation of upward vertical movement of said roof member relative to said guide track.

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