Project Details
Removable Roof System Installation & Modifications
- Installed the five-panel removable retractable roof system, a fan-shaped configuration designed to open and close over the playing field.
- Each movable roof panel spans approximately 600 feet, traveling along a curved rail and bogie system integrated into the stadium structure.
- Performed erection and alignment of roof panel support steel, including bogie frames, end trucks, rail interface components, and pivot assemblies.
Bearing Replacement & Structural Modifications
- Executed replacement of original steel-on-steel thrust bearings with new roller bearing assemblies at five pivot points across three elevation levels.
- Installed permanent access platforms and temporary structural steel to support synchronized jacking operations.
- Added localized reinforcement, stiffeners, and 3-ft-deep welded box beams (“jack brackets”) to roof truss tub sections and fixed structure to safely transfer jacking loads.
- Engineered all temporary works to avoid inducing adverse loads or rotation impacts during pivot movement.
Precision Jacking & Alignment Operations
- Performed multi-stage jacking operations, lifting each roof panel as many as five times to remove bearings, install shims, and align bolt holes.
- Coordinated controlled raising and lowering cycles to achieve final geometry and bearing tolerances.
- Verified final alignment to ensure smooth roof travel, braking performance, and long-term operational reliability.
Welding Execution Under Extreme Conditions
- Completed extensive field welding in confined six-foot-wide work rms surrounding each pivot location.
- Welded under sub-zero winter conditions, with steel preheated to 350–400°F to prevent weld cracking.
