Supreme fabricated the steel girders, bracing, tower steel and stairs, and engineered the installation of the structure and the main structural steel of the pedestrian bridge and tower.
Supreme used its expertise in 3D modeling and in-house shop-drawing development to work through the challenges it and DIALOG faced. The teams worked together and leveraged the 3D model to attain an accuracy of one to two millimeters in the final placement of steel.
Using the details generated by the models, Supreme was able to size the appropriate cranes and identify the best location that would minimize traffic interference and get the job done. By pre-assembling large elements of the pedestrian bridge and taking care to understand and prepare for the deflections of the overhand and tower connections, Supreme was able to install the bridge safely with minimal traffic interruptions.
Problems involved making the final connection at the tower to allow for the correct expansion, contraction and rotations of the bridge when it is in service, while keeping the proper tolerances to enable the operation of an elevator in the tower.