Sun Devil Stadium - Tempe Arizona

The Problem

Hollow core slabs and concrete topping bearing on steel beams are the concourse walkway structural system at Sun Devil Stadium, Tempe Arizona. Due to poor joint detailing and years of wash down, the beam top flanges and hollow core bearing angles were losing significant section due to corrosion. Jacking the hollow core slabs and beam were required to repair the bearing and strengthen the beams.

The Solution

Restruction Corporation designed and implemented a unique jacking method insuring fast track construction scheduling. Upper grandstand support beams with excess capacity were used to lift the hollow core planks and concourse beams. The unique jacking system eliminated two levels of conventional jacking and shoring towers. The steel concourse beams were cleaned of corrosion and top plated for strengthening. Jacking of the concourse beams, to provide active strengthening was completed with a cross member attached to the hollow core jacking system. The hollow core bearing angle was replaced in its entirety providing new bearing pad.

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