Evaluation and Repair of Three Severely Corroded Service Center Floors

A follow-on presentation to the discussion of our evaluation of over 1500 tire and lube facilities across the United States that prescribed immediate repairs where necessary, reinforcement where deterioration reduced capacity below acceptable levels and coatings necessary to protect structural steel and structural concrete (i.e. our 2019 Philadelphia presentation). This will be an in-depth presentation of how repairs were specified for (3) specific types of structures. The (3) structure types are exposed structural concrete, composite metal deck and fully reinforced form deck slabs all supported by steel structures and reinforced concrete walls. Presentation will include before, during and completion photos of each project discussed. Again, touch on the evaluation processes to include demand to capacity ratios review, evaluation system and inspection form, triggers to determine when shoring is necessary, calculation of capacities per AISC 360, ACI 318, ACI 562 and local building codes. Discuss how the repair specification that accounted for carbonation, ASR and corrosion of old reinforced concrete structures, guided the general contractor through the repair of the (3) projects.

Presentation Learning Objectives:

1. Determine demand to capacity ratios of the (10) structural systems evaluated
2. Create evaluation system and inspection form to rate damage for repair prioritization
3. Develop triggers to determine when immediate shoring or closure required per ACI 562
4. Evaluations and calculations per AISC 360, ACI 318, ACI 562 and local building codes