Field Evaluation Procedures

The arena roof was evaluated using different nondestructive techniques consisting of surface penetrating radar (SPR) scanning, impact-echo (IE) testing and infrared thermography (IT). A geometry survey of the roof was also conducted, as well as a general visual inspection of the roof, compression ring beam and columns. Invasive probe openings were made at select post-tensioning components in order to assess the general condition of the post-tensioning system.