Cancer Center HMB Implosion Event Vibration Monitoring

Cancer Center HMB Implosion Event Vibration Monitoring

Houston
Texas

Walter P Moore evaluated vibration levels in the MD Anderson Cancer Center Ambulatory Care Building (ACB) and their Cancer Prevention Building (CPB) during the scheduled implosion of the Houston Main Building (HMB) located in Houston, Texas. The Houston Main Building was an 18-story building constructed in the 1950s and located directly adjacent to both ACB and CPB. The clear distance between the building and ACB/CPB buildings that house data centers was less than 100 feet. Due to the sensitivity and value of the data center equipment, MD Anderson asked Walter P Moore to measure and evaluate the vibration levels experienced by both facilities during the implosion and subsequent debris removal.

High sensitivity accelerometers and geophones were used prior to the implosion event to establish baseline readings for both data centers during normal operations. During the implosion, event vibration data was collected in both the structural and raised floor systems within the data centers simultaneously. Data was collected at six locations for comparison with the baseline readings and the vibration limits imposed by the device manufacturers.

Based upon the results of this vibration study, it was apparent that the vibration levels during the implosion event marginally exceeded the operating limits for select computer equipment for a fraction of a second. In contrast, the sustained vibrations fell within the predicted guidelines. All measured data fell below the thresholds for structural damage as reported by the Office for Surface Mining and Reclamation.