TEST OF GERMAN UNDERGROUND PERSONNEL SHELTERS
AMMANN AND WHITNEY NEW YORK
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The objective of the tests was to investigate the predicted behavior of German underground personnel shelters, equipment, and certain instrumentation. Data obtained was used for evaluation and improvement of present design criteria. Nine reinforced-concrete underground shelters, designed by German engineers, were tested at overpressure ranges as determined from average blast-line instrumentation measurements. Reinforcing steel, doors, and ventilation equipment were received from West Germany and were incorporated in the shelters. Preshot and postshot precise location surveys were made to determine the total lateral and vertical motions of the structure as a result of the blast. Blast instrumentation used several types of pressure gauges and radiation measurements were taken using U. S. gamma-radiation film dosimeters, gamma-radiation chemical dosimeters, neutron detectors, telemetering gamma dosimeters, and German gamma chemical dosimeters. Mice were used as biological specimens in environmental tests in seven of the nine structures tested. Ground shock spectra were recorded under Project 1.9 for free field conditions and for the interior of a shelter.
- Structural Engineering and Building Technology