EVALUATION OF NUCLEAR BLAST EFFECTS ON AEC TEST-SITE FACILITIES (PARTS I, II, AND III),
HOLMES AND NARVER INC LOS ANGELES CALIF
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The objective of the studies was to obtain information of value for the design of blast-resistant structures. The project was divided into the three parts. Part I measurements of retaining-wall displacements. The purpose was to obtain information that would verify design assumptions regarding the direction of the net horizontal force acting on stems of retaining walls subjected to blast from air bursts directly above. Data were obtained on the permanent displacements of retaining walls and adjacent soil produced by nuclear blast loading. Results indicated that the effective transient thrust was outward. Part II measurements of tower displacements. A need exists for better information on the resistance of guyed towers to blast so that tower spacing can be established in planning test operations. Observed response was in fair agreement with predicted response. A recommendation is presented of yield-distance relations for limiting blast load on a typical 500-ft guyed tower. Part III measurements on miscellaneous structures. In addition to the two planned experiments of Parts I and II, studies were made of two structures that were used by other projects, an underground rigid structure and bell covers.