Structural Cost Studies for Hardened Shelters (500-Man and 1000-Man Capacities)

摘要

Applying the cost and design relationships developed earlier (AD-429 134), the in-place structural costs of 500-man and 1000-man capacity fully-buried shelters were identified as functions of structural material, structural system, shelter configuration, and design level of loading. By combining the optima of these designs, minimum-structural-cost relationships were developed for 100-man, 500-man and 1000-man capacity shelters as functions of overpressure level. The range of interest, included 10 psi to 200 psi overpressures produced by nuclear yields of one MT to 100 MT. Once design overpressures have increased to some unspecified level, the absolute magnitude of which decreases as shelter design capacity is increased, it is found that per occupant structural costs are relatively insensitive to increasing overpressure. It is also found that structural per occupant costs may decrease appreciably, although at a decreasing rate, as shelter design capacity is increased. Finally, the economic importance of identifying the minimum-cost structural design for each proposed shelter application is emphasized. (Author)