Development of a design basis tornado and structural design criteria for Lawrence Livermore Laboratory's Site 300

Abstract

Number of Tornadoes Exceeding Threshold Ulndspeeds. . 10 Recommended Tornado and Extreae Wind Risk Hodels for ,. Site 300 '' Values of Penetration Coefficient K for Reinforced Concrete 33 Idealized Resistance-Displacement Function for Ductile Materials 33 Plan View of Example Structure 39 Structural Response of a Reinforced Concrete Hall. . 45 Reinforced Concrete Mall Cross Section 46 Force-Time Function and Resistance Function 46

Assessment of High Wind and External Flooding (Excluding Tsunami) Hazards in Site Evaluation for Nuclear Installations

“…Ref. [113]), intensity path area relationships [114][115][116] and the effect of target size [117,118]. Twisdale and Dunn [119] used a Monte Carlo simulation with a stochastic event model, tornado-target interaction geometry and tornado wind field probabilistic models.…”

“…[120]. Single point hazard curves developed by three different investigators, Fujita, McDonald and Twisdale for the Savannah River site in South Carolina, USA, are presented in Refs [123][124][125]. The differences among these curves illustrate some of the systematic differences in approaches, and hence uncertainties, in the resulting tornado hazard curves.…”

“…However, simpler engineering models are typically used in tornado wind, missile and APC loading analyses. References [116,155,163,164], as well as a model of probabilistic parameters described in Refs [127,128], have been the most commonly used sources of information in risk assessments for nuclear power plants.…”