Simplified Global Analysis of Steel Pipe-Racks Subject To Accidental Vapor Cloud Blast Explosions
Vapor cloud blast explosions are very common in operating refineries and industrial plants. Limited guidelines are available in industry for design steel modules or pipe-racks subject to blast loading. The paper aims to provide industrial guidelines for practicing engineers and steel fabricators to optimize the design of steel modules and pipe-racks subject to blast loading. Simplified procedure is presented to evaluate global dynamic response of steel pipe-racks and modules that are commonly used in petrochemical plants and refineries. The loading conditions and structural design criteria are first presented. The formation mechanism of vapour cloud explosions is then briefly described. Numerical example is then provided to illustrate the computation procedure. The approximate procedure avoids excessive computational cost required by numerical procedures and can be used in practice to evaluate dynamic response of pipe-rack subject to vapor cloud blast loading.
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