Safety Concept and Partial Factors for Bridge Assessment under Military Loading
Keywords:Bridge assessment, military traffic, load simulation, safety concept
The use of civilian bridges by military vehicles is in the NATO countries regulated and governed by STANAG 2021. This standard, however, does not fully deliver some of the essential aspects important to safe and reliable crossing of military vehicles over existing bridges. This paper aims at investigating the military loads and at developing partial factors that can be utilized during the assessment of bridges for military traffic. A number of factors must be taken into account including target reliability index and uncertainties related to dynamic amplification factor, static load due to military vehicle and applied model for load effect. The results show that the military partial factors can be generally considered in a range close to or smaller than those values given in civilian codes.
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