Szukana fraza: [Abstrakt = "The paper analyzes various formal concepts related to the live loads of road bridges. Then a review of the technical and construction regulations in force in this respect is carried out, with particular emphasis on the military load classification \(MLC class\). It points out the lack of consistency in the polish regulations in force and the consequences that may result from this. For 30 different bridge structures designed for the load class A according to PN\-S\-85\-10030, and located within one of the motorways and the expressway, the MLC load class was determined. The examples cited show that load class A does not guarantee MLC class 100\/150 in all cases. Different parameters of a bridge structure are analyzed, which may decide about the MLC load class assigned to it. In addition, attention is paid to the lack of regulation regarding the determination of horizontal loads caused by MLC loads and their possible impact on the design of bridges. The paper ends with conclusions from which the most important postulate the necessity of unambiguously defining the MLC class for designed or existed bridge structures, especially in the course of motorways and expressways, as well as supplementing the existed regulation regarding horizontal loads from loads caused by military vehicle."]

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