Reinforced concrete bridges with skew intersection of obstacles (the skew in the plan bridges) with beam cross-ribbed span structures have characteristic constructive differences in the layout the floor beam system compared to straight systems. In particular, it is the shift in the plan of the main beams on the supports and skew or straight orientation of the transverse beams (diaphragms) that unites main beams across the span into beam cross-ribbed grillage. These features considerably complicate the theoretical creation of their calculation models of spatial calculation. Therefore, in most cases, for practical purposes this problem is solved not theoretically, but through full-scale tests of skew in the plan span structures. In this paper, the results of tests of span structures with skew and straight orientation of transverse diaphragms are presented. According to their results, the actual nature of spatial work and regularity of the distribution of forces between beams is investigated, which made possible to perform calculations of span structures on normalized temporary loads.
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