Introduction. Structures made of metal corrugated structures (MCS) – culverts, small and medium-sized bridges, overpasses – are quite common modern objects of transport and hydraulic construction in many countries of the world. At the proper level of design, such road constructions are much more efficient than constructions in terms of their technical and economic indicators of the same class from massive reinforced concrete and metal structures. Therefore, it is important to have more ideas about the operation of these rational and specific objects under the road embankment in the “building – soil” system and the corresponding more correct methodology for their calculation.
Problems. In the part of calculations, the existing regulatory and methodological documentation for the design of road structures with MCS is not sufficiently complete and does not reflect to the required degree the peculiarities of the operation of such structures of various cross-section forms. To a certain extent, this complicates the design and slows down the spread of such structures from MCS in the practice of road construction.
Purpose and task. To show the possibilities of compiling the method of calculation of road structures from MCS according to the deformation criterion, which is most relevant for flexible vaulting under the embankment, using simple and understandable calculation schemes of various cross-section forms and generally accepted laws of construction mechanics and mechanics of soils and underground structures - the main goal and task of this work.
Research methods and results. On the basis of the calculation-theoretical analysis of the operation of road structures made of MCS in the conditions of interaction with the soil of the embankment using analytical methods and the finite element method (FEM), the possibility of developing a methodology for their practical calculation, which more fully reflects the actual operation of the considered structures, is shown.
Conclusions. The results of the work show that there are grounds for supplementing and improving the methodology for calculating road constructions of various forms of intersection with the MCS. The data presented in the article complement the idea of the operation of road structures of this type. The possible initial calculation positions and directions for further work on supplementing and improving the existing method of calculation of the considered road structures with MSC.
