STRUCTURAL AND TECHNOLOGICAL SOLUTIONS OF STRUCTURES OF BRIDGE PROPERTY INVENTORY IN THE CONSTRUCTION OF TEMPORARY BRIDGE CROSSINGS

Purpose. Research of constructive and technological solutions for the use of inventory bridge property during the construction and temporary restoration of bridge crossings. Development of recommendations regarding the multi-purpose use of metal beams of inventory bridge property during the construction and temporary restoration of bridge crossings under normalized loads. Method. To achieve the set goal, the work was carried out: the study of structural and technological solutions for the use of inventory bridge property (Peyne beams) in the construction and temporary restoration of bridge crossings, highlighted in the literature; study and generalization of design experience and technological solutions of combining wooden structures and details with metal beams in the construction of temporary bridge crossings. The results. The result of this work is collected data on the advantages and disadvantages of using metal span structures of bridges in combination with wooden structures and elements. Analysis of the possibility of using these structures for quick restoration of bridge crossings and ensuring safe traffic. Originality. It consists in the fact that for the quick and high-quality restoration of the destroyed transport infrastructure, in particular, road and railway bridges, it is proposed to use metal beams of long-term storage inventory bridge property in combination with wooden structures and elements included in the joint work. This will make it possible to rationally use the existing reserve of materials, high rates of recovery and reliable provision of traffic of the corresponding transport. Practical value. Based on the obtained research data, it is possible to conclude that the constructive and technological solutions of the use of inventory bridge property (Peine beams) in the construction and temporary restoration of bridge crossings have a number of technological advantages that make it possible to ensure the effective restoration of railway structures destroyed by military actions in a short time. The method of combining wooden structures and elements with metal beams of span structures of the carriageway during the temporary restoration of road bridges increases their carrying capacity.