From the standpoint of controlling the behavior of steel floor beams during the operation of a structure, the use of elastically compliant joints in the beam support nodes at the construction stage is considered. Elastic joints are an intermediate link between an ideal hinge and an absolutely rigid connection of the beam ends to the main load-bearing structures and can provide an effective structural solution for connecting elements of any materials with a real reduction in their stress-strain state. The use of resilient joints can be an effective solution for running roofs and ceilings, in load-bearing structures of steel frames, multi-span beam structures. This approach, in principle, is also applicable to beam structures of a through section.

Keywords: system behavior control, steel structure nodes, elastic joints, joint stiffness, analytical solution, finite element method, high-strength fiber

The article analyzes the peculiarities of the organization and technology of repair of urban roads in conditions of dense traffic. The technological parameters of pavement repair, considering uneven temperature and peculiarities of compaction of hot asphalt-concrete mixtures, have been substantiated.

Keywords: Urban roads, multi-lane highways, pavement repair, roadway, asphalt pavement, defects

The use of adhesive joints for reinforcing elements of steel structures is discussed. Adhesive joints provide the least costly way of joining elements of any material without disturbing their structure. Of particular interest is the reinforcement of structures in stretched zones using high-strength fibers such as glass and carbon fibers, as well as polymers reinforced with them. The main problem in this case lies in the peculiarities of the distribution of shear forces along the length of the adhesive layer. The article discusses a way to solve this issue.

Keywords: adhesive bond, adhesive layer, shear strength, analytical solution, finite element method, high strength fiber, carbon fiber, glass fiber