OPERATING STATE OF SPAN CONSTRUCTIONS OF EXISTINGMETALLIC BRIDGES ON AUTOMOTIVE ROADS IN THE WESTERN AREAS OF UKRAINE
By using the examples of large – scale inspections of metallic bridges the defects and damaqes of elements, the degradation of structural materials are shown. The examples of structure imperfection, tipical defects, operation drawbacks are illustrated. Construction defects are the most numerous and can significantly affect the operational reliability and durability of the surveyed bridges. Basically it is: departure from the project, use of substandard materials and violation of production technology; their share accounts for 55% of the surveyed bridges.