ПЕРСПЕКТИВИ ТА МОЖЛИВОСТІ БУДІВНИЦТВА МОСТІВ ЗІ ЗМЕНШЕНОЮ КІЛЬКІСТЮ ПРОМІЖНИХ ОПОР НА АВТОМОБІЛЬНИХ ДОРОГАХ УКРАЇНИ ІЗ ЗАСТОСУВАННЯМ СУЧАСНИХ ТЕХНОЛОГІЙ

Abstract

A certain number of urban overpasses in Ukraine were built in the 1950s and 1960s with short spans and a large number of intermediate piers (e.g., Beresteyskyi overpass in Kyiv). The presence of intermediate piers on the roadway creates an emergency situation due to the disappearing lane before entering the structure on both sides, which leads to the accumulation of cars during rush hour. Such overpasses require reconstruction, which should include a reduction in the number of intermediate piers. As part of pre-design surveys during the reconstruction or construction of new overpasses, it is advisable to conduct laser scanning of the surrounding area to ensure the most accurate reflection of the existing infrastructure, harmonious interaction of the structure with the terrain, optimization of earthworks and use of construction materials. The use of laser scanning is a modern way to control construction and is in demand around the world. Introduction. This article reveals the need to reconstruct urban overpasses with a large number of intermediate piers to avoid the formation of accident-prone areas at the entrances to the structure. Urban bridges and overpasses require a special approach to their design and construction, as in these conditions it is recommended to take into account the aesthetic component, which includes architecturally expressive design solutions. The article presents proposals for the design of such an overpass using laser 3D scanning, which allows for a more detailed study of the design site and simplifies the control of construction work. Problem statement. The presence of intermediate piers on the roadway under overpasses creates an emergency situation due to the disappearing lane, as well as the accumulation of cars during rush hour.