Випуск 16 (МТ)

Permanent URI for this collection

http://crust.ust.edu.ua/handle/123456789/11686

Browse

Browsing Випуск 16 (МТ) by Subject "bridge"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Analysis of the Problems of Sections With the Transitional Rigidity Indicator in World Bridging
    (Дніпровський національний університет залізничного транспорту імені академіка В. Лазаряна, Дніпро, 2019) Marochka, Vitalii V.; Boboshko, Stepan H.
    EN: Purpose. To analyze the problem of areas with a transitional stiffness on the approaches to the bridges based on the experience of European and American bridge-building. To find out the root causes and methods for detecting track defects in transitional stiffness zones. To propose a pilot model for the development of transitional stiffness areas based on the experience of developed countries in Europe. Methodology. Collection of data on the causes and nature of the occurrence of bumps on approaches to bridges based on the experience of specialists in the design, construction and operation of railway and highway bridges. Analysis of methods of arrangement of transition areas on approaches to bridges in European countries. Results. An analysis of the literary sources of developed countries of the world on the problem of the origin and methods of detection of bumps in areas with transitional stiffness on the approaches of bridges was performed. The results were collected on ways to identify problems in areas with transient stiffness and how to solve them. A model for mathematical and experimental studies was proposed. Origi-nality. Scientific interest is that, despite the extensive experience of developed countries of the world, the Ukrainian norms still do not have a clear mechanism for identifying and characterizing problems of track geometry in sections with transitional stiffness. Thus, studying the experience of more advanced countries in the field helps to con-sider the problem more clearly and standardize its definition. Practical value. If proposed model of reinforcement of transition stiffness areas will be confirmed it allows to reduce the cost of maintaining of the track and to solve the problems of the transitional areas at the stage of bridge construction, that is, before its immediate occurrence.