Мости та тунелі: теорія, дослідження, практика (ДІІТ)
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ENG: Bridges and tunnels: theory, research, practice
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Browsing Мости та тунелі: теорія, дослідження, практика (ДІІТ) by Author "Solomka, Valentina I."
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Item Parameters of Typical Continuous Steel Truss Spans under a Yigh-Speed Movement(Дніпропетровський національний університет залізничного транспорту ім. акад. В. Лазаряна, Дніпро, 2017) Reshetnov, Artem Yu.; Solomka, Valentina I.; Ovchynnykov, Pavlo A.ENG: Purpose. Determination of the stress-strain state of a typical continuous steel truss span by calculation according to national norms and computer simulation in the conditions of passage of high-speed passenger trains. Methodology. In this work, the stress-strain state of a continuous truss span of the typical project No. 3 501.2-166 for the possibility of its application in areas with perspective high-speed railway traffic was investigated. Calculation of the specified span structure for DBN V.2.3-14-2006 «Constructions of transport. Bridges and pipes. Design rules» for railroad loading С14 was executed. The cross-sections of the elements of a continuous truss span were calculated and the necessary checks performed. For the given span structure in the software complex a model was developed and the stress-strain state at various speeds of railway transport according to European and national norms was investigated. The acceleration and deflection of a continuous steel truss span were determined and their comparison with normative requirements was performed. Findings. As a result of simulation in the software complex for a continuous steel truss span, acceleration and deflection under the action of cargo and passenger load at different speeds of movement were determined. The cross-sections of the elements of a continuous steel truss span were calculated. Originality. The results of the study can be applied in the development of national regulatory documents on high-speed rail transport and in the design of bridge structures with continuous truss spans in areas with high and higher-speed railway traffic. Practical value. The obtained results of the research will allow to effectively use continuous steel truss spans of typical designs in areas with high– and higher-speed railway traffic.Item World Experience of Design of Bridges and their Operating Conditions on Railways with a High Speed of Trains(Дніпропетровський національний університет залізничного транспорту імені академіка В. Лазаряна, Дніпропетровськ, 2014) Solomka, Valentina I.; Ovchinnikov, Pavlo А.EN: Purpose. Analysis of world experience of design bridge structures and their operation conditions for higherspeed railways. Browse questions of experimental and theoretical research of interaction of bridge structures and moving load. Methodology. To perform the analysis of published works that display world experience on design bridge structures and their operation conditions for higher-speed railways, university’s library resource and possibility of unlimited Internet access were used. Findings. In this article the result of literature sources research, which displays world experience of design and computation of bridge structures on high-speed railways are presented. Originality. Results of this work show the present state of in research interaction of bridges and rolling stock on the high-speed railways of Ukraine and the world as well as of possibilities of using bridges, exploited for a long period of time, under loads which move on of high speed and what are features of work construction elements in this case must be considered. Practical value. A problem that regarded in the article will allow us to develop methodology of calculation for bridge structures that are in operation on the high-speed railways and apply results of the science work when developing of new projects span structures.