GUIDELINES FOR IMPLEMENTATION OF HIGH SPEED TRAINS ON EXISTING CONTINUOUS CONCRETE SPAN

Abstract

Purpose. Analysis of existing high-speed railway traffic Ukraine, fitness track and engineering structures for high-speed trains, determine the possibility of the introduction of high-speed railway traffic on existing reinforced concrete bridge with a continuous spans. Determination of factors influencing the dynamic behavior of bridges under moving loads, influence design parameters and rolling stock. Interaction train and span. Methodology. The choice of a continuous reinforced concrete spans for the analysis, development models span for dynamic analysis,dynamic analysis and calculation behavior spans under high-speed loading. Findings. Analyzed the work of continuous reinforced concrete span under load depending on the speed. These values deflections and accelerations span for different speeds. The possibility of crossing high-speed trains with different speeds. Originality. The possibility of crossing high-speed trains on the existing span of the parameters of the stress-strain state of a moving load (maximum displacement and acceleration span). Practical value. Determination of the suitability of existing reinforced concrete spans of continuous movement for high-speed passenger trains at different speeds.