There are a number of actual problems of modern bridge construction in a context of static-dynamic interaction of bridge designs and the railway rolling stock is considered. The integrated classification of settlement models for research of joint dynamics of system “bridge-train” is offered, the basic criteria and the factors influencing result of numerical modeling and dynamic calculation of bridges are allocated.
ACTUAL PROBLEMS OF INTERACTION OF INFRASTRUCTURE AND ROLLING STOCK
The document considers a number of actual problems of modern bridge construction in the context of static and dynamic interactions between bridge structures and railway rolling stock. We propose a classification of approximate computational models for studying the joint dynamics of the “bridge-train” system, and highlight the basic criteria and factors influencing the results of simulation and dynamic analysis of bridges.
1. INTRODUCTION
More than 100 years ago N. Garin-Mihajlovsky (the writer, the researcher, bridge constructor, graduated from the PGUPS) named the moving train «the nightmare for the engineer». Continuing this thought, it is possible to tell that for the scientist and the designer train movement on the way with artificial constructions (including the modern wide-span bridges) – «the double nightmare». And if movement occurs on an elevated overpass (fig. 1) scientific problems arises even more. (…)
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