In the first part of Diploma Thesis there are elements of railroad superstructure described in detail,
which decisively influence on railroad condition, considering the Rule Book of Railroad
Superstructure issued in the Official Gazette of Republic of Slovenia with number 92/2010. There are
railways, railsteps, railbed, tightening and binding tools described.
In the second part there is a theory for calculating tensions due to temperature change and bend
presented. In calculating tension due to bend there is Zimmerman method presented and dynamic
impacts are taken into consideration with a help of Eissmann theory.
In the last part I have made actual calculation based on gathered starting point data. Using it I have
calculated tensions in different shapes of standard railways and in different conditions of upper
structure. I have made calculations tensions due to temperature changes in case of non-friction laid
railways and friction laid railways. There is also a calculation of tension due to bend having a
calculation of subsidence, bending moment, pressure and a calculation of bending tensions in
dynamic traffic load.