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Calculation type
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Currently not used. Only the type Time history is available. |
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Create TDF report
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A TDF report of the calculation is created if the checkbox is checked. The desired file name of the report can be specified in the respective input field. |
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Function "Calculate"
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With this function button the analysis is started. The time history calculations are performed successively for all selected train models and required travel speeds. The investigated time interval is automatically defined in the program and includes the period from the arrival of the first load at the begin of the start-ramp to the arrival of the last load at the end of the end-ramp. During the calculation, the characteristic result values are presented in the graphic windows below the input functions. |
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Diagram of the maximum accelerations as a function of the travel speed
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The uppermost diagram contains the maximum vertical acceleration occurring during the train passage in any of the relevant (max. 39) node points of the structure. The maximum acceleration is the final result value of the individual time history calculations. The curves for the different trains are presented in different colors, describing the max. acceleration as a function of the travel speed. The limit value is indicated by a red line. |
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Diagrams of the time history during the passage of a certain train
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The diagrams below show the time history of the characteristic state variables of the bridge structure during the passage of the train. These state variables are the vertical displacement, the velocity and the acceleration of a certain point of the structure. The considered point is the center point of the 1st span in case of single or double span girders, and the center point of the 2nd span in case of 3 span girders. For WIB-structures, it is the center point of the center composite girder.
In case of take-over of RM data, the characteristic point is the middle point of the points specified in the RM set (maximum 39). If the set contains more than 39 points, the middle point of the first 39 points (i.e. the 20th point) is taken.
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