Plate Forces/Moments |
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Trace and graphically display the vehicle loading condition (corresponding moving load case and location) that results in the maximum/minimum force of a plate element. The loading condition is converted into a static loading and produced as a model file of the MCT type. This is an extremely useful feature when we wish to find the loading condition that creates the maximum or minimum force. |
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From the Main Menu select Results > Moving Load > Moving Tracer > Plate Forces/Moments. |
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Moving Load CasesSelect a moving load case (vehicle type) that is to be traced and located at a position satisfying the max/min internal force. Key Element: Enter a plate element number, or click the entry field and the desired plate element in the working window. Scale Factor: Enter the drawing scale factor for the influence line/surface. This does not affect the influence line/surface values.
Type of DisplayAssign the type of display.
Maximum ValueProduce the maximum or minimum value calculated from the moving vehicle load analysis
: Where Influence Line or Influence Surface analysis has been carried out, the moving load case, which produces the maximum or minimum results, is converted into a static loading and produced as an MCT type. Note. Auto-generation of centrifugal forces as per EN1991-2:2003 Centrifugal force due to vehicle load in the horizontally curved bridge can be generated as a static load by selecting "Centrifugal Forces" option. Following vehicle types are supported: Road Bridge: Load Model 1 Standard and user-defined vehicle Railway Bridge: Standard Vehicle – LM71, SW/0, SW/2, Unloaded Train User Defined Vehicle – LM71, SW/0, SW/2, Unloaded Train Characteristic value of centrifugal forces are automatically calculated as per EN1991-2:2003, clause 4.4.2 and 6.5.1.
Moving Load Converted to Static LoadWhen Eurocode or BS is selected for Moving Load Code When AASHTO LRFD or PennDOT is selected for Moving Load Code Detailed ResultsProduce Produces a text file detailing the calculation of HA Lane Factors for the current moving load tracer. The report will apply different factors depending on the type of HA vehicle defined and the options chosen by the user as explained below. HA Lane Factor: BD 37/01 – Lane factors (LF) computed as described in clause BD37/01 Table 14 with adjustment factor (AF) and reduction factor (K) set to 1. HA Lane Factor: BD 21/01 – Lane factor (LF) applied as given in clause BD21/01 5.24 with adjustment factor (AF) and reduction factor (K) set to 1 as default. If Additional Data option is checked on in the vehicle definition, the values of adjustment factor (AF) and reduction factor will be computed according to clause BD21/01 5.23 and Figure 5.2 to 5.7 respectively. HA Lane Factor: User-defined – Lane factors (LF) are at default as given in clause BD21/01 5.24 unless modified with adjustment factor (AF) and reduction factor (K) set to 1 as default. If Additional Data option is checked on in the vehicle definition, the values of adjustment factor (AF) and reduction factor (K) will be computed according to clause BD21/01 5.23 and Figure 5.2 to 5.7 respectively. File NameEnter the file path and name of the MCT file to be output. |
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