Question
I want to know the position of the vehicle load that generates the maximum positive moment during moving load analysis.
Answer
'Moving Load Tracer' function can be used to identify the position of the vehicle load that generates the maximum/minimum results for each element.
[Results] Tab > [Moving Load] Group > [Moving Tracer]
'Moving Load Tracer' is a function that tracks the loading condition and vehicle position that produces maximum/minimum results at each element or node during moving load analysis, and visually represents the resulting shape of the load on the structure.
Tracking the Vehicle's loading Position (Plate) to generate the maximum positive bending moment due to the DB vehicle load
1. Check the maximum value of Mxx in the Plate Forces/Moments
-By using 'Legend Option', you can identify the element where the maximum value of Mxx occurs.
2. Select Plate Forces/Moments in the Moving Load Tracer
- For beam elements, you can select Beam Forces/Moments to check the maximum values.
3. Enter the 'Moving Load Case' and the number of the 'Key Element' you want to check.
- In this example, 'MVmax: DB' is selected because we want to check the maximum positive moment caused by the DB vehicle load.
- Enter the element number 347, which was previously identified as the Key Element for the analysis.
4. To select Components, choose Mxx, select 'Applied Loads' for 'Type of Display', and click 'Apply'.
- If you select the 'Applied Loads' option, you can visually check the location of the load and the load condition that produces the analysis result.
Additionally, the 'Write Min/Max Load to File' function allows you to convert the selected Moving Load Cases into static loads and export them in MCT format. You can import the generated static load into CIVIL using the following steps.
1. Run the output MCT file and copy all the stored data.
2. Execute the MCT Command Shell in CIVIL and paste the copied data, then run it.