Function
- Enter the traffic (line) lanes for moving load analysis.
Call
From the Main Menu select [Load] tab > [Type : Moving Load] > [Moving Load Analysis Data] group > [Traffic Line Lanes]
Input
- To enter new or additional traffic line lanes
Click the Add Button.
- To modify previously entered traffic line lanes
Select the traffic line lane to be modified in the dialog box and click the Modify Button.
When the Modify Button is clicked, the selected lane elements will be displayed on the screen.
- To delete previously entered traffic line lanes
Select the traffic line lanes to be deleted in the dialog box and click the Delete Button.
Data entry method when the Add Button is clicked
Lane Name
Enter the name of a traffic line lane.
Traffic Lane Properties
Eccentricity
Enter the eccentricity of a traffic line lane relative to a traffic line element.
(-) Negative represents the left side of the traffic line element and vice versa.
Impact Factor
Enter the impact factors for the entered traffic line lane elements.
Vehicular Load Distribution
Assign the means of distributing the vehicular load.
Lane Element : Apply loads to the traffic lane elements reflecting the eccentricity.
Using the Elements Type of the Beam End Offset function the panel zone effect of the traffic lane elements can be considered by specifying the offset distance.
Cross Beam : Apply the traffic load to the cross beams.
Cross Beam Group : Specify the name of the Structure Group to which Cross Beams are assigned.
Skew : Specify the Skew Angles at the Start and End of the bridge.
Moving Direction
Assign the direction of traffic loads.
Forward : Consider the direction from the Start to End only.
Backward : Consider the direction from the End to Start only.
Both : Consider the both direction.
Selection by
2 Points : Beam elements in a line defined by 2 points are assigned as traffic line lane elements. The first point becomes the Start point.
Picking : Assign the traffic line lane elements with the mouse. The Location of the first-assigned elements the Start point.
Elements Number : Enter the element numbers pertaining to the traffic line lane elements. The location of the first-assigned elements becomes the start point.
Operations
The data entry is reflected when Selection by Number is selected.
The Add Button : Add to the selected traffic lane elements with the specified eccentricity and impact factor.
The Insert Button : Insert the selected traffic lane elements in between the previously entered traffic lane elements.
The Delete Button : Select the traffic lane elements at the bottom of the dialog box and delete.
Note
The traffic line lane must be consecutively entered in the direction of the moving path of the vehicles. When assigning elements with 2 points or Picking the Add Button or the Insert button need not be clicked.