By selecting the Vehicular Loads option from the Libraries menu, or its respective icon, the Library: Truck Main screen will display. This option allows you to access and manage the vehicles in your library (lrfdtrk.rp1 or stdtrk.rp1). More specifically, you can input the specifics of the load placed on the pier structure by different types of trucks and vehicles. A list of previously defined trucks will display in the screen. This list contains the classes of trucks available in Substructure.

In the case of AASHTO LRFD, the values of two design trucks + lane have been reduced to 90% of their original values, which are hard-coded in the LRFD vehicular library.

To add a new truck to the list, click Add. The program will insert a truck called "Vehicular Load" to the list. This is an undefined load. You can modify this load with your own specifications, by clicking Modify/View to activate the Libraries: User-Defined Live Load screen. Enter a name in the Name textbox and input the values in the text boxes as they apply. If this is a permit vehicle, check the appropriate box for it. Click OK to accept the changes and return to the Library: Truck Main screen.