https://forum.rubicontoolbox.com/pages/topic77-defining-loads.aspx Rubicon Online Help - LET Tools: Standard Axle Design, Axle Spectrum and Stress-Strain Calculator - Defining Loads - Messages en-us http://blogs.law.harvard.edu/tech/rss Jitbit AspNetForum Mon, 12 May 2025 19:30:21 GMT Mon, 12 May 2025 19:30:21 GMT https://forum.rubicontoolbox.com/pages/topic77-defining-loads.aspx

The coordinate system used to define the loads is shown below for a dual wheel load. Only half an axle is defined, which is standard practice for regular heavy vehicles. The load is assumed to move in the direction of the x-axis, and the y-axis is along the axle. Typically one load is defined at the origin with coordinates (0, 0, 0).



Getting Started

The Loads database is accessed through the Settings icon on the Rubicon Toolbox Online Tools.

The database contains predefined loads. These cannot be edited and changed, but they can be copied. Once copied the associated values can be edited, updated and deleted.



Adding User Defined Loads

Users may define new loads. Be careful of the coordinate system. The Load Setup Name is what is seen in the LET Tools, be sure to include sufficient detail to be able to select the correct load from the LET Tools.





Note that only the x and y coordinates are used in the load definition. It is assumed the load is on the pavement surface.

The loads are listed in alphabetical order, use the scroll bar to search for the load that has just been created. The newly defined load will be included in the list.



Edit or Delete User Defined Loads

User defined loads can be edited or deleted. Note that the predefined loads in the database may not be edited or deleted.



Selecting User Defined Loads

To select which loads you would like to be available to view from the LET Tools, go back to the Online Tools window and to Settings, Select Load Setups. This step is essential to be able to use your newly defined loads.




When you have added a new load in Manage Load Setups, remember to check the checkbox in Select Load Setups, and Save Changes to ensure the material is available in the LET Standard Axle and Axle Spectrum Tools.




edited by on 5/12/2025
edited by on 5/15/2025]]> Mon, 12 May 2025 19:30:21 GMT