RAM Concept has two folders for prestressing called latitude and longitude.

By using RAM Concept ’s two tendon folders, you can separate tendons and tendon parameters into two groups. Separating orthogonal tendons allows for easier editing and a clearer presentation.

Each folder contains three layers:

• Tendon Parameters Layer - defines high level objects used for the generation of individual tendons. This layer facilitates a production quality presentation of high level tendon layout information.
• Generated Tendon Layer - contains the individual tendons generated from the parameter objects on the Tendon Parameters Layer. The generated individual tendons can not be edited, but can be selected and copied to the Manual Tendon Layer for further manipulation.
• Manual Tendon Layer - contains individual tendons drawn or otherwise manipulated manually by the user.

During analysis and design, all tendons on the generated tendon layers (latitude and longitude) and the manual tendon layers (latitude and longitude) are included in the calculations. Therefore it is important not to duplicate tendons on the generated and manual layers.