Introduction to prestressing

Module Prestressing makes it possible to define geometry, material and other properties of prestressed tendon. The tendon can be inserted into 1D members. It is possible to define pre-tensioned internal tendons.

The tendons are defined through strand patterns that are supposed to be symmetrical in a 1D member, thus only one (symmetrical) half of the strand along the 1D member must be defined. The input is made in three steps:

1. Bore hole pattern is defined, i.e. the location of holes in the "face-plate" is defined.

2. Sectional strand pattern is specified, i.e. which holes of the "face-plate" are "filled" with a strand/wire/bar.

3. Beam strand pattern is input, which means that the shape of the strands/wires/bars along the 1D member is defined (this step is subject to certain limitations that will be explained later).

Note: It is not possible to import prestressing data from EPW system.