Girder Strand [CUG]

There are two methods for calculating tendon losses in OpenBrIM. The first method, the approximate method, involves defining the Percent Loss (%) of the tendon objects on the FEA tab, as outlined above.

The second method, the detailed method, is as follows:

1. Defining Time-Dependent Material Properties for tendon materials:
   Refer to this link for parameters such as:

   • Steel Relaxation Effect

   • PT Losses from Structure

2. Defining CEB-FIB 1990 Parameters of the materials:
   Refer to this link for defining parameters such as:

   • Steel Relaxation Class

3. Making Construction Stage Definitions:
   Refer to this link for making stage definitions by:

   • Construction Day

   • Code

   • Steel Relaxation Effect

   • PT Losses from Structure
     
     

4. Defining the Associated Result Extraction Cases: refer to screenshot below for example case definitions.

Open

Example: Result Extraction (From Stages) Definitions