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The dimensions of a PSC Box are assigned. The boundary lines of the PSC Box are drawn according to the assigned dimensions.

PSC Box template support two types. Solid type and Hollow type are supported.

Solid Type

Hollow Type


The positions and dimensions of bearing plates are assigned.  

The information can be altered in the ASSIGN-Bearing Plates after clicking the strut-tie model node framed by the bearing plate.


The shear force and torsion are assigned. After assigning the load names, they can be altered, added, or deleted in the DEFINE-Static Load.

The positive values for shear force loads must be assigned. The positive torsion load is set to clockwise.

STM setting

Two reference distances A and B are assigned for the automatic construction of a strut-tie model for PSC Box (only Hollow type).


The areas of reinforcing bars assigned to the PSC BOx below are recognized as the areas of steel ties of the strut-tie model for PSC Box.

The information on the reinforcing bars can be altered, added, or deleted in the DEFINE-Tie Types-Reinforcement Ties.

The information can be assigned to the elements of the strut-tie model in the ASSIGN-Tie Types.