Using Load Type "End Prestress"
Tips & Tricks
Until now, the load type prestress has always been an initial prestress in the Dlubal Software programs. The defined load magnitude was applied and, depending on the stiffness of the surrounding system, the prestress remained more or less as axial force in the cable.
If you, for example, use a cable between two supports, the axial force corresponds to the prestress force. If you connect two brackets with a prestressed cable, the axial force in it depends on the stiffness of the columns. For a given end prestress force, the initial prestress used to be increased by manual iteration.
Now, if you select the load type “End prestress” in the load definition of RFEM 5, the program increases the load until the axial force equals the prestress force.
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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements