Initial internal load (Load)

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Property	Value
Default Short Command	LSTL
Icon

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Property	Value
Default Short Command	LSTS
Icon

Post-stress can be added to bars ( Initial internal line load) and structural regions ( Initial internal surface load) as load. Constant moment and normal force values in a given direction (e.g. only in one direction) may be defined by points of line and planar structural objects.

The initial internal load commands are useful for defining post-tensioning loads in concrete bars and slabs. Post-stress is also good for steel bars at welded connections. The definition steps are the same as introduced at Line or Surface temperature variation load commands.

Figure: Initial internal force (compression) in a stiffener truss member