Point loads on pier caps can be applied at the specified stage once the related definitions are made by specifying the parameters below.
Pier Cap Load
Pier Cap: Choose the pier cap to impose the nodal load.
Stage: Select a stage to apply the load.
Normalized Distance From Right (0-1): The relative distance where the load is applied must be specified with a value between 0 and 1, where 0 corresponds to the initial node of the selected pier cap and 1 corresponds to the final node. The initial node is defined in the direction of alignment, looking upstation (to the right in the standard view).
Fx: Force in X direction. The longitudinal direction along the alignment will correspond to the X axis direction.
Fy: Force in Y direction. The transverse direction along the alignment will correspond to the Y aixs direction.
Fz (Gravity): Force in Z direction. A positive value will apply the load in the gravity direction, while a negative value will apply the load in the opposite direction.
Mx : Moment in the longitudinal direction along the PGL.
My : Moment in the direction perpendicular to the PGL.
Mz : Moment in the vertical direction.
The Directions of Forces
For point loads defined for pier caps that have a skew angle defined as zero, the loads will be applied based on the alignment's coordinate system. Otherwise, for cases where pier caps have a skew angle different from zero, the forces will be applied according to the skew angle. See the figures provided below for further clarification on the directions of positive forces and moments.
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