Footing Point Load [SIG]
- Dogukan Kilic
- Melis Ceylan
Point loads on footings can be applied based on the specifications defined using the parameters below.
Footing Point Load
Footing: Specify the footing to which the load will be applied.
Stage: Choose the stage at which to apply the load.
Specify Position As[Point/Column Center]: If the Point input method is selected, the engineer must specify a position relative to the footing center. If Column Center is selected, the engineer must specify a column. The load will then be positioned at the center of the specified column.
X Position (Center is (0,0)): For point loads with the "Specify Position" parameter set to the option Point, the X coordinate (always along the longitudinal direction, regardless of the footing's rotation) can be specified using this parameter.
Y Position (Center is (0,0)): For point loads with the "Specify Position" parameter set to the option Point, the Y coordinate (always positive to the right when looking upstation along the PGL direction, regardless of the footing's rotation) can be specified using this parameter.
Column: This input is enabled if Specify Position As is set to Column Center. Specify the column. The load will be positioned at the column's center, where it connects to the footing.
Fx: Force in the longitudinal direction along the PGL.
Fy: Force in the direction perpendicular to the PGL.
Fz (Gravity): Force in the vertical direction. A positive value indicates a load in the global -Z or gravity direction. For usual loads (wearing surface loads - stay-in-place formwork loads), the user should input positive values.
Mx: Moment in the longitudinal direction along the PGL.
My: Moment in the direction perpendicular to the PGL.
Mz: Moment in the vertical direction.
Although Fz is applied in the direction of gravity (positive values for Fz will correspond to the downward direction, as with gravity), Mz will have a positive direction relative to the +Z axis or, in other words, in the upward direction.
The Directions of Forces
For footings with a rotation parameter defined as a value other than zero, the directions of the applied loads are adjusted accordingly. Refer to the figures provided below for further clarification on the directions of positive forces and moments.
