File talk:HRWalkway.svg

The force shouldn't be denoted by "P" in the drawing. P usually stands for pressure, which is force divided by area. Here it's clearly the force being doubled, not necessarily the pressure. So "F" should be used instead.

In structural engineering a point load is notated as P

202.20.0.166 (talk) 22:56, 23 March 2011 (UTC)