I am considering a part of a steel column. A horizontal force of 5 kN is acting on the top part of the column. The distance from top to bottom is 500 mm. The distance between the two bolts in the bottom is 100 mm. I wish to find the pull force on the bolts (please see attached picture).
The moment in the bottom is M = 5 kN × 500 mm = 2500 kNmm.
As the force acts on the column there appears a pull-force on the bolts (we call it T).
If I take moment in one of the bolts then I have:
M = T × 100 mm, 2500 kN = T × 100 mm, T = 2500 kNmm / 100 mm, T=25 kN.
I have the following questions:
- Is the calculated moment of 2500 kNmm correct and where does is "act" specifically? In the bottom of the column, in the bolts?
- Is it correct to say that the above moment acts in the bottom of the column and therefore there is a pull-force on the bolts of 25 kN?
- Is there a pull-force on the left bolt and pressure-force on the right bolt?
- Since I am interested in the pull-force I can take the moment around the right bolt. Right?
(All measure are in mm)
Appreciate the help.