Base Plate with Stiffeners

Figure 1 shows two columns with base plate stiffeners of a single-floor building.

Single-floor building.
Short steel columns with base plates stiffeners

Figure 2 shows a column with base plate stiffeners of a commercial center.

Commercial center.
Global view Stiffened base
Tall steel column with base plate stiffeners

Figure 3 shows a street light pole with base plate stiffeners.

Street light pole.
Global view Stiffened base
Street light pole with base plate stiffeners

Figure 4 shows a bollard guard with base plate stiffeners.

Bollard guard.
Bollard guard with base plate stiffeners
  • Are all the above shown base plates with stiffeners required for structural reasons?