An engineered testing firm conducted ultimate shear strength test on pallet rack uprights under four different damage conditions according to ITS SOP 9 Rev.3 Tension/Compression test procedure.
The purpose of this testing was to evaluate the front to back shear strength of the uprighs in various conditions in the even that the bottom of the front column was damaged or displaced by a forklift, and to observe the effectiveness of adding a bracing panel to repair damaged uprights.
Pre bent sample - 1,846 lbf
Diagonal brace cut out - 430 lbf
Diagonal brace cut out with a Fortified Brace Panel - 9,086 lbf
Undamaged - 4,319 lbf
Test Sample 1
A pre bent sample was tested and showed a structural failure at 1,846 lbf.
welds broke from frame
Test Sample 2
Diagonal Brace Cut Out
Commonly found are bent or missing braces. In this a brace is cut and failed at 430 lbf.
top and bottom brace welds broke
Test Sample 3
Diagonal Brace Cut Out with Brace Panel Installed
Took a frame with missing brace like Sample 2 and added the Brace Panel. The sample was shown to be stronger than an undamaged frame with 9,086 lbf.
Test Sample 4
This was an undamaged panel, failure load 4,319 lbf.