TheoreticalHope
Structural
- Nov 16, 2009
- 12
I'm designing a simple shoring system, and using PERI MULTIPROP adjustable post shores.
The posts are adjustable with an inner and outer tube assembly that can be locked together.
The technical data from the manufacturer provides a load bearing capacity, but differentiates between whether the inner tube is at the top or bottom.
I am curious as to whether any of you know why putting the inner tube up or down would make such a big difference in load capacity.
- I would imagine the locking mechanism wouldn't be so fragile to be affected by gravity.
- I also can't see how the stiffness of the top plate vs bottom plate would significantly affect the capacity, since the supported member would have a much larger affect on performance.
If anyone has any insight, I hope you can share!
I've wondered about this for a long time.
Thanks!
The posts are adjustable with an inner and outer tube assembly that can be locked together.
The technical data from the manufacturer provides a load bearing capacity, but differentiates between whether the inner tube is at the top or bottom.
I am curious as to whether any of you know why putting the inner tube up or down would make such a big difference in load capacity.
- I would imagine the locking mechanism wouldn't be so fragile to be affected by gravity.
- I also can't see how the stiffness of the top plate vs bottom plate would significantly affect the capacity, since the supported member would have a much larger affect on performance.
If anyone has any insight, I hope you can share!
I've wondered about this for a long time.
Thanks!
