Panel Friction
Panel Friction
(OP)
Hi
I have done very little precast design and I am designing some precast shear walls with large axial loads. The panels sit on a continuous grout bed and have steels dowels at each end.
What would be reasonable value to use for a coefficient of friction for ultimate loading? Can i also use the shear capacity of the dowels at the same time?
A value of 0.3 has been used for inital calculations but i would like to get some feedback on industry standards.
Many Thanks!
ljk
I have done very little precast design and I am designing some precast shear walls with large axial loads. The panels sit on a continuous grout bed and have steels dowels at each end.
What would be reasonable value to use for a coefficient of friction for ultimate loading? Can i also use the shear capacity of the dowels at the same time?
A value of 0.3 has been used for inital calculations but i would like to get some feedback on industry standards.
Many Thanks!
ljk





RE: Panel Friction
You should use the dowel shear strength - possibly using Shear Friction provisions of ACI 318 (chapter 11) - or its Appendix D.
RE: Panel Friction
It seems pretty conservative to ignore friction when you have large axial loads and contact area. If a conservative value of the dead load is used in the calculation why should this force be ignored? Is there empirical evidence to suggest this shouldn't be used or are you reffering to specific code restricitons (i am in Australia).
Thanks again.
RE: Panel Friction
RE: Panel Friction