Design of Post embedment in concrete.
Design of Post embedment in concrete.
(OP)
I have seen the following formula for designing post embedment in concrete:
a = (2M^2 + 3LM)/3M + 6L
Do you know where I can find this formula?
Other engineers have used it to calculate embedment of guardrail's posts in concrete.
a = (2M^2 + 3LM)/3M + 6L
Do you know where I can find this formula?
Other engineers have used it to calculate embedment of guardrail's posts in concrete.






RE: Design of Post embedment in concrete.
RE: Design of Post embedment in concrete.
M = Embedment of guardrail post in cobcrete slab usualy equal to 4"
L = The height of post over finish floor (or slab)
this value should be 42" as per all local codes.
a= distance of first triangular stress below finish floor
after a is obtained other engineers have used it to calculate the force below concrete using this formula
P2= (a^2 x p)/[mx(2a-m)]
Where p is the lateral force on top of the post and as per local codes this force should be 200lb
Thanks for your help.
RE: Design of Post embedment in concrete.
Regards
Andy Machon
RE: Design of Post embedment in concrete.
a= 2 M2 + 3L.M /3M + 6L
P2= a2 x P / [M(2a-M)]
M is the embedment length of the post in the concrete slab
L is the height of the guardrail post
P is the lateral load applied on the top of the post described abve
P2 is the resisting force to P below concrete slab