Yes, thank you Galambos! I knew I saw that somewhere before but I could not find it. I actually read it in another publication. I've been looking for it for the past two years.
For a concrete wall bending transversely, does the direction of the dowel hook of the vertical wall reinforcing bar into the footing bends. Whether it bends towards each other or away from each other, in a wall with two layers of reinforcing.
It is my understanding that:
U = the factored loads per Section 9.2.1
Gamma = factored loads(U)/unfactored loads
fs = fs,max per section 10.6.4.1, or the actual fs
phi = max of 0.9 for tension controlled
Sd = phi(fy)/gamma/fs
Sd varies with gamma because of different U values...
Interesting side note to this conversation. For roof top units, in figure 6-21 of ASCE7-05, I have always used h = height of the roof top unit above the top of roof. However, after attending a wind seminar, we were told that h = the height of the building + 1/2 the height of the roof top unit...
Is designing a tapered wall any different from a straight wall. If the tensile reinforcement is on an angle do you make any adjustments or design as usual.
RMunoz,
Also, you mentioned crack control in both directions. Did you have bending in both directions. Did you use the actual calculated fs (aci 350 10.6.4.6), or did you use fs,max(aci 350 equation 10-4, section 10.6.4.1. aci 350-06.
RMunoz,
I don't have control to add walkways. I have to live with the free top. I have #11@6 on the interior and #10@6 on the exterior, vert bars at the base.
I am planning to use 1 Expansion Joint and Construction Joints at 40ft oc. Did you continue the expansion Joint from the wall thru...