Shear in Reinforced Concrete Walls
Shear in Reinforced Concrete Walls
(OP)
I am designing a below grade sump that is 37'-0" by 24'-0" in plan. The controlling wall height is 40'-0". I am analyzing the walls use plate bending theory to get some relief on moment and shear from cantilevered design. What is the concrete shear strength if I am using plate theory as the design basis? Is it 2fc^0.2 or 4fc^0.5? I am not sure if when using plate theory the wall can be considered to fail by one way or punching shear. Or am I totally off base all together?? Do to the wall span and depth shear is controlling and I am trying to minimize wall thickness.





RE: Shear in Reinforced Concrete Walls
The two way shear values (4(sqrt(f'c)) from later on in chapter 11 could be considered, but I have always noted that finite element analyses tend to produce much smaller values than those done by hand using more crude analysis methods, so I've always tended to the conservative side.
RE: Shear in Reinforced Concrete Walls
RE: Shear in Reinforced Concrete Walls
Application of concrete shear investigation in wall design may have allowable strengths as a funtion of 2f'c^.5 and thickness 'h' near wall ends at location 2 to 3 times 'h'.
Consider mid wall allowables of 4f'c^.5 at 1/3rd wall span locations.