Minimum Thickness Of Concrete Shear Wall

But as per constructability purposes it should be at least 12 inches thick and if you have coupling.

Minimum thickness of concrete shear wall.

Concrete is naturally fire resistant and aci does not provide any details for minimum thickness for fire resistance. Minimum reinforcement is 0 25 of the gross area of the section. In the last post we derived the actions on the shear wall of a building. Minimum thickness of compression zone of special shear wall that is not tension controlled.

I see table r21 9 1 governing design provisions for vertical wall segments. Two curtain reinforcement is provided if. I have a question on the minimum reinforcing for a special reinforced concrete shear wall. Although a minimum thickness of 150 mm is possible for a wall it is recommended that 180 250 mm aid detailing and construction.

Section 11 3 1 1 states that the minimum thickness shall be based on the shorter of either the unsupported wall height or length. Reinforced concrete shear wall analysis and design. Second a minimum wall thickness of 12 inches is imposed throughout the specially confined boundary zone where the wall section is not tension controlled see 18 10 6 4 c figure 2. 150 mm for concrete shear walls.

The required thickness was 8 in. Design considerations of the shear wall. The diameter of bars is between 1 10 of the wall thickness. A structural reinforced concrete shear wall in a 5 story building provides lateral and gravity load resistance for the applied load as shown in the figure below.

Factored shear stress is increase 0 25. Concrete and fire resistance. If i turn to section 21 9 special structural walls and coupling beams. This is a small building 40 0 x40 0 so the loads are not very high at all.

Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. The 1965 national building code of canada nbcc 1965 subsection 4 5 8 requires a minimum thickness of 6 in. The thickness of the wall is between 150 mm to 400 mm. For more on designing bearing walls refer to chapter 11 of aci 318 19.

A wall s thickness is determined based on the forces it is being subjected to required fire resistance durability and buildability. The thickness of the wall exceeds 200 mm.