Minimum Thickness Of Concrete Shear Wall

The thickness of the wall is between 150 mm to 400 mm.

Minimum thickness of concrete shear wall.

The required thickness was 8 in. 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. I have a question on the minimum reinforcing for a special reinforced concrete shear wall. 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.

Concrete is naturally fire resistant and aci does not provide any details for minimum thickness for fire resistance. Reinforced concrete shear wall analysis and design. For more on designing bearing walls refer to chapter 11 of aci 318 19. 150 mm for concrete shear walls.

Concrete and fire resistance. In the last post we derived the actions on the shear wall of a building. If i turn to section 21 9 special structural walls and coupling beams. Although a minimum thickness of 150 mm is possible for a wall it is recommended that 180 250 mm aid detailing and construction.

200 mm for basement and foundation walls. Minimum reinforcement is 0 25 of the gross area of the section. Factored shear stress is increase 0 25. The minimum ratios of horizontal and vertical reinforcement for the walls were 0 002 and 0 0012 respectively.

The 1965 national building code of canada nbcc 1965 subsection 4 5 8 requires a minimum thickness of 6 in. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. Minimum thickness of compression zone of special shear wall that is not tension controlled. Design considerations of the shear wall.

The diameter of bars is between 1 10 of the wall thickness. Thus it appears that in the example you provided the minimum wall thickness is 6 inches. But as per constructability purposes it should be at least 12 inches thick and if you have coupling. Two curtain reinforcement is provided if.

I see table r21 9 1 governing design provisions for vertical wall segments. Section 11 3 1 1 states that the minimum thickness shall be based on the shorter of either the unsupported wall height or length.