Minimum Thickness Of Concrete Shear Wall

200 mm for basement and foundation walls.

Minimum thickness of concrete shear wall.

The required thickness was 8 in. A wall s thickness is determined based on the forces it is being subjected to required fire resistance durability and buildability. Design considerations of the shear wall. If i turn to section 21 9 special structural walls and coupling beams.

I see table r21 9 1 governing design provisions for vertical wall segments. 150 mm for concrete shear walls. Minimum thickness of compression zone of special shear wall that is not tension controlled. For more on designing bearing walls refer to chapter 11 of aci 318 19.

The thickness of the wall exceeds 200 mm. Two curtain reinforcement is provided if. Reinforced concrete shear wall analysis and design. 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. Thus it appears that in the example you provided the minimum wall thickness is 6 inches. Section 11 3 1 1 states that the minimum thickness shall be based on the shorter of either the unsupported wall height or length. The diameter of bars is between 1 10 of the wall thickness.

Concrete is naturally fire resistant and aci does not provide any details for minimum thickness for fire resistance. This is a small building 40 0 x40 0 so the loads are not very high at all. Minimum reinforcement is 0 25 of the gross area of the section. 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. In the last post we derived the actions on the shear wall of a building. Concrete and fire resistance. The 1965 national building code of canada nbcc 1965 subsection 4 5 8 requires a minimum thickness of 6 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. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads.