Special Reinforced Concrete Shear Walls

Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads.

Special reinforced concrete shear walls.

Based on aci 18 10 4 1 nominal shear strength v n of structural walls is not to exceed vn acv c f c t fy where c is a coefficient defining the relative contribution of concrete strength to wall strength given as follows. Reinforced concrete shear wall analysis and design. In reinforced concrete buildings the vertical elements are usually either moment resisting frames or structural walls sometimes referred to as shear walls. The changes are a result of the unsatisfactory performance of many shear walls in the chile earthquake of 2010 and the christchurch new zealand earthquake of 2011.

Figure 1 reinforced concrete shear wall geometry and loading. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. C 0 80 for hw. The requirements of this section apply to special reinforced concrete structural walls serving as part of the earthquake force resisting system.

When the primary function of structural walls is to resist in plane loads conveyed from diaphragms down to the foundation they are generally referred to as shear walls. The design and detailing requirements for special reinforced concrete shear walls have undergone significant changes from aci 318 11 to aci 318 14. 2 1 use of special reinforced masonry shear walls masonry walls proportioned to resist a combination of shear flexural and axial forces are referred to as structural walls.