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# 2106.5.2 Shear Wall Shear Strength

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For a shear wall whose nominal shear strength exceeds the shear corresponding to development of its nominal flexural strength, two shear regions exist.

For all cross sections within a region defined by the base of the shear wall and a plane at a distance

*L*_{w}above the base of the shear wall, the nominal shear strength shall be determined by Equation 21-1.*V*

_{n}= A_{n}ρ_{n}f_{y}**(Equation 21-1)**

The required shear strength for this region shall be calculated at a distance

*L*_{w}/2 above the base of the shear wall, but not to exceed one-half story height. For the other region, the nominal shear strength of the shear wall shall be determined from Section 2108.Upcodes Diagrams

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