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# 16.4.4 *Nominal Horizontal Shear Strength*

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If

**,***V*≤ ϕ(500_{u}*b*)_{v}d**shall be calculated in accordance with Table 16.4.4.2, where***V*_{nh}**is in accordance with 16.4.6,***A*_{v,min}**is the width of the contact surface, and***b*_{v}**is in accordance with 16.4.4.3.***d***Table 16.4.4.2—Nominal horizontal shear strength**

Shear transfer reinforcement | Contact surface preparation^{[1]} | V, lb_{nh} | ||
---|---|---|---|---|

A ≥ _{v}A_{v,min} | Concrete placed against hardened concrete intentionally roughened to a full amplitude of approximately 1/4 in. | Lesser of: | (a) | |

500b_{v}d | (b) | |||

Concrete placed against hardened concrete not intentionally roughened | 80b_{v}d | (c) | ||

Other cases | Concrete placed against hardened concrete intentionally roughened | 80b_{v}d | (d) |

^{[1]}Concrete contact surface shall be clean and free of laitance.

In Table 16.4.4.2,

**shall be the distance from extreme compression fiber for the entire composite section to the centroid of prestressed and nonprestressed longitudinal tension reinforcement, if any, but need not be taken less than***d***0.80**for prestressed concrete members.*h*Transverse reinforcement in the previously cast concrete that extends into the cast-in-place concrete and is anchored on both sides of the interface shall be permitted to be included as ties for calculation of

**.***V*_{nh}### Related Code Sections

16.4.4 Connections Between Members,

*Nominal Horizontal Shear Strength*
is the width of the contact surface, and d is in accordance with 16.4.4.3. Table 16.4.4.2—

*Nominal**horizontal**shear**strength**Shear*...
Building Code Requirements for Structural Concrete of New York State > 16 Connections Between Members > 16.4 Horizontal Shear Transfer in Composite Concrete Flexural Members > 16.4.4

*Nominal Horizontal Shear Strength*
16.4.3.1 Connections Between Members,

flexural member, unless 16.4.5 is satisfied: ϕ V nh ≥ V u (16.4.3.1) where

*nominal**horizontal**shear**strength*V nh is calculated ...
Building Code Requirements for Structural Concrete of New York State > 16 Connections Between Members > 16.4 Horizontal Shear Transfer in Composite Concrete Flexural Members > 16.4.3

*Design Strength*> 16.4.3.1
16.4.5.1 Connections Between Members,

(16.4.5.1)

*Nominal**horizontal**shear**strength*V nh shall be calculated in accordance with 16.4.4.1 or 16.4.4.2, where area of contact ...
Building Code Requirements for Structural Concrete of New York State > 16 Connections Between Members > 16.4 Horizontal Shear Transfer in Composite Concrete Flexural Members > 16.4.5

*Alternative Method for Calculating Design Horizontal Shear Strength*> 16.4.5.1
16.4.5 Connections Between Members,

*Alternative Method for Calculating Design Horizontal Shear Strength*
(16.4.5.1)

*Nominal**horizontal**shear**strength*V nh shall be calculated in accordance with 16.4.4.1 or 16.4.4.2, where area of contact ...
Building Code Requirements for Structural Concrete of New York State > 16 Connections Between Members > 16.4 Horizontal Shear Transfer in Composite Concrete Flexural Members > 16.4.5

*Alternative Method for Calculating Design Horizontal Shear Strength*
16.4 Connections Between Members, Horizontal Shear Transfer in Composite Concrete Flexural Members

(16.4.3.1) where

*nominal**horizontal**shear**strength*V nh is calculated in accordance with 16.4.4 ...
Building Code Requirements for Structural Concrete of New York State > 16 Connections Between Members > 16.4 Horizontal Shear Transfer in Composite Concrete Flexural Members