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# 22.5.10 *One-Way Shear Reinforcement*

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At each section where

**, transverse reinforcement shall be provided such that Eq. (22.5.10.1) is satisfied.***V*> ϕ_{u}*V*_{c}(22.5.10.1) |

For one-way members reinforced with transverse reinforcement,

**shall be calculated in accordance with 22.5.10.5.***V*_{s}For one-way members reinforced with bent-up longitudinal bars,

**shall be calculated in accordance with 22.5.10.6.***V*_{s}If more than one type of shear reinforcement is provided to reinforce the same portion of a member,

**shall be the sum of the***V*_{s}**values for the various types of shear reinforcement.***V*_{s}In nonprestressed and prestressed members, shear reinforcement satisfying (a), (b), or (c) shall be permitted:

(a) Stirrups, ties, or hoops perpendicular to longitudinal axis of member

(b) Welded wire reinforcement with wires located perpendicular to longitudinal axis of member

Inclined stirrups making an angle of at least 45 degrees with the longitudinal axis of the member and crossing the plane of the potential shear crack shall be permitted to be used as shear reinforcement in nonprestressed members.

*V*for shear reinforcement in 22.5.10.5.1 shall be calculated by:

_{s}(22.5.10.5.3) |

where ** s** is the spiral pitch or the longitudinal spacing of the shear reinforcement, and

**is given in 22.5.10.5.5 or 22.5.10.5.6.**

*A*_{v}*V*for shear reinforcement in 22.5.10.5.2 shall be calculated by:

_{s}(22.5.10.5.4) |

where **α** is the angle between the inclined stirrups and the longitudinal axis of the member, ** s** is measured parallel to the longitudinal reinforcement, and

**is given in 22.5.10.5.5.**

*A*_{v}For each circular tie or spiral,

**shall be two times the area of the bar or wire within spacing***A*_{v}**.***s*The center three-fourths of the inclined portion of bent-up longitudinal bars shall be permitted to be used as shear reinforcement in nonprestressed members if the angle α between the bent-up bars and the longitudinal axis of the member is at least 30 degrees.

If shear reinforcement consists of a single bar or a single group of parallel bars having an area

**, all bent the same distance from the support,***A*_{v}**shall be the lesser of (a) and (b):***V*_{s}(a) V = _{s}Asinα_{v}f_{y} | (22.5.10.6.2a) |

(b) | (22.5.10.6.2b) |

where **α** is the angle between bent-up reinforcement and longitudinal axis of the member.

If shear reinforcement consists of a series of parallel bent-up bars or groups of parallel bent-up bars at different distances from the support,

**shall be calculated by Eq. (22.5.10.5.4).***V*_{s}### Related Code Sections

22.5.10 Sectional Strength,

*One-Way Shear Reinforcement*
) For

*one*-*way*members*reinforced*...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.5 One-Way Shear Strength > 22.5.10

*One-Way Shear Reinforcement*
22.5.10.5.6 Sectional Strength,

For each circular tie or spiral, A v shall be two times the area of the bar or wire within spacing s ...

Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.5 One-Way Shear Strength > 22.5.10

*One-Way Shear Reinforcement*> 22.5.10.5*One-Way Shear Strength Provided by Transverse Reinforcement*> 22.5.10.5.6
22.5.10.5 Sectional Strength,

*One-Way Shear Strength Provided by Transverse Reinforcement*
In nonprestressed and prestressed members,

*shear**reinforcement*satisfying (a), (b), or (c) shall be permitted: (a) Stirrups, ties, or hoops ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.5 One-Way Shear Strength > 22.5.10

*One-Way Shear Reinforcement*> 22.5.10.5*One-Way Shear Strength Provided by Transverse Reinforcement*
22.5.10.4 Sectional Strength,

If more than

*one*type of*shear**reinforcement*is provided to*reinforce*the same portion of a member, V s shall be the sum of the V s values ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.5 One-Way Shear Strength > 22.5.10

*One-Way Shear Reinforcement*> 22.5.10.4
22.5.10.2 Sectional Strength,

For

*one*-*way*members*reinforced*with transverse*reinforcement*, V s shall be calculated in accordance with 22.5.10.5 ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.5 One-Way Shear Strength > 22.5.10

*One-Way Shear Reinforcement*> 22.5.10.2