// CODE SNIPPET

# 11.6 Reinforcement Limits

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If in-plane

**, minimum***V*≤ 0.5ϕ_{u}*V*_{c}**ρ**and minimum_{ℓ}**ρ**shall be in accordance with Table 11.6.1. These limits need not be satisfied if adequate strength and stability can be demonstrated by structural analysis._{t}**Table 11.6.1—Minimum reinforcement for walls with in-plane V_{u}** ≤

**0.5**

_{ϕ}*V*_{c}Wall type | Type of nonprestressed reinforcement | Bar/wire size | f, psi_{y} |
Minimum longitudinal^{[1]}, ρ_{ℓ} |
Minimum transverse, ρ_{t} |
---|---|---|---|---|---|

Cast-in-place | Deformed bars | ≤ No. 5 | ≥ 60,000 | 0.0012 | 0.0020 |

< 60,000 | 0.0015 | 0.0025 | |||

> No. 5 |
Any | 0.0015 | 0.0025 | ||

Welded-wire reinforcement | ≤ W31 or D31 | Any | 0.0012 | 0.0020 | |

Precast^{[2]} |
Deformed bars or welded-wire reinforcement | Any | Any | 0.0010 | 0.0010 |

^{[1]}Prestressed walls with an average effective compressive stress of at least 225 psi need not meet the requirement for minimum longitudinal reinforcement ρ_{ℓ}.

^{[2]}In one-way precast, prestressed walls not wider than 12 ft and not mechanically connected to cause restraint in the transverse tion, the minimum reinforcement requirement in the direction normal to the flexural reinforcement need not be satisfied.

If in-plane

**, (a) and (b) shall be satisfied:***V*≥ 0.5ϕ_{u}*V*_{c}(a) **ρ _{ℓ}** shall be at least the greater of the value calculated by Eq. (11.6.2) and 0.0025, but need not exceed

**ρ**required by 11.5.4.8.

_{t}ρ _{ℓ} ≥ 0.0025 + 0.5(2.5 — h_{w}/ℓ)(ρ_{w}_{t} — 0.0025) |
(11.6.2) |

(b) **ρ _{t}** shall be at least 0.0025

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