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# 8.4.2.3 *Factored Slab Moment Resisted by the Column*

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The fraction of factored slab moment resisted by the column,

**γ**, shall be assumed to be transferred by flexure, where_{f}M_{sc}**γ**shall be calculated by:_{f}(8.4.2.3.2) |

The effective slab width

**for resisting***b*_{slab}**γ**shall be the width of column or capital plus_{f}M_{sc}**1.5**of slab or drop panel on either side of column or capital.*h*For nonprestressed slabs, where the limitations on

**and***v*_{ug}**ε**in Table 8.4.2.3.4 are satisfied,_{t}**γ**shall be permitted to be increased to the maximum modified values provided in Table 8.4.2.3.4, where_{f}**is calculated in accordance with 22.6.5, and***v*_{c}**is the factored shear stress on the slab critical section for two-way action due to gravity loads without moment transfer.***v*_{ug}**Table 8.4.2.3.4—Maximum modified values of γ _{f} for nonprestressed two-way slabs**

Column location | Span direction | v_{ug} | ε_{t} (within b)_{slab} | Maximum modified γ_{f} |
---|---|---|---|---|

Corner column | Either direction | ≤0.5ϕv_{c} | ≥0.004 | 1.0 |

Edge column | Perpendicular to the edge | ≤0.75ϕv_{c} | ≥0.004 | 1.0 |

Parallel to the edge | ≤0.4ϕv_{c} | ≥0.010 | ||

Interior column | Either direction | ≤0.4ϕv_{c} | ≥0.010 |

Concentration of reinforcement over the column by closer spacing or additional reinforcement shall be used to resist moment on the effective slab width defined in 8.4.2.3.2 and 8.4.2.3.3.

The fraction of

**not calculated to be resisted by flexure shall be assumed to be resisted by eccentricity of shear in accordance with 8.4.4.2.***M*_{sc}### Related Code Sections

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8.4.4.2.1 Two-Way Slabs,

For two-way shear with

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*Factored Two-Way Shear*> 8.4.4.2*Factored Two-Way Shear Stress Due to Shear and Factored Slab Moment Resisted by the Column*> 8.4.4.2.1
8.4.4.2.2 Two-Way Slabs,

The fraction of M sc transferred by eccentricity of shear, γ v M sc , shall be applied at the centroid of the critical section in accordance ...

Building Code Requirements for Structural Concrete of New York State > 8 Two-Way Slabs > 8.4 Required Strength > 8.4.4

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