// CODE SNIPPET

# 22.6.4 *Critical Sections for Two-Way Members*

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For two-way shear, critical sections shall be located so that the perimeter

**is a minimum but need not be closer than***b*_{o}**to (a) and (b):***d*/2(a) Edges or corners of columns, concentrated loads, or reaction areas

(b) Changes in slab or footing thickness, such as edges of capitals, drop panels, or shear caps

For two-way members reinforced with headed shear reinforcement or single- or multi-leg stirrups, a critical section with perimeter

**located***b*_{o}**beyond the outermost peripheral line of shear reinforcement shall also be considered. The shape of this critical section shall be a polygon selected to minimize***d*/2**.***b*_{o}If an opening is located within a column strip or closer than

**10**from a concentrated load or reaction area, a portion of*h***enclosed by straight lines projecting from the centroid of the column, concentrated load or reaction area and tangent to the boundaries of the opening shall be considered ineffective.***b*_{o}### Related Code Sections

22.6.4 Sectional Strength,

*Critical Sections for Two-Way Members*
For

*two*-*way*shear,*critical**sections*shall be located so that the perimeter b o is a minimum but need not be closer than d /*2*to (a) and (b ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.6 Two-Way Shear Strength > 22.6.4

*Critical Sections for Two-Way Members*
22.6.6 Sectional Strength,

*Maximum Shear for Two-Way Members With Shear Reinforcement*
For

*two*-*way**members*with shear reinforcement, the value of v c calculated at*critical**sections*shall not exceed the limits in Table 22.6.6.1 ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.6 Two-Way Shear Strength > 22.6.6

*Maximum Shear for Two-Way Members With Shear Reinforcement*
22.6.6.1 Sectional Strength,

For

*two*-*way**members*with shear reinforcement, the value of v c calculated at*critical**sections*shall not exceed the limits in Table 22.6.6.1 ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.6 Two-Way Shear Strength > 22.6.6

*Maximum Shear for Two-Way Members With Shear Reinforcement*> 22.6.6.1
22.6.6.2 Sectional Strength,

For

*two*-*way**members*with shear reinforcement, effective depth shall be selected such that v u calculated at*critical**sections*does not exceed ...
Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.6 Two-Way Shear Strength > 22.6.6

*Maximum Shear for Two-Way Members With Shear Reinforcement*> 22.6.6.2
22.6 Sectional Strength, Two-Way Shear Strength

*two*-

*way*

*members*with shear reinforcement, the value of v c calculated at

*critical*

*sections*...

Building Code Requirements for Structural Concrete of New York State > 22 Sectional Strength > 22.6 Two-Way Shear Strength