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// CODE SNIPPET

1905A.1.14 ACI 318, Table 21.2.2

Los Angeles Building Code > 19A Concrete > 1905A Modifications to ACI 318 > 1905A.1 General > 1905A.1.14 ACI 318, Table 21.2.2
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Replace Table 21.2.2 as follows:
TABLE 21.2.2
STRENGTH REDUCTION FACTOR Φ FOR MOMENT, AXIAL FORCE, OR COMBINED MOMENT AND AXIAL FORCE
NET TENSILE STRAIN εtCLASSIFICATIONΦ
Type of transverse reinforcement
Spirals conforming to 25.7.3Other
εt ≤ εtyCompression-controlled0.75(a)0.65(b)
εty < εt < 0.005Transition1,2(c)(d)
εt ≥ 0.005Tension-controlled30.9(e)0.9(f)
  1. For sections classified as transition, it shall be permitted to use Φ corresponding to compression-controlled sections.
  2. ε t * is the greater of net tensile strain calculated for Pn = 0.1Agf'c and 0.005.
  3. For sections with factored axial compression force Pu ≥ 0.1Agf' c, Φ shall be calculated using equation (c) or (d) for sections classified as transition, as applicable.

Related Code Sections


1905A.1.14 Concrete, ACI 318, Table 21.2.2
Replace Table 21.2.2 as follows: TABLE 21.2.2 STRENGTH REDUCTION FACTOR Φ FOR MOMENT, AXIAL FORCE, OR COMBINED MOMENT AND ...
Los Angeles Building Code > 19A Concrete > 1905A Modifications to ACI 318 > 1905A.1 General > 1905A.1.14 ACI 318, Table 21.2.2
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Section 318 Provisions for All Compliance Methods, Definitions
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