Unbalanced Moment Resistance in Slab-Column Joints: Analytical Assessment
ACI 318-05 considers that unbalanced moment, Mu , transferred between column and slab is resisted in part ( γν Mu ) by shear and the remaining part, [ (1− γν ) Mu ] by flexure. The code specifies the fraction γν and permits, in Section 13.5.3.3, that the fraction can be decreased when two requiremen...
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| Veröffentlicht in: | Journal of structural engineering (New York, N.Y.) N.Y.), 2008-05, Vol.134 (5), p.859-864 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | ACI 318-05 considers that unbalanced moment,
Mu
, transferred between column and slab is resisted in part
(
γν
Mu
)
by shear and the remaining part,
[
(1−
γν
)
Mu
]
by flexure. The code specifies the fraction
γν
and permits, in Section 13.5.3.3, that the fraction can be decreased when two requirements for the shearing force,
Vu
, and for the flexural reinforcement ratio,
ρflex
, are satisfied. Nonlinear finite-element analyses for interior, edge, and corner connections are employed to calculate the value of
γν
at all load stages up to failure, indicating that the
γν
reduction as permitted by 13.5.3.3 is not justified. This statement is supported by experimental interaction graph. |
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| ISSN: | 0733-9445 1943-541X |
| DOI: | 10.1061/(ASCE)0733-9445(2008)134:5(859) |