Drift-Dependent Confinement Requirements for Reinforced Concrete Columns Under Cyclic Loading | Zendy

Ingo Brachmann | Zendy; JoAnn A. Browning | Zendy; Adolfo Matamoros | Zendy

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Drift-Dependent Confinement Requirements for Reinforced Concrete Columns Under Cyclic Loading

Author(s) -

Ingo Brachmann,

JoAnn A. Browning,

Adolfo Matamoros

Publication year - 2004

Publication title -

aci structural journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.952

H-Index - 109

eISSN - 1944-7361

pISSN - 0889-3241

DOI - 10.14359/13389

Subject(s) - structural engineering , reinforced concrete , column (typography) , computer science , engineering , forensic engineering , geotechnical engineering , connection (principal bundle)

This paper examines the influence of transverse reinforcement and axial load on the drift limit of rectangular columns using test results from 184 specimens subjected to cyclic loading. Columns within the set were selected to have shear span-to-depth ratios of at least equal to 2.5 so that truss action would be the main mechanism of shear resistance and the deformation component related to shear would be small compared with that related to flexure. Expressions relating the limiting drift ratio to the axial load ratio and the amount of confining reinforcement were evaluated. Equations indicating the amount of confining reinforcement required to achieve a given limiting drift ratio for reinforced concrete columns in regions of moderate and high seismicity are proposed.

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