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Structural: ConcreteTiedColumns

How to distinguish between a Spiral and Tied Column:

A Tied Column will have horizontal reinforcement (aka closed ties or hoops). This is different than a Spiral Column that will have reinforcement in the form of a continuous spiral that circles up and down the column. Note that this definition has nothing to do with whether the column is square or circular, and in fact you can have a tied circular column or spiral square column if you so choose.

Design specifications for a Tied Column:

Several details must be met when designing a tied column including:


  1. American Concrete Institute, "Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary (ACI 318R-05)", 2005
    1. Found in Section 10.9.1
    2. Found in Section 7.7.1
    3. Found in Section 7.6.3
    4. Found in Section
    5. Found in Section
    6. Found in Section 10.9.2
    7. Found in Section
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Page last modified on July 05, 2009