In the context of commercial construction projects in Australia, a "column" is a vertical structural element that primarily bears compressive loads. Columns are crucial components in the structural framework of buildings, providing support for beams and slabs, and transferring loads from the upper parts of the structure down to the foundation.

To ensure compliance with Australian standards and regulations, columns in commercial construction projects must adhere to the following:

1. AS 2124 (General Conditions of Contract) and AS 4000 (General Conditions of Contract for Construction):
   - These standards outline the contractual obligations and responsibilities of parties involved in construction projects. While they do not provide specific technical requirements for columns, they ensure that all construction activities, including the design and installation of columns, are carried out in accordance with agreed-upon terms and industry standards.

2. AS/NZS 1170 (Structural Design Actions):
   - This set of standards specifies the minimum design loads and other actions that structures, including columns, must be able to withstand. It includes provisions for dead loads, live loads, wind loads, earthquake loads, and other relevant forces. Columns must be designed to handle these loads safely and effectively.

3. Building Code of Australia (BCA):
   - The BCA, part of the National Construction Code (NCC), sets out the minimum requirements for the design, construction, and performance of buildings in Australia. For columns, the BCA mandates compliance with structural integrity, fire resistance, and durability requirements. Columns must be designed and constructed to ensure the stability and safety of the building, considering factors such as load-bearing capacity, material specifications, and fire protection measures.

In summary, a column in commercial construction projects in Australia must be designed and constructed to meet the structural, safety, and performance requirements outlined in AS/NZS 1170, the BCA, and the contractual conditions specified in AS 2124 and AS 4000. Compliance with these standards ensures that columns can safely support the loads imposed on them and contribute to the overall stability and safety of the building.