In Australian commercial construction projects, a "live load" refers to the temporary or movable forces that a structure must support during its use. These loads are not permanently attached to the structure and can vary over time. Live loads typically include the weight of people, furniture, equipment, vehicles, and other movable objects that the building or structure is designed to accommodate.  

The live load is an important consideration in structural engineering and design, as it affects the safety and stability of the building. Engineers must calculate and account for these loads to ensure that the structure can safely support them without excessive deflection or failure. The specific requirements and guidelines for live loads in Australia are outlined in the Australian Standards, particularly AS/NZS 1170.1, which provides detailed information on the minimum design loads for buildings and other structures.

Examples of live loads in commercial construction projects include:

1. People: The weight of people standing, walking, or sitting on floors, stairs, and other structural elements.
2. Furniture: The weight of tables, chairs, cabinets, and other furniture that are placed on floors, shelves, and other surfaces.
3. Equipment: The weight of machines, appliances, and other equipment that are installed or used in the building.
4. Stock: The weight of goods, materials, and other items that are stored or displayed in the building.
5. Vehicles: The weight of cars, trucks, and other vehicles that are parked or driven on the building's parking areas, driveways, and other external structures.

For example, the National Construction Code (NCC) of Australia requires that the design live load for commercial buildings should be at least 2.0 kPa (200 kg/m2) for general use areas, such as offices, shops, and restaurants. Higher live load requirements may be specified for areas with heavier or more concentrated loads, such as storage areas, mezzanine floors, and industrial workshops.

In addition to the design live load, the NCC also requires that the building should be able to withstand certain accidental or emergency loads, such as the impact of a vehicle, the collapse of a crane, or the explosion of a gas cylinder. These loads are not considered in the design of the structure, but they must be taken into account in the selection and installation of safety features, such as barriers, guards, and emergency exits.