The term 'eccentric footing' refers to a footing: 

Explanation:

• An eccentric footing is used when the column cannot be placed at the center of the footing, often due to space constraints like property boundaries.

• This results in uneven load distribution, and special design considerations (like connecting beams or reinforcements) are needed to prevent tilting or rotation.

Additional Information

Shared by multiple columns (Combined Footing):

• Used when two or more columns are close together and their isolated footings overlap.

• Distributes loads evenly across multiple columns.

• Can be rectangular or trapezoidal in shape.

Used for machine foundations:

• Refers to foundations designed for machinery to resist vibrations and dynamic loads.

• Usually requires special designs like block-type or slab foundations.

• Found in industrial settings, such as factories or power plants.

Having a circular shape:

• Refers to a circular isolated footing, which is used for centrally loaded columns.

• Common in lightweight structures or specific column types like flagpoles or small towers.

• Provides uniform load distribution around the column.