The columns of multi-storeyed buildings are designed to withstand the forces due to A. Dead loads B. Live loads C. Wind loads D. All of these

The correct answer is D. All of these.

Columns in multi-storeyed buildings are designed to withstand the following forces:

• Dead loads: These are the permanent loads that are always present on the structure, such as the weight of the building itself, the weight of the floors and walls, and the weight of any equipment or furnishings.
• Live loads: These are the loads that vary over time, such as the weight of people, furniture, and equipment that move in and out of the building.
• Wind loads: These are the loads that are caused by the wind blowing against the building.

The columns must be strong enough to withstand all of these forces without collapsing.