1. Dead Loads:
Dead loads consist of self-weight of the structure (weight of walls, floors, roofs etc). The weight of the foundation and footings and all other permanent loads acting on the structure. These can be computed by finding the weights of cubical contents of the different materials used for constructing the structure.
2. Live Loads:
Live loads consist of moving or variable loads like people, furniture, temporary stores etc. It is also called super-imposed load.
3. Wind Loads:
The Wind acts horizontally on the surfaces of the walls, roofs and inclined roof of the structure. That means it exerts uniform pressure on the structural components on which it acts and tends to disturb the stability of the structure.
The value of wind loads varies depending on several factors such as geographical location of the structure, height of the structure, duration of wind flow etc.
4. Snow Loads:
The amount of snow load depends on various factors such as shape and size of roof structure, roofing materials, location of the structure, insulation of the structure, duration, and frequency of snow.
5. Seismic Load:
These loads are internal forces which act on the structure due to earthquake developed ground movements.