What is a dead load and a live load?

What is a dead load and a live load?

The dead loads are permanent loads which result from the weight of the structure itself or from other permanent attachments, for example, drywall, roof sheathing and weight of the truss. Live loads are temporary loads; they are applied to the structure on and off over the life of the structure.

What is ded load?

noun. the intrinsic invariable weight of a structure, such as a bridge. It may also include any permanent loads attached to the structure. Also called: dead weight.

What are live loads?

Live load is a civil engineering term that refers to a load that can change over time. The weight of the load is variable or shifts locations, such as when people are walking around in a building. Anything in a building that is not fixed to the structure can result in a live load, since it can be moved around.

What is a dead load on a roof?

Dead loads pertain to the weight of the roofing structure along with the permanent components of the residential property. Dead loads also include the weight of the construction materials. The dead load of asphalt shingle roofs with wooden frames is usually 15 pounds per square foot (psf).

How do you calculate dead load?

Dead load = volume of member x unit weight of materials By calculating the volume of each member and multiplying by the unit weight of the materials from which it is composed, an accurate dead load can be determined for each component.

How do I calculate dead load?

What is not considered to be a dead load?

Items that are not considered to be dead load include such things as movable shelving, desks, chairs, beds, chests, books, copiers, stored items, or anything else that can or may be moved around during the life of the structure. One feature of dead loads is that they are the weights of the final structure.

How much is a dead load?

Generally, the customary floor dead load is 10-12 PSF (pounds per square foot) for floors, 12-15 PSF for roof rafters and 20 PSF for roof trusses. However, these may increase when a heavy finish material, such as brick veneer walls or tile floors/roofs, is specified.

What is the average dead load of a house?