What Does Floor Load Width Mean

Assume that the floor system must support its own weight of 40 psf dead load and a live load of 100 psf. Total floor load 40 100 140psf column load tributary area total floor load 2 2 1b ft 360 ft 140 50 400 lb. In other words the weight is distributed or shared uniformly by the members in the floor or roof system.

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Floor Loads

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A uniform load rating on a beam can easily be translated into what an equivalent maximum point load can be.

What does floor load width mean.

Joist spacing common joist spacings for 2 by 10 joists and other dimensional lumber sizes are 12 16 and 24 inches. The requirement to design a floor for a uniform load of 50 psf over the entire area for a particular member does not mean that this is the largest load that can be placed on the floor. It does not mean that a 300 lb. The load is an average value for a typical office space with desks filing cabinets aisles etc.

A typical wood frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot. Joists that are closer together can support. But larger is not always better when builders are constructing a home or adding a room addition. As can be seen by the concentrated load requirement the 2 000.

For example a floor joist at 16 spacing s that can carry 53 pounds per linear foot would translate into a 318 pound single point load at its. Floor joists support structural load and require lumber species capable of supporting those loads. For the most part live load and dead load values for floor and roof systems are considered distributed loads. The live load of a floor.

Flw is used to calculate the sectional size of. Two species used for structural lumber include douglas fir and southern yellow pine. This is the fourth video in the series on the timber framing code. This video looks at floor load width flw.

What is the column load for column b3. Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. Lineman standing on one leg will fall through the floor. Floor load definition is the load that a floor as of a building may be expected to carry safely if uniformly distributed usually calculated in pounds per square foot of area.

The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example. In order to establish proper sizes grades and on center spacing of joists and rafters you first need to determine what loading. The dead load on a floor is determined by the materials used in the floor s construction. If there s wall board covered ceiling suspended from the underside of that floor the dead load increases to about 10 pounds per square foot.