Concrete Floor Trusses

The procedure for installing a floor structure over a slab with 2 by 6 joists can be.

Concrete floor trusses.

Roof floor truss manual 7 31. Floor trusses have built in openings which can be used to install hvac ductwork plumbing lines and electrical wiring. Each type of floor joist offers its own unique benefits and drawbacks which is why those working in carpentry all tend to have their own favorite floor joist option though they are still required to be well versed in each type of floor framing. Concrete joints are used to compensate when concrete expands or shrinks with changes in temperature.

In part this is because consumers interest in their advantages strength rigidity durability sound attenuation and suitability for in floor radiant heating and decorative concrete finishes has steadily increased. Concrete joints are normally used to prevent cracks when the concrete shrinks by creating forming tooling sawing and placing joint formers. Take sufficient quantity of speedfloor add structural steel or concrete supports mix concrete and pour. Advant steel llc believes that we offer not only the best value price for cold formed steel trusses versus c stud and other proprietary shapes but the best value price for any non combustible floor or flat roof system versus any other product whether it be structural steel bar joist concrete another cfs truss or even cfs joists.

In this case your joists are adequate to support a 30 psf live load and 10 psf dead load. In the example the joists have a spacing of 16 inches and a span of 11 feet 2 inches. This also reduces the need and cost for extra bearing posts beams and footings. Building a framed wood floor over an existing concrete slab can provide the space needed for electric wiring heat venting plumbing drain lines and added insulation when remodeling a basement or garage space.

To strengthen a truss the fabricator may double its top and bottom chords make side by side girder trusses use larger truss plates or stronger wood or use some combination of these. The pre planned cracks will provide a better finish concrete product and will be formed in specific locations where those cracks could be monitored. Structurally an open web floor truss resembles an i beam in that it puts most of its material along its top and bottom edges where stresses are greatest. Reinforced concrete floor decks have become increasingly popular in homes over the last decade.

The three main types of floor joists used in home construction are solid lumber i joists and open web floor trusses. Floor trusses can span farther between bearing points than i joists allowing for larger open rooms. Floor joist scab cantilever floor cantilevered perpendicular and parallel to floor truss span strongback lateral supports 24 max. The span table for a 30 psf live load 10psf dead load floor indicates a required fb value of 1 315 and a minimum e value of 1 800 000.