How To Web A Floor Truss

How to build a floor truss.

How to web a floor truss.

Elements that make a floor truss. Using floor trusses allows you to utilize eight foot basement walls as the ductwork is installed within the openings of the floor truss. Inclined or horizontal member that establishes the bottom of a truss usually carrying combined tension and bending stresses. With repetitive web w orientation.

Maximum deflection is limited by l 360 or l 480 under live load. Far greater than ewp and conventional framing. Additionally having the mechanicals and ductwork hidden within the web openings of the floor truss allows for the easy installation of drywall to the bottom chord of the floor truss to finish off a ceiling. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00.

Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91. Spacing of trusses are center to center in inches. Use this handy guide to learn how using alpine floor trusses gives you the solutions to stay on schedule and maintain quality construction and profits. Alpine floor truss guide.

Roof floor truss manual 7 31 08 10 43 am page 12. For floor truss applications the top and bottom chord panels are typically 30 length usually with a 24 wide rectangular chase or duct opening at the centerline. 72 5 0 mi ni m u m girder floor truss floor truss jacks a a bearing wall girder floor truss floor truss jacks bearing wall cantilevered floor truss two 2x rim joists 24 max. Open web floor trusses can support greater concentrated loads to carry bearing walls and roof loads from above.

And parallel to floor truss span strongback lateral supports 24 max. Structural support usually a beam wall or post that is designed by the building designer to carry the truss reaction loads to the foundation. Cantilevers can include built in details such as dropped top chords for balcony decking.