Steel Roof Joist Chord Reinforcement

Provide a lightweight low cost rigid floor assembly c joist components provide an economical lightweight alternative to open web trusses bar joists engineered lumber cast in place or hollow core floor assemblies.

Steel roof joist chord reinforcement.

New sji rule on steel joists steel joist do s and don ts recognize how and when to specify total uniform load or. Steel joist institute publication technical digest no. To prevent sag in 2x6 s and strengthen at same time you could secure lengths of stainless steel or galvanized cable attach at each end of individual ceiling joists have cable go over a one or two spreaders or strut projecting down from the underside of the ceiling joist maybe 12 14 or so as not to lose too much headroom these could. Steel joist institute states.

Steel joists joist girders. Structural track usually in the same gauge as the. Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike. Sji members offer guidance about how and when to specify loads.

From the bottom chord towards the end of the joist. Steel joists and girders steel deck the hambro composite floor system econox prefabricated buildings and murox insulated wall panels. To summarize the principles of joist reinforcement consideration must be given to the. Panel points have a negligible effect on the overall performance of the joist.

12 evaluation and modification of open web steel. Chord reinforcement typical reinforcement details top chord more difficult to reinforce since the floor or roof. Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs. Although standard k series including kcs series and standard lh series joists are designed specifically to support uniformly distributed loads applied to the top chord research conducted by the steel joist.

A floor or roof covering made out of gage metal attached by welding or mechanical means to joists. 2 are several details that have been used to reinforce the top or bottom chords of joists. Depending on loads and spans c joists are typically spaced at 12 16 19 2 or 24 on center spacing. Thanks to its buildmaster fast.

Top chord reinforcement usually presents a bigger problem than the bottom chord because roof or floor deck is usually in place and interferes with the placement of reinforcement and welding.