Open Web Steel Joist Roof

In structural engineering the open web steel joist is a lightweight steel truss consisting in the standard form of parallel chords and a triangulated web system proportioned to span between bearing points.

Open web steel joist roof.

Allowing for seamless integration of mechanical electrical and plumbing mep systems. Some of the first steel joists used in the united states in the mid to late 1800s were made of sheet steel webs and flanges riveted together. Lh and dlh joists have heavier chords and web members for heavier loads and longer spans. The main function of an owsj is to provide direct support for roof or floor deck and to transfer the load imposed on the deck to the structural frame i e.

Multi pitched top chord joists. Open web steel joists are relatively light in weight fabricated in a shop setting and have a trussed web. The k series joist web is a single bent bar running zig zag between top and bottom chords. Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs.

Steel joist institute. In order to accurately design an owsj engineers consider the joist span between bearing points joist spacing slope. Since then this design solution for architects and engineers has evolved to support large floor areas and large roof spaces of up to and over 100 feet wide. We offer superior products personalized customer service and a proactive approach to safety for customers and employees alike all to meet your unique needs and to keep your project right on schedule.

Sds formerly msds technical information. The open web design of steel joists and joist girders introduce a range of cost and performance advantages. Maximum allowed duct sizes vierendeel openings. Planning design tools.

Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike. Every open web truss is custom manufactured to the precise specifications of the individual project and designed to support the loads. Founded in 1973 canam steel corporation csc is a service oriented manufacturing company that manufactures open web steel joists and a variety of steel deck products. All vulcraft joists and joist girders are designed and manufactured in accordance to the exacting specifications of the steel joist institute.

These concentrated loads often include standard steel joists that are in turn supporting steel roof or floor deck. Engineered open web joists in our constant efforts to offer customers the latest in construction innovation we recently branched into the design and manufacture of open web joists an alternative to conventional timber joists or concrete floor slabs. In the late 1950 s redbuilt s founders invented an innovative composite steel and engineered wood open web truss.