Specifying and achieving a level composite steel floor

floor_Overall photo 3

Composite steel assemblies are an efficient and popular structural option for floor construction. Figure 1 shows a typical assembly, consisting of a steel beam, metal deck, concrete slab, and shear connectors. The composite action between the steel beam and concrete provided by shear connectors creates the composite properties that make the system a very stiff and strong structural element.

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Using modern wood for historic restoration

Accoya_Oakleigh_Church 1

When it comes to historic preservation projects, architects and installers can find themselves at a loss. Wood is the most traditional material, but also notoriously unstable. It has a tendency to warp and becomes vulnerable to rot, decay, and insects. Some replacement products are more durable, but far from historically accurate, such as aluminum-framed windows.

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Specifying Broomed Exterior Concrete Surfaces


As a safety requirement, all exterior concrete surfaces must have a slip-resistant surface. The most common method for this is specifying a ‘broom finish.’ But, is that all there is to it? Specifications must also satisfy owner requirements for appearance, flatness, texture, as well as drainage.

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Cold-formed Steel Framing Gets Complicated

CFS_02 BP Hall by Alex Pitt - Courtesy The Music Center

During the medieval period, complex Gothic structures were built from drawings that communicated a designer’s overall vision without detailing specific means of construction. Master craftsmen translated designs into buildable structures using simple tools available at the time. Now, in some respects, the construction industry has come full circle.

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