MasterFormat

Category Archives: MasterFormat

Air-loop window walls

Some windows walls  employ designs that include exposed slab edges, but these can lead to potential problems. Rethinking the basic design concepts could have important benefits. All images courtesy Raymond Ting

In this second part on a two-article series on air-loop window walls, the author discusses nine potential problems with traditional exposed and covered slab-edge design and explores how to eliminate the causes of concern.

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Managing Daylighting with Shading

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Skylights are effective for allowing daylight into buildings. However, this needs to be properly managed to ensure spaces are not flooded with too much daylight and the risk of glare is mitigated. The amount of solar radiation coming through horizontal and inclined glazing is much greater than vertical façades, and this can cause significant heat gain issues.

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Duplex Stainless Steel Revolutionizes Structural Design

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Architectural and engineering firms are increasingly exploring stainless steel’s possibilities as a structural material as new research, structural codes, and design guides become available. Most designs have used the familiar Types 304L or 316L alloys from the austenitic family of stainless steels, but for all but the lightest sections, the duplex stainless steel family presents a much greater potential for innovation.

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Solving window wall problems by eliminating causes

Some windows walls  employ designs that include exposed slab edges, but these can lead to potential problems. Rethinking the basic design concepts could have important benefits. All images courtesy Raymond Ting

Window walls eventually fail under repeated occurrences of causes like loads, movement, stress fatigue, and the degradation of material properties due to aging. How can one simply anticipate the ‘causes’ and then design to eliminate them in the first place? A rethinking of traditional glazing design is in order.

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Weighty Matters: An overview of in-situ load testing

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In-situ load testing is a powerful tool to assess the performance of structures with respect to their ability to carry code-prescribed loads. The practice dates back to the late 1800s and has been used to verify the load rating of structures, as well as the expected performance of structures in retrofit, repair, and strengthening applications.

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