Concrete

Inadvertent Structural Action

The title of this post is recycled from a talk I gave 16 years ago, “Inadvertent Structural Action in Traditional Buildings; or Why Hasn’t That Fallen Down Yet?” That talk was about how buildings that were constructed without structural design are often stronger than we think they are. The picture above is not that, but …

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Concrete, Part 4

I’ve said that different materials lend themselves to different forms, and that there is such a thing as a concrete-inflected structural type. That idea leads, unfortunately, to a discussion of the collapse of the Morandi Bridge in Genoa last August. The bridge had a number fo different components (click on the picture above to expand it) …

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Concrete, Part 3

Concrete has become something of a scapegoat for carbon emissions in building, but it’s amazingly difficult to pin down how bad it is, as a material, compared with other options. The problem, simply, is that it is difficult to make apples-to-apples comparisons of efficiency and carbon use across different structural systems. Let’s start with weight. …

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