Strength Is Overrated
04.04.2012 17:59 It feels like there’s been a lot of talk recently about being strong, and it annoys me because so often it feels like the only thing being honored when there are so many things that make people amazing. What gets us through the grey and darker times isn’t just strength. It’s tenacity, flexibility, courage, resignation, ingenuity, cussedness, and possibly knowing someone will come back from the dead to kick you in the ass if you do something too stupid.
During the workday, I entertain my brain by designing the parts of buildings that keep the building standing - the studs, the trusses, the beams, the columns, the connectors and the bolts. The question as I design each of these pieces is rarely how much strength do I need to make this part of the building stand. Invariably the question is I have these two/three elements with known properties, how many do I need to carry the load and where do I need them? Strength is part of what I need to know about the elements; but, just as important are geometry, constructability, shape, finish and ductility.
In fact, I often don’t use the strongest material possible. We don’t talk about it much; but, there are problems with too much strength. The easiest, and most accepted reason is that the higher strength material just costs too much. The shape of structural elements also matters more than most realize; often, I find myself in a situation where I could increase the strength ten times and the amount of material I need wouldn’t change because the performance requirements, like deflection or the ability to make the required connections, dictate the shape. The quietest reason for not using the strongest material is that it tends to break in a bad way.
Yeah, I know it’s hard to think of a good structural break. But, the higher the strength, the more damaging the break and the more unexpected. They’re called brittle failures. They come with little warning. They’re often catastrophic. And, by simply using a lower strength material - with more redundancy and more warnings - we have a better chance of catching a failure before it costs lives.
I worry about the focus on strength as a character trait. Too much strength is a liability. It makes us brittle. It means that little things we could work through become catastrophic more readily. It’s a waste of resources when applying something else - like flexibility or cussedness - would be a better use of our energy. It’s a limits what’s in the tool box to get us out of our holes.
Water and time made the Grand Canyon.
kmsqrd |
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