I ran across this the other day while looking for something else. It's a true story of an architect, his building and a surprising lack of ass-covering.
Engineers really do think different. Almost makes me wish I had had the kind of mind it takes to study it.
It also makes me wonder if the novelity is due to the rarity.
In May 1978, while working on another project, LeMessurier discovered that bolts had been used to join the diagonal braces to the columns of the Citicorp tower (by then completed and occupied). This surprised him because he had originally specified that the joints should be welded (a proper weld between two metal pieces is usually stronger than the individual metal pieces). However, when he checked into the matter, he found that the contractor had proposed the change to bolts to make construction easier and less expensive, and that, after carrying out some calculations to ensure that the bolts were strong enough, LeMessurier's chief engineer had approved the change. This was all proper practice, and so LeMessurier did not think any more of the issue at the time.
Approximately a month later, LeMessurier received a phone call from a student working on a senior-year project. To this day he does not know who the student was, but the student said, in effect: "Sir, can I bother you for a minute? I know you are a very busy man but my professor thinks you should have put the columns on the corners to better resist the loads which occur due to wind blowing on the tower."
The rest of the story
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