2 ms·
Maybe this is covered in the New Yorker article marklabedz linked to, but I'm curious what their solution to quartering winds was. (They mention welding as a pa
by morley 13y ago
Maybe this is covered in the New Yorker article marklabedz linked to, but I'm curious what their solution to quartering winds was. (They mention welding as a part of the solution but don't go into more detail.)
- morley 13y agoI found the answer in the Wikipedia article[1]: > For the next three months, a construction crew welded two-inch-thick steel plates over each of the skyscraper's 200 bolted joints during the night, after each work day, almost unknown to the general public. [1] http://en.wikipedia.org/wiki/Citigroup_Center http://en.wikipedia.org/wiki/Citigroup_Center