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In addition to the World Trade Center, his "little company that could" constructed some of the nation’s most notable edifices, including the US Senate Chambers Building of the Capital, US Supreme Court, Library of 85 Congress, US Department of Commerce...
www.ruskinmoscou.com...
One of Koch Skanska's (then Karl Koch Erecting) contracts was the construction of the World Trade Center's steel frames in 1967–1971. Koch Skanska also participated in the clearing of its debris in 2001.
en.allexperts.com...
Originally posted by In nothing we trust
And guess who cleaned up the WTC afterwards.
One of Koch Skanska's (then Karl Koch Erecting) contracts was the construction of the World Trade Center's steel frames in 1967–1971. Koch Skanska also participated in the clearing of its debris in 2001.
en.allexperts.com...
The core columns were steel box-columns that were continuous for their entire height, going from their bedrock anchors in the sub-basements to near the towers' tops, where they transitioned to H-beams. Apparently the box columns, more than 1000 feet long, were built as the towers rose by welding together sections several stories tall. The sections were fabricated by mills in Japan that were uniquely equipped to produce the large pieces. 2
Some of the core columns apparently had outside dimensions of 36 inches by 16 inches. Others had larger dimensions, measuring 52 inches by 22 inches. 3 The core columns were oriented so that their longer dimensions were perpendicular to the core structures' longer, 133-foot-wide sides. Construction photographs found at the Skyscraper Museum in New York City indicate that the outermost rows of core columns on the cores' longer sides were of the larger dimensions. Both the FEMA's World Trade Center Building Performance Study and the NIST's Draft Report on the Twin Towers fail to disclose the dimensions of the core columns, and the NIST Report implies that only the four core columns on each core's corners had larger dimensions.
Like the perimeter columns -- and like steel columns in all tall buildings -- the thickness of the steel in the core columns tapered from bottom to top. Near the bottoms of the towers the steel was four inches thick, whereas near the tops it may have been as little as 1/4th inch thick. The top figure in the illustration to the right is a cross-section of one of the smaller core columns from about half-way up a tower, where the steel was about two inches thick. The bottom figure shows the base of one of the larger core columns, where the steel was five inches thick. The bases of the columns also had slabs of steel running through their centers, making them almost solid.
Originally posted by Rotator
The outer tube was the worst outer tube ever constructed, add that to the inner tube (core) and you have probably the the worst towers ever constructed.
[edit on 25-3-2007 by Rotator]
Originally posted by 11Bravo
Yup, its amazing they stood as many years as they did huh?
Surprising they withstood the 1975 fire that consumed the 11th floor.
Surprising they withstood the addition of a 360 foot television tower in '78.
Surprising they withstood the '96 bombings without simply crumbling to the basement like you would expect from 'probably the worst towers ever constructed'.
Originally posted by In nothing we trust
I'm surprised they didn't crumble thier own weight sooner. The slightest wind should have toppled those buildings much earlier. Look how they just fell apart at the seams in record time.
[edit on 25-3-2007 by In nothing we trust]
Originally posted by esdad71
So, is the conspiracy now that the towers were poorly built?
Originally posted by Rotator
When the bids for the steel where put out to tender only two firms submitted tenders for the work, they were U.S. Steel: $122 million Bethlehem Steel: $118 million, both bids where claimed to be expensive.
The 2nd round of tenders began and only 1 small firm submitted a further tender.
The name of the firm was The Karl Koch Erecting Company their bid of $20 million was accepted.
Originally posted by Rotator
The project managers Austin Tobin and Guy Tozzoli fired the original architects and replaced them with Minoru Yamasaki from Japan.
Originally posted by In nothing we trust
I'm surprised they didn't crumble thier own weight sooner. The slightest wind should have toppled those buildings much earlier.
Originally posted by Pootie
Originally posted by In nothing we trust
I'm surprised they didn't crumble thier own weight sooner. The slightest wind should have toppled those buildings much earlier.
this is some of the most ridiculous piece of misleading speculation I have read on here in a long, long time. 'The slightest wind'? Do you realize the daily wind shear forces exerted on these buildings?
Originally posted by 11Bravo
I believe INWT is joking, as am I.