Wher can I find information on how the world trade centre was constructed Foundation type, type of structure, cladding systems etc.

• ID# 163.2 (reply to #163.1) - 21 Apr 2000
  Can't seem to find any specific online source -- the High-rise Case Study site, which had some good info, has already gone offline. ED
  • ID# 163.3 (reply to #163.2) - 22 Apr 2000
    Well, there's something on the subject at the Garth's Hall of Architecture.
    E "Arsenal FC @ European Final - Who's ManU?" D

• ID# 163.4 (reply to #163.1)
  From: Nate Lindsey ([email protected]) - 25 Apr 2000

  The following books have info on the World Trade Center, NYC.
  100 of the World's Tallest Buildings, by the council on Tall Bldgs & Urban Habitat w/I Zaknic, M. Smith & D. Rice. See page 202..."Built on six acres of landfill, the foundations extend 70 feet below ground to rest on solid bedrock... " and "...closely spaced exterior columns and beams form a steel tube which, together with the internal frame, made it possible to withstand not only gravity loads but even more critically the wind loads....at the very top the maximum drift is just three feet..."
  More in-depth and with broader scope of information is in the book, New York 1960, by Stern, Mellins & Fishman. See pages 198-206 in particular. "�The aluminum clad towers�." and "�Trade Center was structurally innovative�was held up mostly by the closely spaced exterior columns, which, together with their cross members, formed a right-square or Vierendeel-type truss�"
  There�s plenty more in this book.
  The Structural Engineer was Skilling , Helle, Christiansen & Robertson. The architect: Minoru Yamasaki and Assoc.
  The structural Engineer Leslie E. Robertson (I hope I spelled it correctly) gave a lecture at the Skyscraper Museum in NYC last fall. I'm sure the Skyscraper Museum has gathered much information about the construction of the World Trade Center. They have a website: WWW.Skyscraper.org
  -n8

• ID# 163.5 (reply to #163.1)
  From: Warren - 15 September 2001

  They're gone. both 110 story WTC Towers. WTC Tower 7 (47 stories) has collasped. WTC Tower 5 (54 stories 747ft.) is buckling, and may collapse.

• ID# 163.6 (reply to #163.1)
  From: Sad - 15 September 2001

  No need, She is gone now and forever Unfortunantly and will be missed. She was a good old girl, she stood out among the rest and in a since, was a work of art.
  Where is the Japanese guy who designed her and why hasn't he come forward and gone on the news?

  • ID# 163.7 (reply to #163.6) - 15 September 2001
    Minoru Yamasaki died in 1987 (born 1912), maybe more mercifully so. ED

• ID# 163.8 (reply to #163.1)
  From: Philippe Delavigne ([email protected]) - 29 November 2002

  If Al-Qaeda terrorists - or some dupe used by them - had set out to research the Twin Towers in terms of inflicting maximum damage by hurling large, fuel-laden aircraft at them, what would have been the best sources as far as you can tell?