no PhD level structural/civil engineers or highrise architects have challenged the final report on WTC 7.
stop lying...
Hugo Bachmann, PhD – Professor Emeritus and former Chairman of the Department of Structural Dynamics and Earthquake Engineering, Swiss Federal Institute of Technology. Author and co-author of Erdbebenbemessung von Stahlbetonhochbauten (Seismic Analysis of Concrete Reinforced Structures) (1990), Vibration Problems in Structures: Practical Guidelines (1995), Biege- und Schubversuche an teilweise vorgespannten Leichtbetonbalken (Structural Analysis of Linked Concrete Beams) (1998), Hochbau für Ingenieure. Eine Einführung (Structural Construction for Engineers. An introduction) (2001), Erdbebensicherung von Bauwerken (Earthquake-proofing Buildings) (2002).
Tages Anzeiger Article 9/9/06: "In my opinion the building WTC 7 was, with great probability, professionally demolished," says Hugo Bachmann, Emeritus ETH [Swiss Federal Institute of Technology] - Professor of Structural Analysis and Construction. And also Jörg Schneider, likewise emeritus ETH - Professor of Structural Analysis and Construction, interprets the few available video recordings as evidence that "the building WTC 7 was with great probability demolished."
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Jörg Schneider, Dr hc – Professor Emeritus, Structural Dynamics and Earthquake Engineering, Swiss Federal Institute of Technology. Former President, Joint Committee on Structural Safety, Swiss Federal Institute of Technology. Elected member of the Swiss Academy of Engineering Sciences. Former Vice President and honorary lifetime member of the International Association for Bridge and Structural Engineering.
Tages Anzeiger Article 9/9/06: " In my opinion the building WTC 7 was, with great probability, professionally demolished," says Hugo Bachmann, Emeritus ETH [Swiss Federal Institute of Technology] - Professor of Structural Analysis and Construction. And also Jörg Schneider, likewise emeritus ETH - Professor of Structural Analysis and Construction, interprets the few available video recordings as evidence that "the building WTC 7 was with great probability demolished."
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David Leifer, BSc, B.Arch, M.Ed, PhD, IEng, ACIBSE – Coordinator, Graduate Programme in Facilities Management, University of Sydney. Formerly taught at University of Auckland (1993 - 2001), University of Queensland (1986 - 1993), Mackintosh School of Architecture (1984 - 1986). Registered Architect. Incorporated Engineer.
Statement 7/1/07: "The frequently repeated TV images of the aircraft slamming into the World Trade Centre overwhelmed any thoughtful response. Naturally, the collapse of the buildings was attributable to this traumatic event.
It was only later when pictures emerged showing the inappropriate damage to the Pentagon – reported to have been caused by a large aircraft crashing through several layers of external wall – that professional doubt was aroused in my mind. Thereafter, The fall of the World Trade Center video showed the side of one tower ‘unzipping’ along one side of a damaged floor. My knowledge of structure and dynamics told me that unless the other sides simultaneously ‘unzipped’ there was no way that the tower would have ‘pancaked’ onto it’s own footprint: it should surely have toppled outwards. That both towers did the same was just too improbable to be plausible.
Hence I am anxious to learn what really happened."
A Letter Of Support From Dr. David Leifer, Senior Lecturer in Architecture, University of Sydney | 911Blogger.com
Mario Fontana, Dr Sc CE – Professor of Structural Analysis and Construction, Institute of Structural Engineering, Swiss Federal Institute of Technology. Former Director of the Steel Construction Division, Geilinger AG. Author of more than 40 papers on structural engineering.
Tages Anzeiger Article 9/9/06: "We simply don't know what exactly happened in WTC 7," said Mario Fontana, sitting Professor of Structural Analysis and Construction at ETH-Zurich. At conferences of structural analysis experts one has discovered only very little on the collapse of WTC 7. It is at least thinkable that a long, on-going fire could have caused the collapse of the building, according to Fontana."
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