Government's "Official" fairy tale now an official LIE! A Structural Reevaluation of the Collapse of World Trade Center 7 (Video's)

Project Info

Lead Researcher(s)

Project Team

  • Feng Xiao, Associate Professor, Nanjing University of Science and Technology
  • Zhili Quan, Bridge Engineer, South Carolina Department of Transportation

Project Dates

May 1, 2015 - September 30, 2019

Funding

Architects & Engineers for 9/11 Truth
Project Budget: $316,153

Draft Report

A Structural Reevaluation of the Collapse of World Trade Center 7 (September 2019)

Simulations and Videos

Figure 4.16
Hypothetical Failure of Columns 76 to 81

Figure 4.20
Hypothetical Simultaneous Failure of All Core Columns

Figure 4.24a
Near-Simultaneous Failure of All Columns, Perspective 1

Figure 4.24a
Video of WTC 7 Collapse, Perspective 1

 

Figure 4.24b
Near-Simultaneous Failure of All Columns, Perspective 2

 

Figure 4.24b
Video of WTC 7 Collapse, Perspective 2

Presentations

A Structural Reevaluation of the Collapse of World Trade Center 7 presentation by Dr. Leroy Hulsey on September 3, 2019 at the University of Alaska Fairbanks.

Collapse of World Trade Center Building 7 presentation by Dr. Leroy Hulsey on September 6, 2017 at the University of Alaska Fairbanks.

Progress Reports

WTC7 Progress Report (September 2017)

WTC7 Progress Statement (March 27, 2018)

Project Summary

This is a study of the collapse of the 47-story World Trade Center Building 7 (WTC7) at 5:20 P.M. on September 11, 2001.

The objective of the study was threefold: (1) Examine the structural response of WTC 7 to fire loads that may have occurred on September 11, 2001; (2) Rule out scenarios that could not have caused the observed collapse; and (3) Identify types of failures and their locations that may have caused the total collapse to occur as observed.

The UAF research team utilized three approaches for examining the structural response of WTC 7 to the conditions that may have occurred on September 11, 2001. First, we simulated the local structural response to fire loading that may have occurred below Floor 13, where most of the fires in WTC 7 are reported to have occurred. Second, we supplemented our own simulation by examining the collapse initiation hypothesis developed by the National Institute of Standards and Technology (NIST). Third, we simulated a number of scenarios within the overall structural system in order to determine what types of local failures and their locations may have caused the total collapse to occur as observed.

The principal conclusion of our study is that fire did not cause the collapse of WTC 7 on 9/11, contrary to the conclusions of NIST and private engineering firms that studied the collapse. The secondary conclusion of our study is that the collapse of WTC 7 was a global failure involving the near-simultaneous failure of every column in the building.

The research team is currently organizing and uploading all of its data into a format that can be readily downloaded and used. We expect to post the data sometime between September 16 and September 30, 2019.

There will be a two-month public comment period from September 3 to November 1, 2019, with the final report will be released later this year. During this period, we welcome any and all members of the public to submit constructive comments intended to further the analyses and presentation of findings contained in the report. Designated reviewers external to UAF and Architects & Engineers for 9/11 Truth will also review the report during this period. Commenters are asked to send their comments in an attached PDF or Word document to publiccomment@AE911Truth.org.

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