World Trade Center

Publications

Global Structural Analysis of the Response of WTC Building 7 to Fires and Debris Impact Damage

This report analyzes the structural collapse of World Trade Center Building 7 (WTC 7) due to fire-induced damage and debris impact following the 9/11 attacks. Using finite element modeling, the study examines thermal expansion, column instability, and progressive collapse mechanisms, providing insights into high-rise structural failures and fire safety improvements.

Public Update on the Federal Building and Fire Safety Investigation of the WTC Disaster

National Institute of Standards and Technology

Here you can find public updates on the world trade center disaster

Numerical Investigation into the Aircraft Impact Problem on RC Structure

M. Katayama, M. Itoh, R. Rainsberger.

Chapter 16 presents a numerical analysis methodology for evaluating the structural response of reinforced concrete structures under aircraft impacts and high-explosive detonations. Using advanced finite element modeling, the study explores failure mechanisms, material interactions, and impact resistance across various extreme loading scenarios, contributing to improved protective designs and computational modeling techniques.

Numerical Simulation of Jumbo Jet Impacting on Thick Concrete Walls

By M. Katayama, M. Itoh, R. Rainsberger.

This study uses three-dimensional numerical simulations in AUTODYN®-3D to analyze the impact of a Boeing 747 on reinforced and non-reinforced concrete walls of varying thickness. It evaluates structural response, material failure, and damage patterns, offering insights into impact-resistant design and computational modeling of high-velocity impacts.

Analysis of Aircraft Impacts into the World Trade Center Towers

This report analyzes the structural damage caused by the Boeing 767 impacts on the World Trade Center Towers as part of the NIST investigation. Using advanced finite element modeling, it assesses exterior wall, core column, and floor system damage, as well as fuel and debris dispersion, providing insights into fire spread and collapse initiation.