And Feng Xiao, Ph. D., Associate Professor Nanjing University of Science and Technology
Department of Civil Engineering This report presents the findings and conclusions of a four …

This paper presents some findings of the FEMA-and SEA/AISC-sponsored investigation into
the structural performance of New York's World Trade Center following the attacks of …

Abstract The National Institute of Standards and Technology (NIST) conducted an extensive
investigation of the collapse of World Trade Center towers (WTC 1 and WTC 2) and the WTC …

Immediately following the terrorist attack on the World Trade Center (WTC) on September
11, 2001, the Federal Emergency Management Agency (FEMA) and the American Society of …

Seffen's paper presents what it calls a simple analysis for the dynamics of the World Trade
Center WTC, implicitly just the South and North Towers collapses. He claims the “factors …

There have been numerous reports detailing the cause of the World Trade Center Tower
collapse on September 11, 2001. Most have provided qualitative explanations; however …

The September 11 th terrorist incidents caused colossal destruction and significant damage
to a number of buildings in the World Trade Center (WTC) vicinity of New York and the …

This paper summarizes the primary structural systems that comprised World Trade Center
(WTC) 1, 2, and 7, which were destroyed in the terrorist attacks of September 11, 2001 …

The original 7 World Trade Center was 47 stories tall, clad in red granite masonry, and
occupied a trapezoidal footprint. An elevated walkway spanning Vesey Street connected the …

This paper presents a simplified approximate analysis of the overall collapse of the towers of
World Trade Center in New York on September 11, 2001. The analysis shows that if …