|Dr John Gross|
|Alma mater||Cornell University|
Dr John Gross is Associate Director for Structures Research for the National Fire Research Laboratory at the National Institute of Standards and Technology (NIST), USA.
Gross reports that his research interests include computer analysis and design of structures, structural steel, fracture mechanics, nonlinear mechanics and stability. He has been active in the development of analytical methods for shoring loads and slab capacity for multistory concrete construction and in research into the behaviour of steel-braced frame connections.
Dr Gross participated in the collapse investigation of L'Ambiance Plaza and led the Ashland Oil tank failure investigation. He conducted an analytical investigation of the Cypress Viaduct elevated highway structure that failed in the Loma Prieta earthquake of October 1989, and research into the failure of steel beam-to-column connections in the January 1994 Northridge earthquake.
September 11, 2001
In 2007, Gross was invited to speak about the WTC destruction at the University of Texas at Austin. In the Q & A session, he was questioned about the existence of molten steel at the World Trade Center and the collapse of WTC Building 7. Whilst denying any knowledge of molten steel at the site, Dr Gross made the surprise admission that the NIST investigators didn't need to do an analysis of the physical collapse of the three buildings because "the video evidence is clear".