Explosions Before The Collapse of WTC 7

[gyroscope]

53. Cardington fire tests disprove official collapse theory

Note the part in upper case.


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The Behaviour of Multi-storey Composite Steel Framed
Structures in Response to Compartment Fires

Susan Lamont

Doctor of Philosophy, University of Edinburgh, 2001.

Forward from Susan Lamont:

For many years the ability of highly redundant composite framed structures to resist the effects of fire has been undervalued and largely misunderstood. This was first realized when, after a number of real fires in multi-story composite steel framed structures structural failure did not occur. The Broadgate Phase 8 fire is probably the most notable. This accidental fire happened during the Construction phase when the steel frame was only partially fire protected. Despite very high temperatures during the fully developed phase of the fire and considerable deflections in the composite slab there was no collapse. THIS INITIATED CONSTRUCTION OF AN 8-STOREY COMPOSITE STEEL FRAME AT BUILDING RESEARCH ESTABLISHMENT LARGE SCALE TEST FACILITY IN CARDINGTON. SIX FIRE TESTS WERE CONDUCTED, OF VARYING SIZE AND CONFIGURATION, TO OBSERVE AND ULTIMATELY EXPLAIN WHY COMPOSITE STEEL-FRAMED STRUCTURES ADOPT VERY LARGE DEFLECTIONS DURING A FIRE BUT DO NOT COLLAPSE.


Declaration

This thesis and the research described and reported within has been completed solely by Susan Lamont under the supervision of Dr A.S. Usmani, Prof. D.D. Drysdale, Dr B. Lane and Prof. J.M. Rotter.

Where other sources are quoted full references are given.

Susan Lamont, 29th September 2001.

https://www.era.lib.ed.ac.uk/handle/1842/1485
http://911research.wtc7.net/mirrors/guardian2/fire/SLamont.htm