Some Misunderstandings Related to WTC Collapse Analysis

[Jeffrey Orling]

..... The columns were never involved in the collapse based on acceleration measurements and column energy absorption capacity calculations. In other words, had the columns been involved the accelerations achieved would not have been possible.

When core aggregate axial load capacity had dropped below service loads the movements show that the columns were translated laterally enough so that and there would therefore be no column resistence or impacts. Didn't happen... strawman argument. There was likely a few remaining columns which saw enormous loads and rapidly buckled like a pretzel and accounted for the virtual hinge rotation and translation.