jaydeehess
Penultimate Amazing
Concerning WTC 7 and my (and many other's) marathon with Christopher 7
I incorporated 1337's thoughts.
http://72.32.2.238/forumlive/showpost.php?p=3483978&postcount=4374
there is the bald fact that each of the collapsed buildings also suffered physical damage before the fires began. In fact WTC 7 was evacuated several hours before it actually collapsed partially because of the concern that it was going to. Concern about the stability of the structure was raised shortly after the collapse of WTC 1. Then the fires went to work on the structure.
Chris's point of contention is mainly that the collapse would not have proceeded exactly as NIST sets out in the preliminary report. It may very well not have and THAT is precisley the reason they stated that more research needed to be done.
Chris also claims definitatively that fire could not reduce the strength of the large columns enough to cause them to fail yet in that completely ignores or minimizes the effect that the debris damage to the structure would have had. In all previous fires, in buildings that start out intact, the load on heated members would be just as designed. That simply cannot be said to have been the case in any of the WTC structures.
Chris states that certain things have never occured before and when shown them to have he ups the ante to include new parameters. The end result of such an arguement would be to state that no identical building to WTC 7 has ever collapsed due to fire. This means that the contention, "this has never happened before" is warrented by the criteria that an identical building to WTC 7 has never collapsed before so WTC 7 could not have collapsed. That is the definition of circular reasoning.
<<snip>>
We do not have an identical building to WTC 7 to compare to. We do however have the Windsor and the towers that we can take certain lessons from as well as the many examples of other steel structures that have suffered complete collapse even with no prior physical damage, such as the Kader Toy factory.
Has it never happened before? Not exactly as occured in Manhattan on Sept 11/01, but other incidents point to a confluence of insults to the structures involved being able to cause it to happen. The frank fact of these cases is that the events that caused the collapses of 3 of the WTC structures have never come together before. What is also shown is that other WTC structures that suffered similar or worse debris damage and or similar fires did not collapse but were so badly damaged that they had to be pulled down. That they were considered too dangerous to even enter to place explosives in them. They were, basically in danger of collapsing spontaneously many days/weeks after Sept. 11/01. This is also true of the Windsor despite its robust concrete core columns.
I incorporated 1337's thoughts.
http://72.32.2.238/forumlive/showpost.php?p=3483978&postcount=4374
there is the bald fact that each of the collapsed buildings also suffered physical damage before the fires began. In fact WTC 7 was evacuated several hours before it actually collapsed partially because of the concern that it was going to. Concern about the stability of the structure was raised shortly after the collapse of WTC 1. Then the fires went to work on the structure.
Chris's point of contention is mainly that the collapse would not have proceeded exactly as NIST sets out in the preliminary report. It may very well not have and THAT is precisley the reason they stated that more research needed to be done.
Chris also claims definitatively that fire could not reduce the strength of the large columns enough to cause them to fail yet in that completely ignores or minimizes the effect that the debris damage to the structure would have had. In all previous fires, in buildings that start out intact, the load on heated members would be just as designed. That simply cannot be said to have been the case in any of the WTC structures.
Chris states that certain things have never occured before and when shown them to have he ups the ante to include new parameters. The end result of such an arguement would be to state that no identical building to WTC 7 has ever collapsed due to fire. This means that the contention, "this has never happened before" is warrented by the criteria that an identical building to WTC 7 has never collapsed before so WTC 7 could not have collapsed. That is the definition of circular reasoning.
<<snip>>
We do not have an identical building to WTC 7 to compare to. We do however have the Windsor and the towers that we can take certain lessons from as well as the many examples of other steel structures that have suffered complete collapse even with no prior physical damage, such as the Kader Toy factory.
Has it never happened before? Not exactly as occured in Manhattan on Sept 11/01, but other incidents point to a confluence of insults to the structures involved being able to cause it to happen. The frank fact of these cases is that the events that caused the collapses of 3 of the WTC structures have never come together before. What is also shown is that other WTC structures that suffered similar or worse debris damage and or similar fires did not collapse but were so badly damaged that they had to be pulled down. That they were considered too dangerous to even enter to place explosives in them. They were, basically in danger of collapsing spontaneously many days/weeks after Sept. 11/01. This is also true of the Windsor despite its robust concrete core columns.