triforcharity
Banned
- Joined
- Jun 23, 2009
- Messages
- 13,961
Why would I read an article by a grad student who believes in supernatural quantities of kinetic energy somehow generated by gravity alone? Secondly, why would I pay to read it? Why would I care what he has to say about "energy absorbing devices" for structures that don't collapse from fire?? He won't be talking about global collapses because global collapses in steel-framed highrises DO NOT OCCUR FROM FIRE ALONE. Okay?
If you want to read the article, you go right ahead.
And by grad student, you actually mean Professor, right?
BTW, here is the abstract.
"The World Trade Center collapse has brought attention to progressive collapse of tall buildings and the study of possible countermeasures. From the viewpoint of energy transfer, this analysis explains why the collapse could not stop by itself once began. By introducing a design parameter called collapse stability index that controls design against progressive collapse, it is found that conventional design of a tall building usually leads to an inherently unstable structure in the event of a progressive collapse. In a subsequent feasibility study in this paper, a heavy-duty metal-based honeycomb energy absorbing structure is proposed. Using a finite element analysis, it is demonstrated that the structure is capable of absorbing potential energy released in a tall building collapse. The added energy absorbing devices will only occupy a small percentage of the total floor space. By properly designing and installing such devices, a progressive collapse, should it happen in a tall building, may be arrested within a few floors, and hence, the building is inherently stable to the progressive collapse. The theory is also elaborated with the example of the World Trade Center collapse."
From here.
http://cedb.asce.org/cgi/WWWdisplay.cgi?143632
Yeah, he gets his stuff published in RESPECTABLE journals. You dolts make your own journal. Hey, it's cool. Put your money where your mouth is. Purchase the article, read it, and come back here nd explain why he would be researching something like this, if it can't happen.
We'll wait.....