9/11 and the melting metal theory

[Praxeas]

Conspiracy theories have said that it is impossible for the jet fuel that burned in the towers to cause the metal supports to become super heated enough to collapse underneath the tons of metal and concrete above it.

Recently a gas truck (not get fuel which burns hotter) turned over and cause fire. The fuel burned so hot the metal supports melted and the bridge collapsed.

If that can happen with a simply overpass why can't it happen with a building that has jet fuel burning and tons and tons and tons of weight on top of it, not to mention the other flammable materials burning away in the towers

http://www.foxnews.com/story/0,2933,269196,00.html

The elevated section of highway that carries motorists from the San Francisco-Oakland Bay Bridge to a number of freeways was destroyed early Sunday when the heat of a burning gasoline tanker truck weakened part of one overpass, crumpling it onto another.