Twin Towers Demolition - 911 inside job evidence
Twin Tower Deception and Demolition begins to expose with forensic evidence the deception surrounding the design and construction of the Twin Towers. The towers did not have 47 steel core columns in the core. The core was a steel reinforced cast concrete tube. The producers information comes from a missing video documentary produced by PBS in 1987 and broadcast on cable in 1990 called "The Engineering and Construction of the Twin Towers. It provides the only logical explanations in existence which are realistic, feasible and credible for; free fall, total pulverization, superfine heated concrete particulate, smooth, square cut column ends and the heaving of heavy steel assemblies for hundreds of feet; that are on the web. In 2 parts it has a total length of about 16 minutes. Produced by Christopher A. Brown in July of 2,007
This photograph (copied from Studyof911.com) is explained on Understanding The Silhouetted Images Of The Twin Towers.
The towers had a strong core structure and perimeter columns all around the outside. The 47 core columns held up approximately 60% of the vertical load, and the 244 perimeter columns distributed the remaining 40% across the four walls, 10% per wall. (See Why Trade Center Towers Stood, Then Fell, November 11, 2001, which gives the official conspiracy theory, along with some useful info.)
| Some people still try to make the incorrect case that there was only a relatively weak hollow core structure, or that it had concrete columns, or none at all. Here is a diagram showing what they wanted us to believe about the structure:|
All the elevator shafts were integrated with the core columns. Local elevators did not extend the entire height of the towers.
| Actual construction photos make the real structure clear. Notice the extensive horizontal and diagonal cross bracing, particularly on the corner columns of the core.|
Actual floor plans were withheld from the public for more than five years, and finally leaked by a whistleblower. (see Tower Blueprints - Surviving Evidence of the World Trade Center Attack )
The floor plans exposed the misrepresentation by FEMA and NIST of the true structure, which helped them support their theory of how a gravity-driven collapse occurred.
|The towers were designed, by standard building practice, so that the columns at each floor could resist the weight of 5 times the number of floors above it. This means each tower could have been 5 times taller before being on the verge of collapsing under its own weight.|
In order for the lower floors to hold up all the upper floors, the columns in lower floors must be much stronger and heavier than those above. In fact, the core columns on the bottom were 10 times more massive compared to those near the top. So the rectangular-shaped towers were actually built more like pyramids internally, as suggested by this perspective image.