Quote:
Originally Posted by chachi
All of the information you posted in this post is what LED to the collapse... not the ACTUAL collapse mechanism or timing involved in the collapse... correct?
The bridge was fatigued and eventually a critical member gave, overloading the other members and causing a global collapse. This took at least 4 seconds per the video and MSM news.
If this is the case you have not answered to anything I have posted.
"A bridge with essentially TWO supports takes 4 seconds to fail because ONE truss was lost and progressed to the others... Progressive collapse, far less supports, smaller safety factor due to age. Why the delay? Why not instant failure like the THREE WTC towers? Why not ignore the intact resistance like in the WTC?
WTC towers avg. 10 seconds to collapse (NIST) because of (officially) a truss failed overloading other trusses and causing them to fail, the causing all the columns to fail even in 70 untouched floors and causing global collapse in < 11 seconds in both cases.
IDK... seems like the bridge should have collapsed in < 1 second per. 9/11 gravity magic."
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This is such BS.
Any structural engineer worth his salt knows that the tensile strength of steel is equal to 4 rem parts per mm of suspended weight.
In a bridge truss the strength of the bearing load is 4x= to the azimuth of the diagonal flow (23y to the 3rd power). So that means in order for a bridge with two trusses to collapse in 4 seconds the vertical sheer would have to be greater than 5x times the horizontal bearing load. Since it has been proven that high tensile strength steel can only withstand a breaking weight of 9 times its maximum progression load, that means the force of strength to cause the bridge to collapse as fast as it did would be = to the square root of 4 times the 1/3 quantity of the power ratio. Schulstein's 3rd law of engineering dynamics states that this is absolutely impossible and that a collapse of a < 4 magnitude has to have a significantly greater accelerate force ratio behind its negative impact vectors.
So scientifically your theory that his is some "accident" is so full of crap its unbelievable and only a significant outside force, like explosives, could cause a bridge to fails as quickly as this one did.