lunes, 25 de agosto de 2014

physical science

  1. (LONG VERSION) Minneapolis Bridge Collapse Minnesota ...

    www.youtube.com/watch?v=C31IlOHNzbM
    Aug 2, 2007 - Uploaded by sukisuki2005
    Minneapolis Bridge Collapse Minnesota Security Tape Video long version.

15 comentarios:

  1. A portion of the Interestate-35W bridge in Minneapolis,Minnesota,collapsed in Agust 2007.Several people were killed,and many more were injured.

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  2. Eight years has past and this event is still being studied and questioned.Analazing how it failed and cocluding ways to prevent it from happening in the future.

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  3. Only a few of the vehicles were submerged, but many people were stranded on the collapsed sections of the bridge

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  4. The bridge was in the midst of being repaired when it collapsed. Repairs, which closed at least two of the eight lanes, involved guardrail replacement on the joints and concrete work.

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  5. The failure of this 8-lane, 581-m long interstate bridge came as a surprise to everyone. In this failure a several people died and a several survived. The people who did the bridge had to realized that they have to do a better hypothesis because this could happen in every bridge.

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  6. There were many people injured in the bridge collapse, the people who made the bridge coudve done better

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  7. After watching the video, it only raised more questions. Did the bridge collapse out of nowhere or had it shown any weakness and safety issues before? I also believe that if it was being repaired, it would've just been better to close off the bridge and inspect it.

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  8. At the time of the collapse there was closed lines, in my opinion that means that the bridge wasnt completely safe. If the bridge have 2-4 lines of 8 closed something is happening with it. Close the bridge could have been a good choice,but they didnt do it. I think this event help the ones that design bridges be more careful for an event like this doesnt occur again.

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  9. The original bridge was built in 1967 so it was older about 40 years they thought it would have 10 more, The bridge was close to failing inspections I think the year before when they inspected it they had noticed an excessive amount of corrosion on the supports

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  10. After all this years people still wonder how a bridge collapsed out of no where. Scientists are still investigating how it happened and what caused it.

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  11. In my opinion the bridge wasn't safe enough, the one who build it need to be more careful the next time to prevent this.

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  12. The scientist said that the bridge failed because the gusset plates were not created properly and that the bridge was overloaded.In mine opinion that hypothesis is correct because I read about the bridge that was 20% more overloaded that should be and that the gusset plates were not made correctly.,

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    Respuestas
    1. In my opinion the bridge wasn't the completely safe for the weight it had to support at the moment of the collapse!��

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  13. Looking at this I can conclude that the person or company who built the bridge didn't follow the correct procedures or make the tests that comply with appropriate specifications while constructing it. That is why we have to follow the procedures step by step and make repeatedly tests to make sure that the construction is safe. By doing this we avoid tragedies
    like this one.


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  14. In my opinion the bridge collapsed because the bridge was not properly constructed. The gusset plates that came together to support the structures were designed to be stronger than the structural parts they connected. Also, the gusset plates were undersized.

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