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Indians successfully stress-test bridge

  1. #21
    Originally posted by Speedy Parker No not even in high rises. Don't argue with me I used to inspect fire safety systems. The only electric used in some systems is a 12 volt signal similar to land line telephone. Those systems have electric detectors and electric solenoids are used to open a valve to allow water to flow into the sprinkler piping network.

    The 12 volt DC required for that is supplied by the same diesel generators used to supply powered for pumps that are required for proper pressure to upper floors in extremely tall buildings.

    But the majority of sprinkler systems are just a simple glass ampul which breaks and releases water when heated.

    You are a know nothing dumbass.



    ignoring all the grandmatical [sic] mistakes, your actually saying these sprinkler systems use electricities.

    yes ?
  2. #22
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    Originally posted by vindicktive vinny

    ignoring all the grandmatical [sic] mistakes, your actually saying these sprinkler systems use electricities.

    yes ?

    No
  3. #23
    Originally posted by troon that comes from the ground floor up, but regardless there's still be water in the pipes. it's not like it's going to evaporate into thin air.

    what comes from the ground floor up.
  4. #24
    Originally posted by Speedy Parker No

  5. #25
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    Sprinkler systems do not require AC power
  6. #26
    troon African Astronaut
    Originally posted by vindicktive vinny what comes from the ground floor up.

    electricity. and water for that matter, unless it's rainwater. that comes from the roof down. as did the roof itself.
  7. #27
    Originally posted by Speedy Parker Sprinkler systems do not require AC power

    u saying DCs arent electricity ?
  8. #28
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    SLI
    CCRN
    MTDR
    PFB
  9. #29
    slide22 African Astronaut
    Originally posted by Meikai man, structural failures happen all over the world. nothing too weird about that. but uhh… guys, if they aren't on shore within like 10 minutes of falling without a PFD into waters that [seemingly] calm, they either got pinned to the riverbed by debris and drowned or didn't know how to swim and drowned. corpse recovery is what's being impeded by the lack of electricity, not "rescue".

    I think it was in 1986 that the 50th Anniversary of the Golden Gate Bridge occurred and something like a million people got to walk onto the bridge when it was closed for the day to celebrate. the fucking bridge had flattened out its design road arch.

    I think they did the same thing for the 75th anniversary too but I wouldn't suggest doing it on it's 100th.

    also, some people were jumping up and down. whats that scientific term called where soldiers have to stop marching because the vibrations can collapse the bridge?

    this bridge had to many people on it all at once. they should have had a limit to how many crossed. probably nothing wrong with the design just over its expected capacity
  10. #30
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    oscillation

  11. #31
    troon African Astronaut
    Originally posted by Speedy Parker oscillation


    resonance

  12. #32
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    Originally posted by troon resonance


    Wrong
  13. #33
    slide22 African Astronaut
    Originally posted by Speedy Parker oscillation


    WRONGED


    Originally posted by troon resonance


    ^ Exactly
  14. #34
    slide22 African Astronaut
    Originally posted by Speedy Parker Wrong

    NoU

    two different wave forms
  15. #35
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    Originally posted by slide22 WRONGED




    ^ Exactly

    Wrong
  16. #36
    troon African Astronaut
    Originally posted by Speedy Parker Wrong

    oscillations aren't inherently problematic. it's resonance that causes the amplitude to grow to dangerous levels.
  17. #37
    slide22 African Astronaut
    Originally posted by Speedy Parker Wrong

    Oscillating is a cycle wave and resonance is vibration. resonance can turn nuts from bolts, pop rivets out and bust welds.
  18. #38
    Speedy Parker Black Hole [my absentmindedly lachrymatory gazania]
    Originally posted by troon oscillations aren't inherently problematic. it's resonance that causes the amplitude to grow to dangerous levels.

    No resonance without oscillation in regard to bridge collapse.
  19. #39
    slide22 African Astronaut
    Originally posted by Speedy Parker No resonance without oscillation in regard to bridge collapse.

    true but the resonance is the main cause not the prior.
  20. #40
    troon African Astronaut
    Originally posted by Speedy Parker No resonance without oscillation in regard to bridge collapse.

    no oscillation without bridge in regard to bridge collapse, but you wouldn't argue that the bridge was the cause.

    you know you're wrong
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