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![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Apr 2008 19:55:46 IST
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why the bridges r diclear unsafe after long use ?
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1 Apr 2008 20:06:51 IST
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because they are made in India 
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"I a universe of atoms.......an atom in the universe" |
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1 Apr 2008 20:17:15 IST
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correction in the above statement.............
it is not because because of india
but the govt. of india
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1 Apr 2008 20:18:43 IST
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IN long use they subjected ulternative strains or stresses
so the lose there elastic stranght.
may be i m correct!
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1 Apr 2008 20:47:43 IST
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No it is due to forced oscillations caused due to resonance
caused by matchin of vehicles's frequencies with fundamental frequency of bridge
and over many years bridge grows weak! @guy below me... most wearing of bridge takes place due to forced oscillations by resonance only!
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- Gaurav Ragtah (spideyunlimited)
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1 Apr 2008 20:55:22 IST
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Rusting, wear & tear and metal fatigue
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1 Apr 2008 21:30:01 IST
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me1st is right .............
it is because after years the bridge's strain wud
increase which will lead to a situation in which the bridge breaks
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1 Apr 2008 21:42:33 IST
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the rusting of the maetals involved is the main reason....
the stress factor is also thr!!!
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Manasi....
NIT-Allahabad...
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The World out thr is waiting for U !!
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1 Apr 2008 22:25:21 IST
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bridges r diclear unsafe after long use because they loose their elasticity after repeated stress and strain by the vehicles going over the bridges.
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THINK BIG!
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1 Apr 2008 22:27:14 IST
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i think spidey has given more significant ans
it may be due to resonance..
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