Summary Draft 2
In the web article “I-5
and the Physics of Bridge Collapses”, Hartsfield (2013) claimed that the
concept behind a functional bridge design is what leads to its failure as well.
The article examined the various types of bridges and found that the different
types of bridges have weaknesses specific to themselves.
One such example stated
by the article is that truss bridges, which use geometric shapes as a basis for
its strength and stability. As such, it is claimed by the article that
deformations on the shape will cause the bridge to fail.
Suspension bridges fail
due to its inability to withstand huge external forces. The article observed
that “when an external force causes the bridge to vibrate at its resonant
frequency, it causes the vibration to grow stronger and stronger”.
Another example of such
phenomenon are cantilever bridges. The article alleged that cantilever bridges
are designed to be able to withstand the torque that the lever arm takes, yet
failures are found to be due to construction oversight and overestimation of
the torque it can take.
Hartsfield, T. (2013,
May 28). I-5 and the physics of bridge collapse. RealClear Science. Retrieved
from https://www.realclearscience.com/articles/2013/05/29/i-5_and_the_physics_of_bridge_collapses_106544.html
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