ISP-203B Exam II Questions And Answers
What is resonance? What controls it? How does it affect buildings? Buildings have a
characteristic frequency* (correlated with height) at which they vibrate. If the ground response
and the building frequency are the same, the shaking can be more violent a...
What is resonance? What controls it? How does it affect buildings? Buildings have a
characteristic frequency* (correlated with height) at which they vibrate. If the ground response
and the building frequency are the same, the shaking can be more violent and structures can
collapse
What are the results and implications of liquefaction? What does water do to cause liquefaction?
o Ground behaving as a fluid when shock waves pass through
o Under what conditions does it occur?
*Usually in water saturated in sand or clay
What should urban planners do to reduce earthquake losses? Prepare for the maximum
likely size hazard in the lifespan of the structure- otherwise you may spend too much money.
Structures are generally weaker to horizontal shaking (special problem for Love waves).
What kind of reinforcements would help with weaker structures? What kind of buildings are
more earthquakes resistant? How do you make bridges, etc. more earthquake resistant?
Use of reinforcement rods to strengthen concrete showed failings in Kobe and Loma
Prieta. The rods spreading upon damage to concrete.
, ISP-203B Exam II Questions And Answers
How can you prevent fires in present-day metropolitan areas/reduce their occurrence?
Flexible connections should be provided at connection of piping to equipment, seismic
joints and other critical locations.
Earthquakes are due to brittle rupture on... faults
What is the elastic rebound theory? o "Fence"
o The earth bends, earthquake creates sharp, clean break along fault line, and then they go back
to original shape, but both sides have moved some
o Deform during earthquake stress
o Goes back to original shape
What are types of faults? Strike-slip, normal, reverse, thrust.
Reverse and thrust (which represent compression or shortening) (reverse because they move
against gravity), normal (which represent tension, lengthening, or extension) (normal because
they move as expected under gravity), and strike-slip (slide-past, shear).
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