Why Do Parking Garages Often Fail and Fall During an Earthquake

question 11

Multiple Choice

Why do parking garages often fail and fall during an earthquake?

• A) Garages fall due to a lack of steel reinforcing bars.
• B) Garages are made of poor quality concrete.
• C) Horizontal spans across the large openings are too long to support the weight of vehicles.
• D) Horizontal support beams shake off their vertical columns because they are often not well braced.
• E) The vertical concrete supports are too thin to support the load.

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