Taiwan Earthquake Civil Engineering Damage
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Questions and Answers

What caused the dam failure northeast of Tai-Chung?

  • Heavy rainfall prior to the earthquake
  • Construction defects in the dam
  • Seismic waves from the earthquake (correct)
  • Strong winds post-earthquake

How much did the southern end of the dam near Tai-Chung displace upwards due to the earthquake?

  • 9 to 10 meters (30 to 33 feet) (correct)
  • 15 to 18 meters (49 to 59 feet)
  • 1 to 2 meters (3 to 6 feet)
  • 5 to 6 meters (16 to 20 feet)

Where was the Kuang Fu Elementary School located?

  • Taipei city center
  • Northwest of Taipei
  • Tai-Chung, Taiwan (correct)
  • South of Chi-chi town

What caused as much as a 3-meter (10-foot) ground displacement in some parts of the Kuang Fu Elementary School?

<p>Large fault rupture associated with the earthquake (C)</p> Signup and view all the answers

Which part of the building at Kuang Fu Elementary School remained standing despite the earthquake?

<p>Immediately adjacent to the surface fault rupture (A)</p> Signup and view all the answers

What effect did the fault rupture have on the span between columns in a building at Kuang Fu Elementary School?

<p>It reduced the span. (C)</p> Signup and view all the answers

What is resonance in the context of buildings?

<p>A condition when the period of earthquake-induced ground shaking matches the natural period of building vibration (B)</p> Signup and view all the answers

What causes damage in T-shaped buildings according to the text?

<p>Damage happens where the two segments of the T-shaped building join together (D)</p> Signup and view all the answers

What type of structure responds most to high-period ground shaking?

<p>Tall buildings (C)</p> Signup and view all the answers

What determines if resonance is expected to occur in a building?

<p>The match in period of earthquake-induced ground motion and natural period of building vibration (A)</p> Signup and view all the answers

How can a response spectrum be used in relation to earthquake ground motion?

<p>To assess the nature of the earthquake ground motion on a structure (B)</p> Signup and view all the answers

What is a rule of thumb mentioned for estimating the natural period of vibration for a building?

<p>$0.1 \times$ the number of stories in a building (C)</p> Signup and view all the answers

What caused the collapse of the 1st floor of the Community Mental Health Building at the Olive View Hospital complex?

<p>Soft/weak 1st story created by masonry walls at the 2nd floor (C)</p> Signup and view all the answers

Why did the columns at the lower levels of the main building at Olive View Hospital have large ductile capacity?

<p>Presence of spiral reinforcement (A)</p> Signup and view all the answers

What attributes did most of the buildings that collapsed in the 1995 Kobe earthquake have?

<p>Weak lateral system, non-ductile material, and irregular structural configuration (B)</p> Signup and view all the answers

Why was there a risk of fatalities at the Olive View Hospital complex after the 1971 San Fernando earthquake?

<p>Near collapse of the main building and first floor collapse of another building (D)</p> Signup and view all the answers

What is significant about the conditions that led to the collapse of buildings in the 1995 Kobe earthquake?

<p>They no longer met Japanese building code requirements (A)</p> Signup and view all the answers

What saved the lower floors of the main building at Olive View Hospital from likely collapse?

<p>Spiral reinforcement in the columns (B)</p> Signup and view all the answers

What factor was cited as a principal cause of the extensive damage experienced by the port facilities in the affected region?

<p>Liquefaction (A)</p> Signup and view all the answers

How many people were injured as a result of the earthquake?

<p>More than 5000 (C)</p> Signup and view all the answers

Which type of soil was most commonly used for the construction of liquefied fills in the affected region?

<p>Decomposed granite soil (C)</p> Signup and view all the answers

What happened to nearly all of the container loading piers at the Port of Kobe due to the earthquake?

<p>They were disrupted (D)</p> Signup and view all the answers

Where did evidence of liquefaction extend along the waterfront east and west of Kobe?

<p>Along the entire length (A)</p> Signup and view all the answers

Which two man-made islands in Kobe harbor experienced liquefaction failures due to the earthquake?

<p>Port Island and Rokko Island (D)</p> Signup and view all the answers

What may occur due to reentrant corner irregularity during an earthquake?

<p>Independent response of projecting wings (A)</p> Signup and view all the answers

What is the main concern associated with diaphragm discontinuity irregularity?

<p>Redistribution of seismic forces (A)</p> Signup and view all the answers

How does out-of-plane offset irregularity affect seismic analyses?

<p>It increases demands on vertical elements (D)</p> Signup and view all the answers

What does nonparallel system irregularity refer to?

<p>Characteristics of the vertical elements (B)</p> Signup and view all the answers

Which irregularity can result in torsional forces not normally considered in seismic design?

<p>Diaphragm discontinuity irregularity (B)</p> Signup and view all the answers

How can concentration of forces at openings' boundaries be resolved in design?

<p>By considering redistribution of forces (A)</p> Signup and view all the answers

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