EQ - GROUP 3
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Questions and Answers

What is one of the solutions on the challenge of engineers on building foundations on unstable soils?

  • Soil stabilization techniques (correct)
  • Steel-reinforced structures
  • Reducing the size of the foundation to minimize contact with the soil
  • Ignoring soil conditions and proceeding with standard foundations

What is a common effect of surface rupture caused by earthquakes?

  • Decrease in soil permeability
  • Formation of deep cracks and gaps (correct)
  • Reduction in seismic wave amplitude
  • Stabilization of underground utilities

What type of ground movement often leads to building tilting and subsidence?

  • Differential ground settlements (correct)
  • Amplification of seismic waves
  • Surface uplift
  • Fault reactivation

Which type of column is most commonly used in residential and commercial buildings?

<p>Reinforced Concrete (RC) column (B)</p> Signup and view all the answers

What is the main advantage of using steel columns in construction?

<p>High strength-to-weight ratio (B)</p> Signup and view all the answers

Which of the following is an example of a composite column?

<p>A steel tube filled with concrete (B)</p> Signup and view all the answers

What is a common damage pattern in walls if boundary elements are not properly designed and detailed?

<p>Circular cracks around reinforcement bars (D)</p> Signup and view all the answers

What is a possible cause of cracks at construction joints in walls?

<p>Poor detailing of the construction joint and insufficient vertical web reinforcement (B)</p> Signup and view all the answers

Why does flexural damage in walls rarely occur?

<p>Older multi-storey buildings are typically under-designed in flexure (C)</p> Signup and view all the answers

What structural deficiency can cause a soft-story collapse?

<p>Inadequate storey shear strength (A)</p> Signup and view all the answers

What is the main issue with slender steel sections in metal buildings?

<p>They are more prone to buckling and lack lateral support (B)</p> Signup and view all the answers

Why do failures in non-load-bearing walls generally not compromise the overall structural integrity of a masonry building?

<p>They are non-structural components and do not support significant loads (C)</p> Signup and view all the answers

What is one major cause of beam-to-column joint failure during earthquakes?

<p>Excessive slab reinforcement increasing negative moment capacity (A)</p> Signup and view all the answers

What causes torsional effects on buildings during an earthquake, leading to increased shear on exterior columns of the frame?

<p>Eccentricity between the center of mass (CM) and center of rigidity (CR), causing rotation of floors. (B)</p> Signup and view all the answers

These are services that are crucial to the functioning of regions and the health and safety of communities.

<p>Lifelines (B)</p> Signup and view all the answers

Liquefaction occurs when soil loses strength due to excessive pore water pressure during an earthquake. What is a common consequence of this phenomenon?

<p>Buildings and structures tilting or sinking (B)</p> Signup and view all the answers

Which of the following is a primary cause of earthquake-induced landslides?

<p>Loss of soil shear strength (B)</p> Signup and view all the answers

What factor causes tsunami waves to increase in height as they approach land?

<p>Decrease in water depth (C)</p> Signup and view all the answers

What is the primary cause of flexural cracking in the beam span during an earthquake?

<p>Preexisting cracks due to gravity loads that widen under vertical seismic forces (B)</p> Signup and view all the answers

Which type of beam cracking is most likely to be caused by inadequate shear reinforcement?

<p>Shear cracking (C)</p> Signup and view all the answers

Flashcards

Capital of France (example flashcard)

Paris

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