Bridge Load and Force Effects Definitions Quiz
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Questions and Answers

What is the primary factor that can lead to resonant excitation in a bridge due to passing vehicles?

  • Settlement of fill underneath the roadway pavement (correct)
  • Impact loads from dynamic vehicles
  • High frequency vibration of the bridge
  • Presence of pedestrian loads on the bridge
  • For which components of a bridge's foundation are impact (dynamic load allowance) not applied?

  • Foundation components exposed to wind loading
  • Retaining walls subjected to vertical reactions
  • Foundation components at or above ground level
  • Foundation components entirely below ground level (correct)
  • In bridge design, what is the significance of the fatigue loads consideration?

  • To ensure the bridge withstands horizontal forces
  • To minimize the impact of wind loading
  • To increase the live load stress range limit
  • To account for cyclic stressing and vulnerability to fatigue (correct)
  • What determines the wind pressure on both structures and vehicles when present on a bridge?

    <p>Wind speed and the presence of vehicles on the bridge</p> Signup and view all the answers

    How are water loads typically considered in the design of a bridge?

    <p>To support structures at risk of sliding or overturning</p> Signup and view all the answers

    What does the impact factor account for in the context of a bridge structure?

    <p>Dynamic effects of vehicle riding</p> Signup and view all the answers

    When should the pedestrian load be considered concurrently with vehicular loads on a bridge?

    <p>When the bridge is designed only for pedestrian traffic</p> Signup and view all the answers

    What does the term 'nominal load' refer to in bridge design?

    <p>Arbitrary selected design load level</p> Signup and view all the answers

    What is the purpose of a load factor in bridge design?

    <p>To consider variations in nominal load</p> Signup and view all the answers

    Which dynamic effect does the 'Hammering Effect' primarily address in bridge design?

    <p>Response to riding surface discontinuities</p> Signup and view all the answers

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