Podcast
Questions and Answers
What is the primary factor that can lead to resonant excitation in a bridge due to passing vehicles?
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?
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?
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?
What determines the wind pressure on both structures and vehicles when present on a bridge?
How are water loads typically considered in the design of a bridge?
How are water loads typically considered in the design of a bridge?
What does the impact factor account for in the context of a bridge structure?
What does the impact factor account for in the context of a bridge structure?
When should the pedestrian load be considered concurrently with vehicular loads on a bridge?
When should the pedestrian load be considered concurrently with vehicular loads on a bridge?
What does the term 'nominal load' refer to in bridge design?
What does the term 'nominal load' refer to in bridge design?
What is the purpose of a load factor in bridge design?
What is the purpose of a load factor in bridge design?
Which dynamic effect does the 'Hammering Effect' primarily address in bridge design?
Which dynamic effect does the 'Hammering Effect' primarily address in bridge design?
