Truss Bridges: Concepts and Terminology

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RoomyPraseodymium
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15 Questions

What type of forces do the top and bottom members of a truss sustain?

Compression and tension

What type of forces can a truss member be subjected to?

All of the above

What is the function of chord members in a truss bridge?

Resist forces caused by bending

What is the primary function of stringers in a truss bridge?

Longitudinal beams supporting the deck and transferring its load to beams

What is the role of the floor beams in a truss bridge?

Transfer the loads from stringers to trusses

Truss members may only be subjected to axial forces and not bending or shear forces

False

I-shaped beams and trusses are not good options to better handle the forces in a truss bridge

False

Chord members in a truss bridge resist forces caused by bending

True

Floor beams in a truss bridge are parallel to the traffic direction

False

The deck in a truss bridge does not carry the loads directly

False

Truss structures are less efficient in exploiting the strengths of materials compared to beams because they only resist axial forces in members.

False

The very top and bottom of a truss beam sustain bending forces, while diagonal members sustain shear forces.

False

Chord bracing is responsible for ensuring truss stability and resisting wind loads in a truss bridge.

True

Stringers in a truss bridge are transverse to the traffic direction.

False

I-shaped beams and trusses are not good options to better handle the forces in a truss bridge.

False

Study Notes

Truss Bridge Forces

  • Top and bottom members of a truss sustain axial forces
  • Truss members are subjected to axial forces only, not bending or shear forces

Truss Bridge Members

  • Chord members resist forces caused by bending
  • Stringers are transverse to the traffic direction
  • Floor beams are parallel to the traffic direction

Truss Bridge Functionality

  • The primary function of stringers is to support the deck
  • The deck does not carry the loads directly

Truss Bridge Structure

  • Truss structures are less efficient in exploiting the strengths of materials compared to beams
  • Chord bracing ensures truss stability and resists wind loads

Learn about the concepts and terminology related to truss bridges, including the structure of members, forces acting on truss members, and material requirements for top and bottom members. This lecture covers the basic principles of truss bridges.

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