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Steel Bridges Erection Methods
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Steel Bridges Erection Methods

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Questions and Answers

What is the main advantage of erecting steel bridges using a crane?

  • Needs temporary supports for crane operation
  • Suitable for bridges far from the ground
  • Requires less equipment and labor on site (correct)
  • Requires heavy lifting equipment

    • When might temporary supports (falseworks) be required during the erection of steel bridges using a crane?

  • When there is lack of heavy lifting equipment (correct)
  • When there is heavy lifting equipment available
  • When the bridge is close to the ground
  • When there is good accessibility on the site

    • What issue can arise during the erection process for a bridge with a longitudinal structural form on flexible piers?

  • Excessive stressing of the piers (correct)
  • No impact on the piers during erection
  • Reduced bending moments at the pier bases
  • Shortening of the beams during erection

    • Why are the steel beams temporarily fixed to the abutment during the erection process for a bridge constructed by crane?

    <p>To prevent dragging of any piers supporting a fixed bearing</p> Signup and view all the answers

    What factor can cause movements at the pier heads during the erection process of a bridge constructed by crane?

    <p>Variation in temperature</p> Signup and view all the answers

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