Footbridge model for 1 beam 1 span Free

A model analysis for a single span footbridge comprising a single main beam supported on pinned or rotational springs using stiffness matrices based on 3 degrees of freedom at each joint – vertical deflection and 2 rotations. Loading is by joint forces or moments in 2 directions. Optional support conditions allow integral bridge decks to be analysed. A separate differential settlement analysis is included for integral bridges.

Contents (23 pages)

  • General arrangement allowing definition of geometry
  • input data for beam and support properties
  • loading input and results summary for key shear, moment and displacement results
  • matrix parameters and full set of results
  • differential settlement analysis
  • validation using moment distribution analysis
  • The lowest natural frequency has is calculated using inverse vector iteration.
Free

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