Interactive Sample Project: Pedestrian Bridge

Step 7: Design Analysis: Determine Required Section Modulus

Valuable Information
Mmax = 10200 lb · in
σfail =  ksi
Factor of Safety = 1.2

  • Now use the flexure formula to determine Sreq.


  • Then the Section Modulus, S, will need to be compared versus Sreq.

  • Determine the correct value for Sreq.

< < Back to Step 6: Design Analysis: Determine Stress Formula Continue to Step 8: Beam Section Selection >>
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This material is based upon work supported by the National Science Foundation under Grant No. 0633602. Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).

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