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Which of these is NOT a consequence of designing a web to work in diagonal tension?

  • A.Web weight is saved compared with a non-buckling design
  • B.The web itself must be made thicker
  • C.The uprights carry additional compression
  • D.The flanges are pulled inward

Answer: B

Correct answer: The web itself must be made thicker

The reverse is the point: designing for diagonal tension allows a thinner web, since it need not be prevented from buckling, and that is where the weight saving comes from. What must be strengthened is everything around it - the uprights now carry compression from the tension bands, and the flanges are pulled inward and carry additional bending. The saving is real but smaller than the web thickness alone would suggest.

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