FAQ 004144 | How do I apply prestress to tension members?

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First Steps with RFEM

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10/16/2019

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Andreas Niemeier

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Question

How do I apply prestress to tension members?

Answer

To correctly combine the planned prestress with the other load cases, define a suitable load case and apply a "pulling" strain load to the members concerned. The pulling strain load can be, for example:

  • a negative temperature load Tc distributed uniformly over a cross‑section,
  • a negative axial strain ε,
  • a negative axial displacement Δl,
  • a positive initial prestress V, or
  • a positive final prestress V (in RFEM only).

The input by using the axial displacement is the most comprehensible input as you can directly measure the displacement at the turnbuckle of the tension member.

Keywords

Dlubal FAQ Prestress Tension member Failure Turnbuckle Unstable Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal

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  • Updated 07/10/2020

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