How do I apply a prestress to tension members?


Define a suitable load case to correctly combine the planned prestress with the other load cases and apply a "pulling" strain load to the affected members. A pulling strain load can be, for example:

  • a negative temperature load Tc distributed uniformly via the cross-section,
  • a negative axial strain ε,
  • a negative axial displacement Δl,
  • a positive initial prestress V or
  • its positive final prestress V only in RFEM.

Input via an axial displacement is the most comprehensible input because you can directly measure the offset on the turnbuckle of a tension member.


Prestress Tension member Failure Turnbuckle Unstable


Contact us

Contact to Dlubal

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

+49 9673 9203 0

RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD