Calibration of safety factors for prestressed stayed steel columns

Peter Hyman, Srinivas Sriramula* (Corresponding Author), Adelaja I. Osofero

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Previous studies have investigated the behaviour of prestressed stayed steel columns with a view to developing design guidelines. As most of the modern standards move towards calibrated safety factors, there is a need to explore the design expectations of these structures from a probabilistic perspective. This has not been studied in the literature till now, perhaps due to lack of clarity on underlying uncertainties, failure models and reliability levels. In this paper, the relevant reliability levels were studied to highlight the critical modes for such
structures. A sensitivity analysis was performed on the random variables to investigate their impact on the model output. The reliability levels found through appropriate analysis were then compared with target reliabilities to calibrate partial safety factors to be used in the design of these structures. A range of safety factor values were found depending on the conditions adopted in the calibration and target reliability studies.
Original languageEnglish
Pages (from-to)365-380
Number of pages16
JournalArchitecture, Structures and Construction
Early online date23 Aug 2022
Publication statusPublished - 1 Nov 2022

Bibliographical note

Open Access via the Springer Compact Agreement
This work was supported by the Engineering and Physical Science Research Council
(EPSRC) UK Doctoral Training Partnership (grant number 1962441).


  • Prestressed stayed columns
  • partial safety factors
  • code calibration
  • reliability
  • failure modes


Dive into the research topics of 'Calibration of safety factors for prestressed stayed steel columns'. Together they form a unique fingerprint.

Cite this