Concerns over the suitability of some of the structural criteria
contained in the SNAME T & R Bulletin 5-5A - LRFD  and 5-5B -
WSD  were raised in a report to the HSE by P A F A Consulting
Engineers (PAFA). This report has now been published in the HSE's
OTO Series as OTO 2001 001 . These concerns arose in connection
with: environmental load factors in the LRFD code; associating
welding residual stresses with slenderness values; formulations for
prismatic and hybrid sections; the application to jack-up assessment
of the ISO tubular member
strength formulations proposed for fixed steel structures; and estimating split-tubular chord sections on standard tubular member criteria.
Some of these research reports are very large, for information about expected download times please see our FAQs pages.