Two approximate but practical load combination rules, known as the Turkstra's rule and the peak-load-factor method, are investigated for their accuracies when used with simple load processes such as the Poisson square wave process and the filtered Poisson process. Generally, the peak-load- factor method is in better agreement with simulation results than Turkstra's rule which is always non-conservative and the errors are most prominent at low threshold levels and with intermittent loads. A practical example showing the use of the rules in the combination of live load and wind load in buildings is given. This example shows that both rules are suitable for use in the beta-reliability index method with about the same amount of computation. The peak- load-factor method is however capable of extension to the cases involving correlated loads and this could be its biggest advantage. (Author/TRRL)

Media Info

  • Features: Figures; References;
  • Pagination: p. 30.1-6

Subject/Index Terms

Filing Info

  • Accession Number: 00389674
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, TRIS, ATRI
  • Created Date: Feb 28 1985 12:00AM