Flexural capacity of plate girders with very slender corrugated webs

Seung Hee Lho, Chang Hwan Lee, Jin Tak Oh, Young K. Ju, Sang Dae Kim

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Corrugated web beams in industrial buildings commonly have a very slender web, which can induce a brittle vertical flange buckling. Full-scale corrugated web beams were tested, in order to verify the flexural capacity and the limit state of the vertical flange buckling of corrugated web beams with very slender webs. Flexural behavior and the effect of the residual stress were explored. All specimens failed due to vertical flange buckling after flange yielding at the mid-span of specimens. Corrugated web beams in the test had the flexural strength 6~17% larger than the flexural capacities from DASt-Ri 015. Based on the test results, a modified slenderness ratio limit, modified to 1.5 times that of the conventional value, was suggested. Numerical analysis with various parameters was performed to verify the accuracy of the modified slenderness ratio limit.

Original languageEnglish
Pages (from-to)731-744
Number of pages14
JournalInternational Journal of Steel Structures
Issue number4
Publication statusPublished - 2014 Dec


  • buckling
  • corrugated webs
  • flexural capacity
  • plate girders
  • slender webs
  • steel beams

ASJC Scopus subject areas

  • Civil and Structural Engineering


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