Tests for fatigue behavior of welded CHS-SHS-concrete filled T-joints

Le Wei Tong, De Lei Yang, Xiao-Lin Zhao

Research output: Contribution to journalArticleResearch

4 Citations (Scopus)

Abstract

Stress concentration factors (SCF) and fatigue life are two main aspects of studying fatigue behavior of tubular joints based on hot spot stress method. 8 welded CHS-SHS concrete filled T-joints were tested under static loading to determine stress concentration factors at hot spot locations and were also tested under cyclic loading to obtain fatigue life data. The results were compared with those for T-joints made of circular hollow section to square hollow section (CHS-SHS) and no concrete filled. The test results indicated that the CHS-SHS concrete filled T-joints exhibit evident improvements in rigidity distribution and have better anti-fatigue performance than the T-joints made of CHS-SHS and no concrete filled do; S-N curves of hollow section tubular T-joints in the relevant codes are not suitable for fatigue performance analysis of CHS-SHS concrete filled T-joints.

Original languageEnglish
Pages (from-to)99-105
Number of pages7
JournalZhendong yu Chongji
Volume32
Issue number3
Publication statusPublished - 15 Feb 2013

Keywords

  • CHS-SHS concrete-filled tubular joints
  • Fatigue behaviour
  • Fatigue life
  • Fatigue test
  • Stress concentration factors

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