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|Title:||Static strength of thick-walled CHS X-joints subjected to brace moment loadings|
|Authors:||Qian, X.D. |
Finite element method
|Citation:||Qian, X.D., Choo, Y.S., Liew, J.Y.R., Wardenier, J. (2007). Static strength of thick-walled CHS X-joints subjected to brace moment loadings. Journal of Structural Engineering 133 (9) : 1278-1287. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:9(1278)|
|Abstract:||This paper presents results from a systematic finite-element (FE) study on the static strength of moment loaded thick-walled circular hollow section (CHS) X-joints, and compares the results with CIDECT and ISO/CD 13819-2 recommendations. For thick-walled joints subjected to brace out-of-plane bending, the CIDECT formulation excludes the γ dependency in the joint strength, which is different from the ISO equation and the present FE observations. The current study compares the different load paths mobilized in the X-joint under various brace loading conditions, through a detailed three-dimensional finite-element study. The numerical results reveal the significance of the joint geometric parameters and the tensile chord stress effect on the ultimate joint strength. Based on the present detailed study, a new chord stress function which incorporates the geometric dependency and the tensile chord stress effect is proposed. © 2007 ASCE.|
|Source Title:||Journal of Structural Engineering|
|Appears in Collections:||Staff Publications|
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