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02.05: Design of concrete‐filled steel tubular longitudinal gusset plate connections
Author(s) -
Chen Ju,
Zhu Jihua,
Xu Fei,
Xue Wen
Publication year - 2017
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.83
Subject(s) - structural engineering , brace , chord (peer to peer) , failure mode and effects analysis , materials science , punching , shear (geology) , bending , tension (geology) , composite material , engineering , ultimate tensile strength , computer science , distributed computing
Experimental investigation on the concrete‐filled tubular gusset plate T–connections is presented in this paper. Three different loading conditions, including axial tension, eccentric tension and in‐plane bending, were applied to the brace of connection. The chord wall slenderness ratio ( D / t ) of the test specimens ranged from 48 to 75. Each connection was tested to failure, and the behavior under loading was recorded. Punching shear failure of the chord member was the main failure mode observed during the tests. It is recommended that the contribution of concrete be considered in the design because it could effectively restrain the deformation of the chord wall that was observed in the test. The proposed design equations predict the ultimate strengths of the concrete‐filled tubular gusset plate T–connections generally well.