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Abstract
Diaphragm-through joints between rectangular concrete-filled steel tubular (CFST)
columns and steel beams have been widely used in engineering design. In order to
investigate the shear capacity of T-shaped diaphragm-through joints, three such
joints were tested under seismic cyclic loading. The test results showed that the main
contributors to the shear capacity of the joint are the core concrete and the steel
tube. However, the flanges of the steel tube have little effect on the shear capacity. In
addition, based on the principle of deformation coordination, a calculation method of
shear force-deformation skeleton curve for T-shaped diaphragm-through joints is
proposed. The theoretical predictions of the method are well fitted with the
experimental results.
Keywords
CFST column, diaphragm-through joint, shear capacity,
experimental research
Milestones
Received: 2 May 2016
Revised: 8 October 2016
Accepted: 12 October 2016
Published: 20 May 2017