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Studies on
performance and failure mode of T-shaped diaphragm-through
connection under monotonic and cyclic loading
Bin Rong, Changxi Feng, Ruoyu Zhang, Shuai Liu and Guangchao You |
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Vol. 13 (2018), No. 1, 1–15
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DOI: 10.2140/jomms.2018.13.1
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Abstract |
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This paper examines the mechanical properties of T-shaped diaphragm-through connections between CFST columns and steel beams under monotonic and cyclic loading. A monotonic test and a cyclic test on two same specimens are described. The experimental setup, connection configurations, and material properties are firstly introduced, followed by a detailed account of the results and observations from tests. The failure mode and the ultimate bearing capacity are similar in the two tests, while the connection exhibits larger yield capacity and lower ductility under cyclic loading than monotonic loading. Nonlinear finite element analysis was also employed in this investigation. The predicted results are in good agreement with the experimental ones so that the reliability of finite element analysis is verified. Diaphragm-through connection and ordinary beam-column connection are simulated and compared through FEM, and failure modes of plastic hinge at beam end and column face yielding are found respectively, which indicates a significant strengthening effect of the diaphragm and the superior mechanical properties of the diaphragm-through connection. |
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Keywords
diaphragm-through connection, monotonic and cyclic tests,
mechanical property, finite element analysis, ordinary
beam-column connection, failure mode, strengthening effect
of diaphragm
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Milestones
Received: 17 March 2017
Revised: 7 July 2017
Accepted: 8 August 2017
Published: 7 April 2018
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Authors |
| Bin Rong | |
| Tianjin University Tianjin China |
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| Changxi Feng | |
| Tianjin University Tianjin China |
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| Ruoyu Zhang | |
| Tianjin University Tianjin China |
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| Shuai Liu | |
| Tianjin University Tianjin China |
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| Guangchao You | |
| Tianjin University Tianjin China |
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