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Start Over Author "Liu, Jingchen" Publisher elsevier bv
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7. Experimental investigation of special-shaped concrete-filled steel tubular column to steel beam connections under cyclic loading

Author

Liu Jingchen, Xuhong Zhou, Jiepeng Liu, and Yuanlong Yang

Subjects
Engineering, business.industry, Stiffness, 020101 civil engineering, Diaphragm (mechanical device), 02 engineering and technology, Structural engineering, Finite element method, 0201 civil engineering, Mechanism (engineering), 020303 mechanical engineering & transports, 0203 mechanical engineering, Column (typography), medicine, Composite material, medicine.symptom, business, Failure mode and effects analysis, Joint (geology), Beam (structure), Civil and Structural Engineering
Abstract

This paper presents experimental investigation and numerical investigation on seismic behavior of special-shaped concrete-filled steel tubular (CFST) column to steel beam joints. Exterior diaphragm and vertical rib are respectively introduced as joint stiffeners. A pseudo static experiment was conducted to investigate load transmission mechanism, failure mode and seismic performance index based on load-deformation curves and strain curves. The seismic behavior of the two kinds of joints were compared and evaluated. The classification of the joints by stiffness is conducted according to Eurocode. Inter-story drift of the specimens was calculated with data from laboratory apparatus and verified with test results. A design formula of joint shear resistance based on internal load transmission was proposed for engineering application. A finite element model of special-shaped CFST to steel beam connections was established as a supplement to analyze load transmission mechanism.

Published
2017
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