Static behavior of planar intersecting CFST connection in diagrid structure

Li, L, Zhao, X and , K 2011, 'Static behavior of planar intersecting CFST connection in diagrid structure', Frontiers of Architecture and Civil Engineering in China, vol. 5, no. 3, pp. 355-365.


Document type: Journal Article
Collection: Journal Articles

Title Static behavior of planar intersecting CFST connection in diagrid structure
Author(s) Li, L
Zhao, X
, K
Year 2011
Journal name Frontiers of Architecture and Civil Engineering in China
Volume number 5
Issue number 3
Start page 355
End page 365
Total pages 11
Publisher Gaodeng Jiaoyu Chubanshe
Abstract Intersecting connection plays an important role in the new diagrid structural system for high-rise buildings. To investigate the static behavior of the intersecting connection of concrete-filled steel tubular (CFST) columns, a typical reduced-scale planner connection specimen is tested under monotonic axial compression. The failure modes, force mechanism and bearing capacity of intersecting CFST connections are analyzed further in the follow-up numerical simulation, considering influences of intersecting angle, elliptical plate and ring plate. Test and simulation results prove that, intersecting connection can develop fully plastic deformation and provide sufficient bearing capacity. Parametric analysis indicates that bearing capacity of planar intersecting CFST connection mainly depends on intersecting angle and thickness of elliptical plate, while the ring plate affects that little. Capacity estimation method for planar intersecting CFST connection is proposed basing on the capacity of the critical section which is located near intersecting center for a distance of steel tube radius, and the design suggestions is provided in the end of this paper.
Subject Structural Engineering
Keyword(s) concrete-filled steel tube
diagrid structure
experimental research
mechanism analysis
planar intersecting connection
DOI - identifier 10.1007/s11709-011-0125-7
Copyright notice © Higher Education Press and Springer-Verlag Berlin Heidelberg 2011
ISSN 1673-7407
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