Development of Connections to Concrete-Filled Rectangular Tubular Columns

Chen, Zhihua; Qin, Ying; Wang, Xiaodun

doi:10.18057/ijasc.2015.11.4.1

Cited by 8 publications

(11 citation statements)

References 32 publications

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“…Damage assessment [29], computationally performance simulation [30], and design approach investigation [31] represent other areas of interest. Several state-of-the-art reports and papers also presented a large number of research results on CFRT column-to-H-beam connections [32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Seismic Behavior of Through-Diaphragm Connections Between CFRT Columns and Steel Beams-Experimental Study

Qin¹,

Chen

Wang³

et al. 2014

Volume 10 Number 3

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This paper is an extension study to an experimental program involving one traditional and three novel through-diaphragm connections between concrete-filled rectangular tubular columns and steel H-beams. The proposed connection types utilize tapered diaphragm or triangular plates at the end of the beam to improve the seismic performance of traditional through-diaphragm connections. Based on the experimental results, the lateral force versus beam-column deformation response was assessed and the shear force versus shear distortion relationship in the panel zone was evaluated. It was observed that the improvement in connection details significantly enhanced the rotation capacity and shear stiffness. The deformation of the connections was also analyzed in terms of the contribution of the column, the beam, and the joint. In addition, the force transfer mechanism in the connections was investigated by analysis of the strain distribution The test results indicate that the proposed through-diaphragm connections are able to alleviate the stress concentration in the load transfer path and exhibit better seismic behavior. As a result, it can be concluded that the proposed connections are more suitable for applications in moment resisting frames in seismic regions.

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Section: Introductionmentioning

confidence: 99%

Seismic Behavior of Through-Diaphragm Connections Between CFRT Columns and Steel Beams-Experimental Study

Qin¹,

Chen

Wang³

et al. 2014

Volume 10 Number 3

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“…Additionally, CFTs have numerous advantages in construction including increased speed, lower costs, and elimination of formwork . Successful usage of CFT moment resisting frames in seismic areas is associated with the connection performance of the steel beam to the CFT column . Difficulties in detailing and the complexity of implementing some connections have led to increasing research on safer connections with easier and more economical detailing .…”

Section: Introductionmentioning

confidence: 83%

“…Successful usage of CFT moment resisting frames in seismic areas is associated with the connection performance of the steel beam to the CFT column . Difficulties in detailing and the complexity of implementing some connections have led to increasing research on safer connections with easier and more economical detailing . If connection details are complex and uneconomical constructors will ignore the benefit of CFT columns and savings gained from reduced consumption of steel.…”

Section: Introductionmentioning

confidence: 99%

Joint behavior and design procedure of a through plate connection for steel beam to hollow or concrete‐filled tubular columns

Ahmadi

Mirghaderi

2020

Structural Design Tall Build

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Summary The through plate connection has a practical reliable configuration for fully restrained connections for a steel I‐beam to hollow or concrete‐filled tubular columns in seismic areas. Based on experimental programs of authors on interior planar moment connections via through plate technique, this paper presents the outcome of the studies focusing on the joint behavior and the shear transfer in the panel zone of through plate connection. Based on the conducted approved three full‐scale tests, the behavior of connection components and panel zone shear force were investigated accurately in order to provide useful information and key parameters to facilitate design calculations and proportioning the connection. The contribution of each component in the total shear capacity of the panel zone region was determined. Load transfer mechanisms were explained and by quantifying the portion of load transfer paths, the calculation approach was described for design purpose. The proposed design procedure was validated for a wide range of beam to column connections using finite element models. Verified numerical models were used to conduct parametric studies. The numerical results revealed that the proposed analysis method can predict well the induced demand in the connection components and also the design procedure is suitable and secure for all cases.

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“…The existing most convenient ways of connecting a steel beam to a column tube, like welding the beam directly to the column, diaphragms and through beams, require extensive amount of on-site welding with time consuming quality control thus making them economically not feasible. According to Chen, Qin, and Wang (2015), bolted connections can provide similar or even more favourable behaviour under various load conditions. As such, bolted end-plate connections could be considered as a good alternative to their fully welded counterparts.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of CFST column to steel beam bolted connection with curved end-plates

Mudrov

Šapalas

Šaučiuvėnas

2019

Modern Building Materials, Structures and Techniques (MBMST)

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This paper presents results of experimental study of a bolted column-beam connection with an extended curved end-plate joining steel beam and a hollow core Concrete-Filled Steel Tube (CFST). Column concrete hollow core was formed by centrifugal casting process that allowed decreasing porosity, increasing homogeneity and strength of the concrete. It was expected that strength and stiffness of the joint would be significantly affected by spalling of the concrete core due to transverse action, which would limit rotation of the joint and bearing capacity of the column. However, the concrete hollow core had no prominent signs of fracture -bending strength of the joint was determined by punching shear of the steel tube wall. Further result analysis has shown that, in reference to Eurocode 3, the joint may be classified as semi-rigid and that non-uniform initial contact between the end-plates and the column can reduce stiffness of the joint. In addition to this, it has been found that the analytical Eurocode component method is in close agreement with the attained test results, but its feasibility should be validated against additional tests with other failure modes.

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Development of Connections to Concrete-Filled Rectangular Tubular Columns

Cited by 8 publications

References 32 publications

Seismic Behavior of Through-Diaphragm Connections Between CFRT Columns and Steel Beams-Experimental Study

Seismic Behavior of Through-Diaphragm Connections Between CFRT Columns and Steel Beams-Experimental Study

Joint behavior and design procedure of a through plate connection for steel beam to hollow or concrete‐filled tubular columns

Experimental study of CFST column to steel beam bolted connection with curved end-plates

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