Abstract
In order to investigate the flexural bearing capacity of panel zone of diaphragm-Through joint between concrete filled square steel tubular column and steel beam, four specimens were tested under static tension loads to study the mechanical properties and bearing capacity of diaphragm-Through joints with a failure mode of panel zone. Finite element models of these specimens were developed to simulate the test and compare the predicted failure modes, load-displacement curves and bearing capacities with the experimentally observed. It was found that the tensile load from the steel beam flange is mainly shared by the square steel tube and the diaphragm. The diaphragm plastic zone appears along the cross-section lines enclosed by the square steel tube and the influence of steel beam web on the plastic zone of the steel tube is significant and cannot be neglected. Computational models of yield lines on square steel tube and diaphragm are established based on the distribution pattern of the plastic zone, and an analytical method for the evaluation of the bearing capacity of the joint is proposed. The theoretical results and the experimental data are compared and found in good agreement.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 487-500 |
| Number of pages | 14 |
| Journal | Steel and Composite Structures |
| Volume | 20 |
| Issue number | 3 |
| DOIs | |
| State | Published - Feb 29 2016 |
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Keywords
- Diaphragm-Through joint
- Finite element analysis
- Flexural bearing capacity
- Static tensile loading experiment
- Yield line
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Metals and Alloys
Cite this
Flexural bearing capacity of diaphragm-Through joints of concrete-filled square steel tubular columns. / Rong, Bin; Liu, Rui; Zhang, Ruoyu; Chen, Zhihua; Apostolos, Fafitis.
In: Steel and Composite Structures, Vol. 20, No. 3, 29.02.2016, p. 487-500.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Flexural bearing capacity of diaphragm-Through joints of concrete-filled square steel tubular columns
AU - Rong, Bin
AU - Liu, Rui
AU - Zhang, Ruoyu
AU - Chen, Zhihua
AU - Apostolos, Fafitis
PY - 2016/2/29
Y1 - 2016/2/29
N2 - In order to investigate the flexural bearing capacity of panel zone of diaphragm-Through joint between concrete filled square steel tubular column and steel beam, four specimens were tested under static tension loads to study the mechanical properties and bearing capacity of diaphragm-Through joints with a failure mode of panel zone. Finite element models of these specimens were developed to simulate the test and compare the predicted failure modes, load-displacement curves and bearing capacities with the experimentally observed. It was found that the tensile load from the steel beam flange is mainly shared by the square steel tube and the diaphragm. The diaphragm plastic zone appears along the cross-section lines enclosed by the square steel tube and the influence of steel beam web on the plastic zone of the steel tube is significant and cannot be neglected. Computational models of yield lines on square steel tube and diaphragm are established based on the distribution pattern of the plastic zone, and an analytical method for the evaluation of the bearing capacity of the joint is proposed. The theoretical results and the experimental data are compared and found in good agreement.
AB - In order to investigate the flexural bearing capacity of panel zone of diaphragm-Through joint between concrete filled square steel tubular column and steel beam, four specimens were tested under static tension loads to study the mechanical properties and bearing capacity of diaphragm-Through joints with a failure mode of panel zone. Finite element models of these specimens were developed to simulate the test and compare the predicted failure modes, load-displacement curves and bearing capacities with the experimentally observed. It was found that the tensile load from the steel beam flange is mainly shared by the square steel tube and the diaphragm. The diaphragm plastic zone appears along the cross-section lines enclosed by the square steel tube and the influence of steel beam web on the plastic zone of the steel tube is significant and cannot be neglected. Computational models of yield lines on square steel tube and diaphragm are established based on the distribution pattern of the plastic zone, and an analytical method for the evaluation of the bearing capacity of the joint is proposed. The theoretical results and the experimental data are compared and found in good agreement.
KW - Diaphragm-Through joint
KW - Finite element analysis
KW - Flexural bearing capacity
KW - Static tensile loading experiment
KW - Yield line
UR - http://www.scopus.com/inward/record.url?scp=84960327814&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960327814&partnerID=8YFLogxK
U2 - 10.12989/scs.2016.20.3.487
DO - 10.12989/scs.2016.20.3.487
M3 - Article
VL - 20
SP - 487
EP - 500
JO - Steel and Composite Structures
JF - Steel and Composite Structures
SN - 1229-9367
IS - 3
ER -