Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures
This paper firstly studied the internal force transfer mechanism of vertical stiffener joints in concrete-filled double steel tubular (CFDST) frame structures on the basis of finite element modeling (FEM). Analytical models of shear force and bending moment were established through the appropriate m...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2105365 |
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| _version_ | 1850165898494607360 |
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| author | Yufen Zhang Dongfang Zhang Krushar Demoha |
| author_facet | Yufen Zhang Dongfang Zhang Krushar Demoha |
| author_sort | Yufen Zhang |
| collection | DOAJ |
| description | This paper firstly studied the internal force transfer mechanism of vertical stiffener joints in concrete-filled double steel tubular (CFDST) frame structures on the basis of finite element modeling (FEM). Analytical models of shear force and bending moment were established through the appropriate material constitutive equations and equilibrium theory. Then, the proposed models were used to predict and evaluate the shear and bending resistance of the vertical stiffener joint. Six joint specimens were tested to verify the rationality of the theoretical models, and the design suggestions for construction were subsequently discussed. The analysis indicated that the vertical stiffener together with the anchorage web played a dominated role in the internal force transfer mechanism. The computed bending resistance obtained by the tension model agreed well with the measured experimental data, and the shear resistance in the panel zone was sufficient to guarantee the ductile failure in the test. The vertical stiffener determined the plastic hinge so as to ensure the strong connection between the CFDST column and the steel beam. The ribbed anchorage web was an effective way of increasing the shear and bending resistance. |
| format | Article |
| id | doaj-art-dc87292887cc4a2eab9645f5b353b2cf |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-dc87292887cc4a2eab9645f5b353b2cf2025-08-20T02:21:37ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/21053652105365Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST StructuresYufen Zhang0Dongfang Zhang1Krushar Demoha2School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, ChinaSchool of Civil Engineering, Chang’an University, Xi’an 710061, Shaanxi Province, ChinaDepartment of Mechanical Engineering, University of Auckland, 1142 Auckland, New ZealandThis paper firstly studied the internal force transfer mechanism of vertical stiffener joints in concrete-filled double steel tubular (CFDST) frame structures on the basis of finite element modeling (FEM). Analytical models of shear force and bending moment were established through the appropriate material constitutive equations and equilibrium theory. Then, the proposed models were used to predict and evaluate the shear and bending resistance of the vertical stiffener joint. Six joint specimens were tested to verify the rationality of the theoretical models, and the design suggestions for construction were subsequently discussed. The analysis indicated that the vertical stiffener together with the anchorage web played a dominated role in the internal force transfer mechanism. The computed bending resistance obtained by the tension model agreed well with the measured experimental data, and the shear resistance in the panel zone was sufficient to guarantee the ductile failure in the test. The vertical stiffener determined the plastic hinge so as to ensure the strong connection between the CFDST column and the steel beam. The ribbed anchorage web was an effective way of increasing the shear and bending resistance.http://dx.doi.org/10.1155/2019/2105365 |
| spellingShingle | Yufen Zhang Dongfang Zhang Krushar Demoha Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures Advances in Materials Science and Engineering |
| title | Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures |
| title_full | Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures |
| title_fullStr | Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures |
| title_full_unstemmed | Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures |
| title_short | Internal Force Transfer Mechanism and Bearing Capacity of Vertical Stiffener Joints in CFDST Structures |
| title_sort | internal force transfer mechanism and bearing capacity of vertical stiffener joints in cfdst structures |
| url | http://dx.doi.org/10.1155/2019/2105365 |
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