Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords
In this research paper, simulations on five specimens of square steel tube truss concrete beams with grouted chords were conducted by finite element analysis (FEA) software ABAQUS. Comparison of failure modes, vertical load-deflection curves, and steel tube strain variation with tests was done. The...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6694291 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832565630353539072 |
|---|---|
| author | Kun Wang Zhiyu Zhu Huihui Luo Ahmed Ahmad Omar |
| author_facet | Kun Wang Zhiyu Zhu Huihui Luo Ahmed Ahmad Omar |
| author_sort | Kun Wang |
| collection | DOAJ |
| description | In this research paper, simulations on five specimens of square steel tube truss concrete beams with grouted chords were conducted by finite element analysis (FEA) software ABAQUS. Comparison of failure modes, vertical load-deflection curves, and steel tube strain variation with tests was done. The rationality and validity of the FEA models were also verified. On this basis, parameter analysis was carried out, and the influence of concrete strength, steel ratio of upper and lower chords, and spacing of steel tube truss joints on the vertical load-deflection curves were obtained. From the results of tests and parameter analysis, design formulae of flexural bearing capacity for composite beams were proposed based on the assumption that steel tubes are equivalent to ordinary longitudinal steel bars. Accordingly, the results indicated that the steel tubes of the upper chords in the composite beams cannot get yield for full sections due to the structural requirements; the steel tube of the lower chords will be the first to reach fully yielding and the upper concrete crushed subsequently, showing a failure mode analogous to that of the under-reinforced concrete beam; the steel ratio of lower chords is the primary factor affecting the flexural capacity of the normal section among the parameters; the calculation from the proposed design formulae for the flexural capacity of normal section is in agreement with the tests and simulations. This research could provide reference for the design of this kind of composite beam. |
| format | Article |
| id | doaj-art-1ac0d460065743d8a99346d54b3028c0 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-1ac0d460065743d8a99346d54b3028c02025-02-03T01:07:07ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/66942916694291Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted ChordsKun Wang0Zhiyu Zhu1Huihui Luo2Ahmed Ahmad Omar3College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Guangling, Yangzhou University, Yangzhou 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaIn this research paper, simulations on five specimens of square steel tube truss concrete beams with grouted chords were conducted by finite element analysis (FEA) software ABAQUS. Comparison of failure modes, vertical load-deflection curves, and steel tube strain variation with tests was done. The rationality and validity of the FEA models were also verified. On this basis, parameter analysis was carried out, and the influence of concrete strength, steel ratio of upper and lower chords, and spacing of steel tube truss joints on the vertical load-deflection curves were obtained. From the results of tests and parameter analysis, design formulae of flexural bearing capacity for composite beams were proposed based on the assumption that steel tubes are equivalent to ordinary longitudinal steel bars. Accordingly, the results indicated that the steel tubes of the upper chords in the composite beams cannot get yield for full sections due to the structural requirements; the steel tube of the lower chords will be the first to reach fully yielding and the upper concrete crushed subsequently, showing a failure mode analogous to that of the under-reinforced concrete beam; the steel ratio of lower chords is the primary factor affecting the flexural capacity of the normal section among the parameters; the calculation from the proposed design formulae for the flexural capacity of normal section is in agreement with the tests and simulations. This research could provide reference for the design of this kind of composite beam.http://dx.doi.org/10.1155/2021/6694291 |
| spellingShingle | Kun Wang Zhiyu Zhu Huihui Luo Ahmed Ahmad Omar Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords Advances in Materials Science and Engineering |
| title | Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords |
| title_full | Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords |
| title_fullStr | Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords |
| title_full_unstemmed | Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords |
| title_short | Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords |
| title_sort | analysis on flexural capacity of square steel tube truss concrete beams with grouted chords |
| url | http://dx.doi.org/10.1155/2021/6694291 |
| work_keys_str_mv | AT kunwang analysisonflexuralcapacityofsquaresteeltubetrussconcretebeamswithgroutedchords AT zhiyuzhu analysisonflexuralcapacityofsquaresteeltubetrussconcretebeamswithgroutedchords AT huihuiluo analysisonflexuralcapacityofsquaresteeltubetrussconcretebeamswithgroutedchords AT ahmedahmadomar analysisonflexuralcapacityofsquaresteeltubetrussconcretebeamswithgroutedchords |