Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns
Four composite joint specimens consisted of concrete-encased steel beams and concrete-encased concrete-filled steel tube (CFST) columns were tested under lateral cyclic loading, in which three specimens were prestressed and the other was not. In the tests, crack distributions and failure modes of th...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/4523045 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832566669713604608 |
|---|---|
| author | Kun Wang Huihui Luo |
| author_facet | Kun Wang Huihui Luo |
| author_sort | Kun Wang |
| collection | DOAJ |
| description | Four composite joint specimens consisted of concrete-encased steel beams and concrete-encased concrete-filled steel tube (CFST) columns were tested under lateral cyclic loading, in which three specimens were prestressed and the other was not. In the tests, crack distributions and failure modes of the joint specimens were acquired, and the energy dissipation, rigidity degeneration, ductility, and residential deformation were investigated. Meanwhile, the strain variation of longitudinal rebars and I-steel flanges at beam ends as well as steel tubes in panel zones were analysed. The experimental results showed that a type of mixed mode consisting of shear failure in the panel zone and flexural failure at beam ends was found for three prestressed joint specimens, whilst only flexural failure at beam ends was observed for the non-prestressed one, and all joint specimens showed good hysteretic behaviour. In addition, as can be seen from the skeleton curves, the lateral peak loads of prestressed joint specimens could be enhanced to some extent by increasing the prestressing level, and the axial compression ratio had little effect on lateral loads; meanwhile, the ductility and energy dissipation for prestressed joint specimens also could be reduced by increasing the prestressing level and axial compression ratio. |
| format | Article |
| id | doaj-art-3fc4986dde4d4802b387735d7af74efe |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-3fc4986dde4d4802b387735d7af74efe2025-02-03T01:03:28ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/45230454523045Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST ColumnsKun Wang0Huihui Luo1College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Guangling, Yangzhou University, Yangzhou 225127, ChinaFour composite joint specimens consisted of concrete-encased steel beams and concrete-encased concrete-filled steel tube (CFST) columns were tested under lateral cyclic loading, in which three specimens were prestressed and the other was not. In the tests, crack distributions and failure modes of the joint specimens were acquired, and the energy dissipation, rigidity degeneration, ductility, and residential deformation were investigated. Meanwhile, the strain variation of longitudinal rebars and I-steel flanges at beam ends as well as steel tubes in panel zones were analysed. The experimental results showed that a type of mixed mode consisting of shear failure in the panel zone and flexural failure at beam ends was found for three prestressed joint specimens, whilst only flexural failure at beam ends was observed for the non-prestressed one, and all joint specimens showed good hysteretic behaviour. In addition, as can be seen from the skeleton curves, the lateral peak loads of prestressed joint specimens could be enhanced to some extent by increasing the prestressing level, and the axial compression ratio had little effect on lateral loads; meanwhile, the ductility and energy dissipation for prestressed joint specimens also could be reduced by increasing the prestressing level and axial compression ratio.http://dx.doi.org/10.1155/2019/4523045 |
| spellingShingle | Kun Wang Huihui Luo Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns Advances in Civil Engineering |
| title | Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns |
| title_full | Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns |
| title_fullStr | Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns |
| title_full_unstemmed | Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns |
| title_short | Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete-Encased CFST Columns |
| title_sort | test on hysteretic behaviour of prestressed composite joints with concrete encased cfst columns |
| url | http://dx.doi.org/10.1155/2019/4523045 |
| work_keys_str_mv | AT kunwang testonhystereticbehaviourofprestressedcompositejointswithconcreteencasedcfstcolumns AT huihuiluo testonhystereticbehaviourofprestressedcompositejointswithconcreteencasedcfstcolumns |