Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams
This study examined the design of joints reinforced by sleeves for connecting circular concrete-filled steel tube columns to steel beams. Six half-scale specimens, including four bolt-weld joints reinforced by sleeves and two bolt and stiffened end-plate joints, were designed and tested under cyclic...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/9674128 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850238126165852160 |
|---|---|
| author | Yonghong Bu Qi Yang Yihong Wang Dongfang Zhang |
| author_facet | Yonghong Bu Qi Yang Yihong Wang Dongfang Zhang |
| author_sort | Yonghong Bu |
| collection | DOAJ |
| description | This study examined the design of joints reinforced by sleeves for connecting circular concrete-filled steel tube columns to steel beams. Six half-scale specimens, including four bolt-weld joints reinforced by sleeves and two bolt and stiffened end-plate joints, were designed and tested under cyclic loading to evaluate the seismic behavior of these joints. The joint construction and beam-column stiffness ratio were taken as the main parameters in the tests. The seismic behaviors, including the failure modes, hysteretic curves, ductility, strength and stiffness degradation, and energy dissipation, were investigated. The experimental results showed that no obvious bolt loosening, fracture, or widespread weld cracking appeared in the joints reinforced by sleeves. Furthermore, the joint strength and stiffness were markedly increased by the sleeves in the joint core area. Overall, most specimens exhibited full hysteresis loops and excellent ductilities, the equivalent viscous damping coefficients were 0.263∼0.532, and the ductility coefficients were 1.77∼3.42. The interstory drift ratios satisfied the requirements specified by technical regulations. The connections of these types exhibit favorable energy dissipations and can be effectively utilized for building construction in earthquake-prone areas. This research should contribute to the future engineering applications of concrete-filled steel tube to composite structure. |
| format | Article |
| id | doaj-art-082ab3e752014a3cabb0d2c74d573bfc |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-082ab3e752014a3cabb0d2c74d573bfc2025-08-20T02:01:34ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/96741289674128Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel BeamsYonghong Bu0Qi Yang1Yihong Wang2Dongfang Zhang3School of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaSchool of Economics and Management, Chang’an University, Xi’an, Shaanxi 710064, ChinaSchool of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaSchool of Civil Engineering, Chang’an University, Xi’an, Shaanxi 710061, ChinaThis study examined the design of joints reinforced by sleeves for connecting circular concrete-filled steel tube columns to steel beams. Six half-scale specimens, including four bolt-weld joints reinforced by sleeves and two bolt and stiffened end-plate joints, were designed and tested under cyclic loading to evaluate the seismic behavior of these joints. The joint construction and beam-column stiffness ratio were taken as the main parameters in the tests. The seismic behaviors, including the failure modes, hysteretic curves, ductility, strength and stiffness degradation, and energy dissipation, were investigated. The experimental results showed that no obvious bolt loosening, fracture, or widespread weld cracking appeared in the joints reinforced by sleeves. Furthermore, the joint strength and stiffness were markedly increased by the sleeves in the joint core area. Overall, most specimens exhibited full hysteresis loops and excellent ductilities, the equivalent viscous damping coefficients were 0.263∼0.532, and the ductility coefficients were 1.77∼3.42. The interstory drift ratios satisfied the requirements specified by technical regulations. The connections of these types exhibit favorable energy dissipations and can be effectively utilized for building construction in earthquake-prone areas. This research should contribute to the future engineering applications of concrete-filled steel tube to composite structure.http://dx.doi.org/10.1155/2020/9674128 |
| spellingShingle | Yonghong Bu Qi Yang Yihong Wang Dongfang Zhang Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams Advances in Civil Engineering |
| title | Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams |
| title_full | Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams |
| title_fullStr | Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams |
| title_full_unstemmed | Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams |
| title_short | Cyclic Testing of Bolt-Weld Joints Reinforced by Sleeves Connecting Circular CFST Columns to Steel Beams |
| title_sort | cyclic testing of bolt weld joints reinforced by sleeves connecting circular cfst columns to steel beams |
| url | http://dx.doi.org/10.1155/2020/9674128 |
| work_keys_str_mv | AT yonghongbu cyclictestingofboltweldjointsreinforcedbysleevesconnectingcircularcfstcolumnstosteelbeams AT qiyang cyclictestingofboltweldjointsreinforcedbysleevesconnectingcircularcfstcolumnstosteelbeams AT yihongwang cyclictestingofboltweldjointsreinforcedbysleevesconnectingcircularcfstcolumnstosteelbeams AT dongfangzhang cyclictestingofboltweldjointsreinforcedbysleevesconnectingcircularcfstcolumnstosteelbeams |