.png){kind=icon}
.png){kind=icon}
Return
Cyclic seismic performance of concrete-filled double-skin steel tubular beam-column joints with stiffening ribs
.png){kind=icon}
PRE
AI
X
G
F
J
T
J
DOI：10.1007/s10518-026-02625-3.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
This paper studies the mechanical properties of conventional hollow double-skin steel tubular concrete beam-column joints, with particular emphasis on clarifying the role of stiffening ribs in their seismic performance. Three joint models were designed: a plain hollow joint (JD-PTZK), a non-through stiffening rib joint (JD-FGTZK), and a through stiffening rib joint (JD-GTZK). Low-cycle reversed loading tests were conducted under controlled pseudo-static loading conditions revealed that the JD-FGTZK joint significantly enhances the structural integrity of inner and outer steel tubes, achieving a 2.4-fold increase in bearing capacity compared to the JD-PTZK. Although weld quality limitations partly limited the realized performance, the non-through ribs still demonstrated substantial energy dissipation improvement. The JD-GTZK configuration maintained a 20% capacity enhancement, and its final visible damage was mainly beam-flange buckling rather than obvious external deformation of the joint region. This observation is consistent with the intended “strong column-weak beam” design philosophy under the present test conditions. Comparative experimental response analysis encompassing hysteretic behavior, skeleton curves, deformation capacity, stiffness degradation, and energy dissipation metrics indicates that the use of stiffeners improves joint seismic performance. The conclusions are therefore framed as observations from this three-specimen experimental program, and further repeated tests and numerical parametric studies are needed before direct design generalization.
Keywords:
Hollow double-skin steel tubular concrete
Beam-column joint
Stiffening rib
Seismic performance
Bearing capacity
Journal
IF:
4.1
Papers:
3.6K
Citations:
1.0W
Organization
Cited Papers