Abstract
To evaluate the performance of the newly designed demountable reinforced concrete column-steel beam (RCS) joint, numerical simulations were performed using the finite element software ABAQUS. The analysis results show that the proposed demountable RCS joint offers enhanced load-bearing capacity and improved ductility relative to conventional cast-in-place joints. A parametric analysis was performed to further investigate the seismic behavior of these joints, focusing on factors such as axial compression ratio, steel beam web strength, stirrup ratio, flange thickness, and Y-shaped connecting plate thickness. Additionally, an analysis of the seismic force transfer mechanism of the proposed joints was conducted. The existing shear capacity calculation formula for RCS joints was improved by considering the components within the joint domain. The improved formula demonstrated a more accurate assessment of the shear capacity of the novel joints, providing a theoretical foundation for future research on this type of joint.
| Original language | English |
|---|---|
| Article number | e70047 |
| Journal | Structural Design of Tall and Special Buildings |
| Volume | 34 |
| Issue number | 9 |
| Early online date | 20 Jun 2025 |
| DOIs | |
| Publication status | Published - 25 Jun 2025 |
Keywords
- cyclic loading
- demountable joints
- mechanical behavior
- prefabrication
- RCS joint
- seismic performance
- shear capacity
ASJC Scopus subject areas
- Civil and Structural Engineering
- Architecture
- Building and Construction
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