Abstract
The purpose of this study was to investigate the seismic behavior of RC columns jacketed with a large welded octagonal stirrup at the center and four small spiral stirrups at the corners. Six full-scale RC columns jacketed with the modified multi-spiral stirrups were tested under lateral cyclic load. The effects of axial compression ratio of existing column, shear span ratio and stirrups volumetric ratio in jacket on the seismic behavior of jacketed columns were analyzed. The specimens exhibited excellent deformability and the ultimate drift ratios ranged from 0.046 to 0.063, 2.30–3.15 times as much as specified limit (0.02) of rare earthquake. Additionally, the finite element extended parameter analysis was supplemented after the finite element model verified by the experiment. Finally, an empirical formula for predicting the ductility factor was proposed and exhibited good correlations with the available data of concrete jacketed columns.
| Original language | English |
|---|---|
| Article number | 158 |
| Journal | Archives of Civil and Mechanical Engineering |
| Volume | 22 |
| Issue number | 4 |
| DOIs | |
| State | Published - Nov 2022 |
Keywords
- Ductility
- Hysteretic loops
- Jacketed column
- Modified multi-spiral transverse reinforcement
- Seismic performance
- Skeleton curves
Fingerprint
Dive into the research topics of 'Seismic behavior of full-scale RC columns jacketed by modified multi-spiral stirrups'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver