Abstract
In this paper, experimental investigation of cyclic response of steel-tubed high-strength reinforced-concrete (STHSRC) columns is presented. An STHSRC column is an ordinary reinforced-concrete column where most of the transverse reinforcement is in the form of a thin steel tube. The steel tube confines the whole concrete section and provides high shear resistance. Steel-tubed columns are more ductile and have higher lateral resistance than ordinary reinforced-concrete columns and concrete-filled tubed columns, even under high axial compressive loads. In this paper, the seismic behavior of STHSRC columns is presented. Six full-scale columns were experimentally investigated under constant axial loads and cyclic lateral load/displacement. Test results were compared with those of ordinary high-strength reinforced-concrete columns. Based on the findings of this research, STHSRC columns exhibit higher lateral strength and ductility than ordinary reinforced-concrete columns. Unlike that of ordinary reinforced-concrete columns, the ductility of STHSRC columns is not sensitive to the presence of axial compressive loads.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 485-494 |
| Number of pages | 10 |
| Journal | Journal of Structural Engineering |
| Volume | 125 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 1999 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering