Abstract
Available test results and stress - strain models for poorly confined high-strength columns, more specifically for columns with a tie volumetric ratio smaller than 2·0%, are scarce. This paper presents test results loaded in the axial direction for square reinforced concrete (RC) columns confined by various volumetric ratio lateral ties including low volumetric ratio. Test variables include concrete compressive strength, tie yield strength, tie arrangement type and tie volumetric ratio. Local strains are measured using strain gauges bonded to an acryl rod. For square RC columns confined by lateral ties, the confinement effect was improved by changing tie arrangement type from type A to type B. A method to compute the stress in lateral ties at the concrete peak strength is proposed, as well as a new stress - strain model for the confined concrete. The model shows good agreement with stress - strain relationships established experimentally over a wide range of confinement parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 101-115 |
| Number of pages | 15 |
| Journal | Magazine of Concrete Research |
| Volume | 58 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 Mar |
| Externally published | Yes |
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ASJC Scopus subject areas
- Building and Construction
- Materials Science(all)
Cite this
Stress - Strain behaviour of high-strength concrete columns confined by low-volumetric ratio rectangular ties. / Hong, K. N.; Akiyama, Mitsuyoshi; Yi, S. T.; Suzuki, M.
In: Magazine of Concrete Research, Vol. 58, No. 2, 03.2006, p. 101-115.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Stress - Strain behaviour of high-strength concrete columns confined by low-volumetric ratio rectangular ties
AU - Hong, K. N.
AU - Akiyama, Mitsuyoshi
AU - Yi, S. T.
AU - Suzuki, M.
PY - 2006/3
Y1 - 2006/3
N2 - Available test results and stress - strain models for poorly confined high-strength columns, more specifically for columns with a tie volumetric ratio smaller than 2·0%, are scarce. This paper presents test results loaded in the axial direction for square reinforced concrete (RC) columns confined by various volumetric ratio lateral ties including low volumetric ratio. Test variables include concrete compressive strength, tie yield strength, tie arrangement type and tie volumetric ratio. Local strains are measured using strain gauges bonded to an acryl rod. For square RC columns confined by lateral ties, the confinement effect was improved by changing tie arrangement type from type A to type B. A method to compute the stress in lateral ties at the concrete peak strength is proposed, as well as a new stress - strain model for the confined concrete. The model shows good agreement with stress - strain relationships established experimentally over a wide range of confinement parameters.
AB - Available test results and stress - strain models for poorly confined high-strength columns, more specifically for columns with a tie volumetric ratio smaller than 2·0%, are scarce. This paper presents test results loaded in the axial direction for square reinforced concrete (RC) columns confined by various volumetric ratio lateral ties including low volumetric ratio. Test variables include concrete compressive strength, tie yield strength, tie arrangement type and tie volumetric ratio. Local strains are measured using strain gauges bonded to an acryl rod. For square RC columns confined by lateral ties, the confinement effect was improved by changing tie arrangement type from type A to type B. A method to compute the stress in lateral ties at the concrete peak strength is proposed, as well as a new stress - strain model for the confined concrete. The model shows good agreement with stress - strain relationships established experimentally over a wide range of confinement parameters.
UR - http://www.scopus.com/inward/record.url?scp=33645032690&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645032690&partnerID=8YFLogxK
U2 - 10.1680/macr.2006.58.2.101
DO - 10.1680/macr.2006.58.2.101
M3 - Article
AN - SCOPUS:33645032690
VL - 58
SP - 101
EP - 115
JO - Magazine of Concrete Research
JF - Magazine of Concrete Research
SN - 0024-9831
IS - 2
ER -