Abstract
Bu çalışmada, fret özelliklerinin bileşik eğilme ve eksenel
yük altındaki fretli kolonların davranışına etkileri incelenmiştir.
Çalışmanın amacı Türk [1] ve Amerikan Beton Enstitüsü’nün
Yönetmeliklerinde [2] önerilen iki adet denklemden birine göre
hazırlanan deney elemanlarını test etmek ve sonuçları ayrıntılı
açıklamak olduğundan altı adet fretli kolon elemanı bileşik eğilme ve
eksenel yük altında test edilmiştir [3, 4, 5]. Deney elemanlarının
değişken parametreleri toplam beton alanının çekirdek beton alanına
oranı ve fretin akma dayanımıdır. Yönetmelikte verilen ve eksenel
yüklenmiş kolon davranışını esas alan denklemlere göre hazırlanan kolon
numunelerinin deneysel moment-eğrilikleri ve sonuçları irdelenmiş,
ayrıca analitik olarak elde edilmiş eğrilikler ile de
karşılaştırılmıştır.
References
- [1] Afet Bölgelerinde Yapılacak Yapılar Hakkında Yönetmelik, T.C. Bayındırlık ve İskan Bakanlığı, 2007, [in Turkish]. [2] ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-02) and Commentary (318R-02),” American Concrete Institute, Farmington Hills, Michigan, 2002, 443 pp. [3] Baran, M., “An Experimental Investigation on the Minimum Confinement Reinforcement Requirement of Spiral Columns”, M.Sc.. Thesis, Department of Civil Engineering, Middle East Technical University, Ankara, 1999. [4] Dinçer, S., “A Study on the Minimum Confinement in Spiral Columns,” M.Sc. Thesis, Department of Civil Engineering, Middle East Technical University, Ankara, 1999. [5] Baran, M., Dinçer, S., “Fretli Kolonlarla İlgili Deneysel Bir Çalışma”, Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt 26, No.2, 389-399, 2011. [6] El Dash, K.M., and Ahmad, S.H., “A Model for Stress-Strain Relationship of Spirally Confined Normal and High-Strength Concrete Columns,” Magazine of Concrete Research, 47, No 171, June 1995, pp. 177-184. [7] Priestley, M.J.N., Park, R., and Potangaroa, R.T., “Ductility of Spirally- Confined Concrete Columns,” Journal of the Structural Division, ASCE, January 1981, pp. 181- 202. [8] Martinez, S., Nilson, A., and Slate, F. “Spirally Reinforced High- Strength Concrete Columns,” ACI Journal, September-October 1984, pp. 431-442. [9] Cusson, D., and Paultre, P., “Stress-Strain Model for Confined High- Strength Concrete,” Journal of Structural Engineering, ASCE, 121 (3) 1995, pp. 468-477. [10] Ahmad, S.H., and Shah, S.P., “Stress-Strain Curves of Concrete Confined by Spiral Reinforcement,” ACI Journal, November- December 1982, pp. 484-490. [11] Mander, J.B., Priestley, M.J.N., and Park, R., “Observed Stress-Strain Behaviour of Confined Concrete,” Journal of Structural Engineering, ASCE, 114 (8) 1988, pp. 1827-1849. [12] Zahn, F.A., Park, R. and Priestley, M.J.N., “The Use of Grade 380 Steel for Transverse Confining Reinforcement in Columns,” Bulletin of the New Zealand National Society for Earthquake Engineering, Vol. 20, No.2, June 1987, pp. 99-115. [13] Sheikh, S.A. ve Toklucu, M.T., “Reinforced Concrete Columns Confined by Circular Spirals and Hoops,” ACI Structural Journal, 542-552, Eylül-Ekim 1993. [14] Cusson, D. ve Paultre, P., “Stress-Strain Model for Confined High- Strength Concrete,” Journal of Structural Engineering, ASCE, Cilt 121, No 3, 468-477, 1995. [15] Samra, R., Nidal, D. A. A. ve Madi, U.R., “Transverse Steel Content in Spiral Concrete Columns Subjected To Eccentric Loading,” ACI Structural Journal, 1-7, Temmuz-Ağustos 1996. [16] Özkaya, C., “An Analytical Study on Minimum Confinement in Spiral Columns”, Yüksek Lisans Tezi, İnşaat Müh. Bölümü, ODTÜ, Ankara, 2005. [17] Saatcioglu, M. ve Razvi, S. R., “Strength and Ductility of Confined Concrete”, Journal od Structural Engineering, ASCE, Cilt118, No 6, 1590-1607, 1992.
Abstract
In this study, effects of spiral steel characteristics on the behaviour of spiral columns under combined bending and axial load were investigated. Since the object of this study was to test spiral columns designed according to the two equations given in the Turkish [1] and American Concrete Institute’s Codes [2] and to report the results comprehensively, six spiral column specimens were tested under combined bending and axial load [3, 4]. The variable parameters used in this study were the the ratio of the gross concrete area to the confined core area and the yield strength of the spiral steel. Experimental Moment-Curvature graphs and test results of the columns designed according to the current Code equations, based on the axially loaded column behavior, were investigated, and additionally compared with the graphs obtained from the analytical studies.
References
- [1] Afet Bölgelerinde Yapılacak Yapılar Hakkında Yönetmelik, T.C. Bayındırlık ve İskan Bakanlığı, 2007, [in Turkish]. [2] ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-02) and Commentary (318R-02),” American Concrete Institute, Farmington Hills, Michigan, 2002, 443 pp. [3] Baran, M., “An Experimental Investigation on the Minimum Confinement Reinforcement Requirement of Spiral Columns”, M.Sc.. Thesis, Department of Civil Engineering, Middle East Technical University, Ankara, 1999. [4] Dinçer, S., “A Study on the Minimum Confinement in Spiral Columns,” M.Sc. Thesis, Department of Civil Engineering, Middle East Technical University, Ankara, 1999. [5] Baran, M., Dinçer, S., “Fretli Kolonlarla İlgili Deneysel Bir Çalışma”, Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt 26, No.2, 389-399, 2011. [6] El Dash, K.M., and Ahmad, S.H., “A Model for Stress-Strain Relationship of Spirally Confined Normal and High-Strength Concrete Columns,” Magazine of Concrete Research, 47, No 171, June 1995, pp. 177-184. [7] Priestley, M.J.N., Park, R., and Potangaroa, R.T., “Ductility of Spirally- Confined Concrete Columns,” Journal of the Structural Division, ASCE, January 1981, pp. 181- 202. [8] Martinez, S., Nilson, A., and Slate, F. “Spirally Reinforced High- Strength Concrete Columns,” ACI Journal, September-October 1984, pp. 431-442. [9] Cusson, D., and Paultre, P., “Stress-Strain Model for Confined High- Strength Concrete,” Journal of Structural Engineering, ASCE, 121 (3) 1995, pp. 468-477. [10] Ahmad, S.H., and Shah, S.P., “Stress-Strain Curves of Concrete Confined by Spiral Reinforcement,” ACI Journal, November- December 1982, pp. 484-490. [11] Mander, J.B., Priestley, M.J.N., and Park, R., “Observed Stress-Strain Behaviour of Confined Concrete,” Journal of Structural Engineering, ASCE, 114 (8) 1988, pp. 1827-1849. [12] Zahn, F.A., Park, R. and Priestley, M.J.N., “The Use of Grade 380 Steel for Transverse Confining Reinforcement in Columns,” Bulletin of the New Zealand National Society for Earthquake Engineering, Vol. 20, No.2, June 1987, pp. 99-115. [13] Sheikh, S.A. ve Toklucu, M.T., “Reinforced Concrete Columns Confined by Circular Spirals and Hoops,” ACI Structural Journal, 542-552, Eylül-Ekim 1993. [14] Cusson, D. ve Paultre, P., “Stress-Strain Model for Confined High- Strength Concrete,” Journal of Structural Engineering, ASCE, Cilt 121, No 3, 468-477, 1995. [15] Samra, R., Nidal, D. A. A. ve Madi, U.R., “Transverse Steel Content in Spiral Concrete Columns Subjected To Eccentric Loading,” ACI Structural Journal, 1-7, Temmuz-Ağustos 1996. [16] Özkaya, C., “An Analytical Study on Minimum Confinement in Spiral Columns”, Yüksek Lisans Tezi, İnşaat Müh. Bölümü, ODTÜ, Ankara, 2005. [17] Saatcioglu, M. ve Razvi, S. R., “Strength and Ductility of Confined Concrete”, Journal od Structural Engineering, ASCE, Cilt118, No 6, 1590-1607, 1992.
Details
| Journal Section | Articles |
|---|---|
| Authors | |
| Publication Date | June 15, 2011 |
| Submission Date | October 23, 2017 |
| Published in Issue | Year 2011 Volume: 3 Issue: 2 |
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