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Uniaxial Compression Behavior of High-Strength Concrete Confined by Low-Volumetric Ratio Lateral Ties
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 Title & Authors
Uniaxial Compression Behavior of High-Strength Concrete Confined by Low-Volumetric Ratio Lateral Ties
Hong Ki-Nam; Han Sang-Hoon;
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Presently, test results and stress-strain models for poorly confined high-strength columns, more specifically for columns with a tie volumetric ratio smaller than , are scarce. This paper presents test results loaded in axial direction for square reinforced concrete 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 measured using strain gages bonded to an acryl rod. For square RC columns confined by lateral ties, the confinement effect was efficiently 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 and a new stress-strain model for the confined concrete are proposed. Over a wide range of confinement parameters, the model shows good agreement with stress-strain relationships established experimentally.
high-strength concrete;column;low-volumetric ratio;localized region length;stress-strain curve;
 Cited by
아라미드 스트랩으로 프리스트레싱 횡구속된 RC 원형기둥의 일축압축거동에 관한 실험적 연구,한상훈;홍기남;이재범;

한국콘크리트학회논문집, 2009. vol.21. 2, pp.159-168 crossref(new window)
Han B. S., Shin S. W., and Bahn B. Y., 'A model of confined concrete in high-strength reinforced concrete tied columns,' Magazine of Concrete Research, Vol.55, No.3, 2003, pp. 203-214 crossref(new window)

Hong K. N., Han S. H., and Yi S. T., 'Stress-strain curves of high-strength concrete columns confined by low-volumetric ratio lateral ties,' Engineering Structures, 2005, (submitted)

Structure Committee of New RC Project, 'Report of 'Development Advanced Reinforced Concrete Buildings Using Highstrength Concrete and Reinforcement (New RC Project)', Japan Institute of Construction Engineering, 1993, pp.4-152

Special Committee on Earthquake Disaster Measures, 'Specification for Highway Bridges Part V: Seismic Design,' Japan Road Association 1997

Li B., Park R. and Tanaka H., 'Stress-strain behavior of highstrength concrete confined by ultra-high- and normal-strength transverse reinforcements,' ACI Structural Journal, Vol.98, No.3, 2001, pp.395-406

Razvi S. and Saatcioglu M., 'Circular high-strength concrete columns under concentric compression,' ACI Structural Journal, Vol.96, No.5, 1999, pp.817 -825

Saatcioglu M. and Razvi S., 'High-strength concrete columns with square sections under concentric compression,' Journal of Structural Engineering, ASCE, Vol.124, No.12, 1998, pp.1438 -1447 crossref(new window)

Nakamura H. and Higai T., Compressive fracture energy and fracture zone length of concrete, JCI-C5IE, 1999, pp. 259-272

Tomosawa F., Noguchi T., and Onoyama K, 'Effect of longitudinal of testing machine on compressive strength of concrete,' Proceedings of the Japan Concrete Institute, Vol. 12, No.1, 1990, pp.251-256

Mander J. B., Priestley M. J. N. and Park R., 'Theoretical stress-strain model for confined concrete,' Journal of Structural Engineering, ASCE, Vol. 114, No.8, 1988, pp.1804-1826 crossref(new window)

Razvi S. and Saatcioglu M., 'Confinement model for highstrength concrete,' Journal of Structural Engineering, ASCE, Vol.125, No.3, 1999, pp.281-289 crossref(new window)

Nielsen C. V., 'Triaxial behavior of high-strength concrete and mortar,' ACI Materials Journal, Vol.95, No.2, 1998, pp. 144-151

Fafitis A. and Shah S. P., Lateral reinforcement for highstrength concrete columns, In High-Strength Concrete, ACI Special Publication, SP-87. American Concrete Institute, Farmington Hills, MI, USA, 1985, pp.213-232

Cusson D. and Paultre P., ' Stress-strain model for confined high-strength concrete,' Journal of Structural Engineering, ASCE, Vol. 121, No.3, 1995, pp. 468-477 crossref(new window)

Garrasquillo R. L., Nilson A. H. and Slate F. O., 'Properties of high-strength concrete subjected to short term loads,' ACI Journal, Vol.78, No.3, 1981, pp.171-178

Hoshikuma J., Kawashima K., and Nagaya K., 'A stress-strain model for reinforced concrete columns confined by lateral reinforcement,' Journal of Materials, Concrete Structures and Pavements, JSCE, Vol.28, No.520, 1995, pp.1 -11