Axial Compressive Experimental Study on Full-Scale Square Concrete Columns Confined by High-Strength Spiral Hoops

Abstract:

3 specimens of full-scale reinforced concrete columns were tested under monotonic axial loading, in which the hoop configuration of one specimen was #, and the other two used the two-directional composite spiral hoops. The axial compressive performances of full-scale reinforced concrete columns confined by different configurations and strengths of hoops were discussed. One of the columns confined by spiral hoops used high-strength steels with the yield strength of 1000MPa as hoops, while the other two columns used ordinary-strength steel with yield strength of 400MPa. Columns confined by spiral hoops exhibited slight higher bearing capacity and better deformation ability than columns with hoop configuration #. The results also indicated that compared with the specimen used ordinary-strength hoops, the bearing capacity of the specimen used high-strength hoops was basically the same, but the deformation ability improved obviously.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 2036-2041
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.2036
• Online since: February 2012
• Authors: Zhen Bao Li, Wen Jing Wang, Wei Jing Zhang, Yun Da Shao, Bing Zhang, Mei Guang Fan, Shuang Ping Lin
• Keywords: Compressive Bearing Capacity, Deformation Ability, Full-Scale Reinforced Concrete Columns, High-Strength Hoops, Spiral Hoops

References

[1] Zhenbao Li, Wenjing Wang, Meiguang Fan etc.: Journal of Industrial Construction, Vol. SUPPL (2011), p.1182, (in Chinese).

[2] Aoyama Hiroyuki: Design of Modern High-rise Reinforced Concrete Structures (Translated by Zhang Chuan, Chongqing University Press, Chongqing, China, 2006), (in Chinese).

[3] Meiguang Fan, Shuangping Lin, Jun Zhao: Construction Technology, Vol. 06 (2011), p.16, (in Chinese).

[4] Meiguang Fan, Qiaofei Chen etc.: Public Communication of Science & Technology, Vol. 04 (2011), p.142, (in Chinese).

[5] Kun Yang, Qingxuan Shi, Qiuwei Wang and Jinjie Men: J. Xian Univ. of Arch. & Tech. (Natural Science Edition), Vol. 41 (2009), p.161, (in Chinese).

[6] Y.P. Sun, T. Oba, F.S. Tian etc.: Eleventh World Conference on Earthquake Engineering (1996), p.1363.

[7] Sakino, K. and Y. P. Sun: Journal of Struct. and Engng., AIJ, No. 461, (1994), p.95, (in Japanese).

[8] Q/HD ZGR 001-2010, Steel Bar for High Strength Hooped Reinforcement (China Iron & Steel Research Institute Group Press, Beijing, 2010), (in Chinese).