Axial Compressive Performance of Concrete Column Reinforced by Prestressed Steel Strips

Abstract

Abstract: Thirty-two reinforced columns and four unreinforced columns were tested under axial compression. The effects of the steel strip spacing and layer number on the bearing capacity and deformation capacity were investigated. Experimental results show that the cylindrical concrete column specimens with prestressed steel strips can effectively improve the axial compression performance. Not only the bearing capacity of columns under axial compression is improved, but also the deformation capacity is improved as well. Based on the experimental results, the mechanism of the concrete column with prestressed steel strip was discussed. The ultimate strength model of the cylinder concrete column with prestressed steel strips under axial compression was proposed, and the calculated value is in good agreement with the experimental value.

Key words: prestressed steel strip, cylindrical concrete column, axial compressive performance, reinforcement technique

CLC Number:

TU375.3

ZHANG Bo, YANG Yong, XIA Zeyu. Axial Compressive Performance of Concrete Column Reinforced by Prestressed Steel Strips[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(7): 2200-2208.

References

[1] 郭俊平,邓宗才,林劲松,等.预应力钢绞线网加固混凝土圆柱的轴压性能[J].工程力学,2014,31(3):129-137.
GUO J P, DENG Z C, LIN J S, et al. Axial compression performance of concrete columns strengthened with prestressed high strength steel wire mesh[J]. Engineering Mechanics, 2014, 31(3): 129-137 (in Chinese).
[2] BUDEK A, LEE C O, PRIESTLEY M J N. Seismic design of circular bridge columns with unstressed prestressing strand for transverse reinforcement[C]. National Seismic Conference on Bridges & Highways, United States: San Francisco CA, 2006.
[3] 郭子雄,曾建宇,黄群贤,等.预应力钢板箍加固RC柱轴压性能试验研究[J].建筑结构学报,2012,33(11):124-131.
GUO Z X, ZENG J Y, HUANG Q X, et al. Experimental study on axial compression behavior of RC columns retrofitted by prestressed steel jackets[J]. Journal of Building Structures, 2012, 33(11): 124-131 (in Chinese).
[4] 郭子雄,黄群贤,郝娟,等.预应力钢套箍加固RC桥墩轴压性能试验研究[J].中南大学学报(自然科学版),2015,46(8):3100-3107.
GUO Z X, HUANG Q X, HAO J, et al. Experimental study on axial compression behavior of RC circular pier retrofitted by prestressed steel jackets[J]. Journal of Central South University (Science and Technology), 2015, 46(8): 3100-3107 (in Chinese).
[5] ANDRAWES B, SHIN M, WIERSCHEM N. Active confinement of reinforced concrete bridge columns using shape memory alloys[J]. Journal of Bridge Engineering, 2010, 15(1): 81-89.
[6] SHIN M, ANDRAWES B. Lateral cyclic behavior of reinforced concrete columns retrofitted with shape memory spirals and FRP wraps[J]. Journal of Structural Engineering, 2011, 137(11): 1282-1290.
[7] 周长东,白晓彬,赵锋,等.预应力纤维布加固混凝土圆形截面短柱轴压性能试验[J].建筑结构学报,2013,34(2):131-140.
ZHOU C D, BAI X B, ZHAO F, et al. Experimental study on circular concrete short columns strengthened with pre-stressed FRP under axial compression[J]. Journal of Building Structures, 2013, 34(2): 131-140 (in Chinese).
[8] 杨勇,薛建阳,黄慧萍,等.建筑中的柱加固方法:CN201010575642.6[P].2010-12-02.
YANG Y, XUE J Y, HUANG H P, et al. Reinforcement method of column in construction: CN201010575642.6[P]. 2010-12-02 (in Chinese).
[9] 张波,杨勇,刘义,等.预应力钢带加固钢筋混凝土柱轴压性能试验研究[J].工程力学,2016,33(3):104-111.
ZHANG B, YANG Y, LIU Y, et al. Experimental study on axial compression performance of reinforced concrete column retrofitted by prestressed steel strip[J]. Engineering Mechanics, 2016, 33(3): 104-111 (in Chinese).
[10] 中华人民共和国住房和城乡建设部.混凝土结构试验方法标准:GB/T 50152—2012[S].北京:中国建筑工业出版社,2012.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Standard test methods for mechanical properties of concrete: GB/T 50152—2012[S]. Beijing: China Architecture Industry Press, 2012 (in Chinese).
[11] 中华人民共和国住房和城乡建设部,国家市场监督管理总局.混凝土物理力学性能试验方法标准:GB/T 50081—2019[S].北京:中国建筑工业出版社,2020.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China, State Administration for Market Regulation. Standard test Methods for mechanical properties of concrete: GB/T 50081—2019[S]. Beijing: China Architecture Industry Press, 2020 (in Chinese).
[12] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2010[S].北京:中国标准出版社,2011.
General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China, Standardization Administration. Tensile testing of metallic materials-part 1: room temperature test methods: GB/T 228.1—2010[S]. Beijing: China Standard Press, 2011 (in Chinese).
[13] 中华人民共和国住房和城乡建设部.混凝土结构试验方法标准:GB/T 50152—2012[S].北京:中国建筑工业出版社,2012.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Standard for test method of concrete structures: GB/T 50152—2012[S]. Beijing: China Architecture Industry Press, 2012 (in Chinese).
[14] 中华人民共和国住房和城乡建设.混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2015.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Code for design of concrete structures: GB 50010—2010[S]. Beijing: China Architecture Industry Press, 2015 (in Chinese).
[15] SAADATMANESH H, EHSANI M R, LI M W. Strength and ductility of concrete columns externally reinforced with fiber composite straps[J]. ACI Structural Journal, 1994, 91(4): 434-447.
[16] MANDER J B, PRIESTLEY M J N, PARK R. Theoretical stress-strain model for confined concrete[J]. Journal of Structural Engineering, 1988, 114(8): 1804-1826.
[17] 腾智明,朱金铨.钢筋混凝土原理和分析[M].北京:中国建筑工业出版社,2002:159-161.
TENG Z M, ZHU J Q. Principle and analysis of reinforced concrete[M]. Beijing: China Architecture Industry Press, 2002: 159-161 (in Chinese).
[18] 腾锦光,陈建飞.FRP加固混凝土结构[M].北京:中国建筑工业出版社,2005:186-189.
TENG J Q, CHEN J F. Reinforced concrete structures strengthened by FRP[M]. Beijing: China Architecture Industry Press, 2005: 186-189 (in Chinese).