Experimental Research on Axial Compression Performance of Large-scale HSC-filled RPC Tube
SHAN Bo1, LAI Dade1, LIU Fucai2
1 China Ministry of Education Key Laboratory of Building Safety and Energy Efficiency, Hunan University,Changsha 410082; 2 Guangdong Liying Investment Group Co., Ltd., Qingyuan 511600
Abstract: Concrete-filled reactive powder concrete tube (CFRT) is an innovative composite structure based on confinement effect. Reactive powder concrete (RPC) tube filled with high-strength concrete (HSC) core, named RPC-HSC composite column, was investigated in this work. The mixture ratio of RPC for precast spun tube were investigated and all RPC tubes in the test were manufactured by spinning process in factory. Axial compression tests were carried out on 4 groups of large-scale CFRT columns and one group of steel-confined HSC columns. The results showed that in the whole compression process, the RPC tube of CFRT column with inner HSC was in good condition, and displayed better compression performance than the control columns. The increment of inner concrete's strength led to increasing compressive strength of the CFRT column, but a gradually decline of the confinement effect, which suggested the necessity of strength limitation on the internal concrete for CFRT column. The longitudinal reinforcement in the inner concrete has little effect on the ductility of the CFRT columns. Based on the Mander (1988) model, we proposed a calculation method for the carrying capacity of CFRT column filled with HSC, and the predictions by this method coincided well with the experimental results.
1 Xiao C Z, Wang C K, Huang X K. Progresses and perspectives of high-rise building research in China academy of building research[J]. Building Sci, 2013, 29(11):11(in Chinese). 肖从真, 王翠坤, 黄小坤. 中国建筑科学研究院高层建筑结构研究发展与展望[J]. 建筑科学, 2013,29(11):11. 2 Zhong S T. The concrete-filled steel tubular structures[M]. Beijing: Tsinghua University press, 2003(in Chinese). 钟善桐. 钢管混凝土结构[M]. 北京:清华大学出版社, 2003. 3 Ye L P, Feng P. Applications and development of fiber-reinforced polymer in engineering structures[J]. China Civil Eng J, 2006, 39(3):24(in Chinese). 叶列平, 冯鹏. FRP在工程结构中的应用与发展[J].土木工程学报, 2006, 39(3):24. 4 Shi Q X, Yang K, Bai L G, et al. Experiments on seismic behavior of high-strength concrete columns confined with high-strength stirrups[J]. China Civil Eng J, 2011, 44(12):9(in Chinese). 史庆轩, 杨坤, 白力更, 等. 高强箍筋约束高强混凝土柱抗震性能试验研究[J]. 土木工程学报, 2011, 44(12):9. 5 Huo J, Huang G, Xiao Y. Effects of sustained axial load and cooling phase on post-fire behavior of concrete-filled steel tubular stub co-lumns[J]. J Constr Steel Res, 2009, 65(8):1664. 6 Han L H, Hou C C, Wang Q L. Behavior of circular CFST stub co-lumns under sustained load and chloride corrosion[J]. J Constr Steel Res, 2014, 103:23. 7 Hawileh R A, Abu-obeidah A, Abdalla J A, et al. Temperature effect on the mechanical properties of carbon, glass and carbon-glass FRP laminates[J]. Constr Build Mater, 2015, 75:342. 8 Firmo J P, Correia J R, Bisby L A. Fire behaviour of FRP-streng-thened reinforced concrete structural elements: A state-of-the-art review[J]. Composites Part B Eng, 2015, 80:198. 9 Mander J B, Priestley M J N, Park R. Observed stress-strain beha-vior of confined concrete[J]. J Struct Eng, 1988, 114(8):1827. 10 Saatcioglu M, Razvi S R. Strength and ductility of confined concrete[J]. J Struct Eng, 1992, 118(6):1590. 11 Wang J P, Liu J H, Hou X F. Thoughts on Corrosion protection of offshore islands and reefs[C]∥Proceedings of the National Symposium on Corrosion and Protection of Marine Engineering in 2015. Haikou, 2015: 1(in Chinese). 王建平, 刘锦红, 侯晓峰. 关于远洋岛礁工程腐蚀防护问题的思考[C]∥2015年全国海洋工程腐蚀与防护技术研讨会论文集. 海口, 2015:1. 12 Richard P, Cheyrezy M. Composition of reactive powder concretes[J]. Cem Concrete Res, 1995, 25(7):1501. 13 Richard P. Reactive powder concrete: A new ultra-high-strength cementitious material[C]∥4th International Symposium on Utilization of High Strength. High Performance Concrete. Paris, France: Presses des Ponts et Chaussees, 1996:1343. 14 Bayard O. Fracture mechanics of reactive powder concrete: Material modeling and experimental investigations[J]. Eng Fract Mech, 2003, 70(7-8), 839. 15 Geng C L, Xu L, Chen H Y, et al. On research progress and application of reactive powder concrete[J]. Mater Rev:Rev, 2012,26(5):70(in Chinese). 耿春雷, 许零, 陈红岩, 等. 活性粉末混凝土的研究与工程应用进展[J]. 材料导报:综述篇, 2012,26(5):70. 16 Chen B C, Ji T, Huang Q W, et al. Review of research on ultra-high performance concrete[J]. J Archit Civil Eng, 2014,31(3):1(in Chinese). 陈宝春, 季韬, 黄卿维, 等. 超高性能混凝土研究综述[J]. 建筑科学与工程学报, 2014,31(3):1. 17 Deng Z C, Xiao R, Shen C L. A review on preparation and properties of ultra-high performance concrete[J]. Mate Rev, 2013,27(9):66(in Chinese). 邓宗才, 肖锐, 申臣良. 超高性能混凝土的制备与性能[J]. 材料导报, 2013,27(9):66. 18 Yang X, Zohrevand P, Mirmiran, A. Behavior of ultra-high performance concrete confined by steel[J]. J Mater Civ Eng, 2016,28(10):04016113. 19 Zou H H, Chen W X, Jiang M. Research status of the mechanical properties of RPC filled steel tube column and limit analysis[J]. Concr, 2016(2):29(in Chinese). 邹慧辉, 陈万祥, 姜猛. 钢管RPC柱的力学性能及极限分析研究现状[J]. 混凝土, 2016(2):29. 20 Shan B, Liu Z, Xiao Y, et al. Experimental research on composite action of concrete-filled RPC tube under axial load[J]. J Hunan University (Natural Sciences), 2017,44(3):88(in Chinese). 单波, 刘志, 肖岩, 等. RPC预制管混凝土组合柱组合效应试验研究[J]. 湖南大学学报(自然科学版), 2017,44(3):88. 21 Liu Z. Experimental research on seismic behavior of concrete-filled RPC tube[D]. Changsha: Hunan University, 2016(in Chinese). 刘志.RPC预制管混凝土组合柱抗震性能试验研究[D].长沙:湖南大学,2016. 22 中华人民共和国国家标准. GB/T 50152-2012混凝土结构试验方法标准[S]. 北京: 中国标准出版社, 2012, 18. 23 Wang L M, Wu Y F. Effect of corner radius on the performance of CFRP-confined square concrete columns: Test. Eng Struct, 2008, 30(2): 493. 24 Mander J B, Priestley M J N, Park R. Theoretical stress-strain model for confined concrete[J]. J Struct Eng, 1988, 114(8):1804.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2017, Vol. 31 
