EXPERIMENTAL STUDY ON AXIAL COMPRESSION PERFORMANCE OF SHORT COLUMN COMPOSED OF GFRP TUBE FILLED WITH SELF-COMPACTING AND MICRO-EXPANDED RPC

ZHU Mingqiao; LI Zhi; ZHANG Ziwei

doi:10.13204/j.gyjzG20050301

Volume 51 Issue 5

Sep. 2021

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ZHU Mingqiao, LI Zhi, ZHANG Ziwei. EXPERIMENTAL STUDY ON AXIAL COMPRESSION PERFORMANCE OF SHORT COLUMN COMPOSED OF GFRP TUBE FILLED WITH SELF-COMPACTING AND MICRO-EXPANDED RPC[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(5): 188-195. doi: 10.13204/j.gyjzG20050301

Citation:

ZHU Mingqiao, LI Zhi, ZHANG Ziwei. EXPERIMENTAL STUDY ON AXIAL COMPRESSION PERFORMANCE OF SHORT COLUMN COMPOSED OF GFRP TUBE FILLED WITH SELF-COMPACTING AND MICRO-EXPANDED RPC[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(5): 188-195. doi: 10.13204/j.gyjzG20050301

Citation:

ZHU Mingqiao, LI Zhi, ZHANG Ziwei. EXPERIMENTAL STUDY ON AXIAL COMPRESSION PERFORMANCE OF SHORT COLUMN COMPOSED OF GFRP TUBE FILLED WITH SELF-COMPACTING AND MICRO-EXPANDED RPC[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(5): 188-195. doi: 10.13204/j.gyjzG20050301

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EXPERIMENTAL STUDY ON AXIAL COMPRESSION PERFORMANCE OF SHORT COLUMN COMPOSED OF GFRP TUBE FILLED WITH SELF-COMPACTING AND MICRO-EXPANDED RPC

doi: 10.13204/j.gyjzG20050301

1. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
2. Hunan Engineering Research Center for Intelligently Prefabricate Passive House, Xiangtan 411201, China

Received Date: 2020-05-03
Available Online: 2021-09-16
Publish Date: 2021-09-16

Abstract

Abstract

A kind of self-compacting micro-expanded reactive powder concrete (RPC) with high performance and high strength was prepared. The RPC was cured at conventional temperature and its fluidity was greater than 255 mm. The RPC was filled into glass fiber-reinforced plastic (GFRP) tubes. The axial compression performance tests of GFRP tube filled with self-compacting micro-expaned RPC tube filled with short column were carried out. The axial compression performance tests of GFRP tube filled with self-compacting micro-expanded RPC short column were carried out. The effects of design parameters such as GFRP tube forming process, concrete expansion agent and the stress mode of members on the mechanical properties of the structure were considered in the tests. The failure mode, stress-strain curve and member bearing capacity were analyzed emphatically. The results showed that the mechanical properties of GFRP tube RPC short column with GFRP filament wound ±45° were the best, and the stress-strain curve of the composite column increased in a quadratic linear manner. When the composite column was damaged, the GFRP fibers were broken and the confined concrete in the tube was crushed. Its ultimate bearing capacity was about 1.6 times that of the unconstrained RPC short column. The concrete expansion agent improved the deformability of the combined short column, and its ultimate strain was about 1.4 times that of the column without the expansion agent. The theoretical calculation model of Teng was suitable for the GFRP tube filled with self-compacting micro-expaned RPC short column under full-section compression.
- self-compacting micro-expanded,
- reactive powder concrete,
- GFRP tube,
- forming process,
- axial compression

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References(15)

References

[1]	MIRMIRAN A, SHAHAWY M. A New Concrete-Filled Hollow FRP Composite Column[J]. Composites Part B:Engineering, 1996, 27(3/4):263-268.
[2]	滕锦光.新材料组合结构[J]. 土木工程学报, 2018, 51(12):1-11.
[3]	曾翔, 邹娟, 姜宝石, 等.FRP管活性粉末混凝土柱研究展望[J]. 工业建筑, 2016(增刊2):683-686, 657.
[4]	郑文忠, 吕雪源.活性粉末混凝土研究进展[J]. 建筑结构学报, 2015, 36(10):44-58.
[5]	戎芹, 曾宇声, 侯晓萌, 等. 圆钢管钢纤维活性粉末混凝土短柱轴压性能试验研究[J]. 建筑结构学报, 2019, 40(3):247-253.
[6]	罗华, 季文玉, 闫志刚, 等.加载方式对钢管活性粉末混凝土短柱抗压性能影响的研究[J]. 铁道学报, 2015, 36(9):105-110.
[7]	林震宇, 吴炎海, 沈祖炎. 圆钢管活性粉末混凝土轴压力学性能研究[J]. 建筑结构学报, 2005, 26(4):52-57.
[8]	吴捧捧. 自密实钢管RPC柱基本力学性能研究[D]. 北京:北京交通大学, 2010.
[9]	AMRAN Y H M, ALYOUSEF R, RASHID R S M, et al. Properties and Applications of FRP in Strengthening RC Structures:A Review[C]//Structures. Elsevier, 2018, 16:208-238.
[10]	范向前, 刘决丁, 胡少伟, 等.FRP加固混凝土研究现状与展望[J]. 混凝土, 2019(12):156-160.
[11]	ALI T K M, RIDHA M M S, ASAAD Z, et al. Comparison Study of Axial Behavior of RPC-CFRP Short Columns[J]. Journal of Materials and Engineering Structures, 2015, 2(2):57-67.
[12]	赵悦. FRP管活性粉末混凝土柱抗震性能非线性分析[D]. 哈尔滨:黑龙江大学, 2016.
[13]	FENG P, CHENG S, BAI Y, et al. Mechanical Behavior of Concrete-Filled Square Steel Tube with FRP-Confined Concrete Core Subjected to Axial Compression[J]. Composite Structures, 2015, 123:312-324.
[14]	TENG J G, JIANG T, LAM L, et al. Refinement of a Design-Oriented Stress-Strain Model for FRP-Confined Concrete[J]. Journal of Composites for Construction, 2009, 13(4):269-278.
[15]	LAM L, TENG J G. Design-Oriented Stress-Strain Model for FRP-Confined Concrete in Rectangular Columns[J]. Journal of Reinforced Plastics and Composites, 2003, 22(13):1149-1186.