EXPERIMENTAL STUDY OF THE INFLUENCE OF COVERED WAYS AND STRIP SPACE ON THE MECHANICS CHARACTER OF THE BFRP-PVC CONFINED SELF-COMPACTING RECYCLED CONCRETE SHORT-COLUMN

Abstract

Abstract: A total of 27 BFRP-PVC confined self-compacting recycled concrete short-columns with different wrapped ways and strip interval were tested under axial compression to study the influence of the wrapped ways, strip intervals and failure patterns on carrying capacity and deformation capacity of the BFRP-PVC specimen. The experimental results show that when the whole layers is same, the strength improvement rate and deformation capacity of specimen entirely wrapped at the inner layer along the PVC tube were obviously better than that of specimen wrapped with strip interval way along the PVC tube, and the strength improvement rate of Z1BS series of specimens is better than that of Z2BS series of specimens. The outside strip interval distance has certain influence on the carrying capacity, and the influence degree is related with the wrapped ways. The deformation capacity of BFRP-PVC confined self-compacting recycled concrete short-column is obviously better than PVC confined self-compacting recycled concrete short-column, and the deformation capacity of short-column entirely wrapped at the inner layer is better than that of short-column wrapped with entirely strip interval way. Besides, the deformation capacity of Z2BS series of specimens is better than that of Z1BS series of specimens.

Key words: entirely wrapped, strip interval, self-compacting recycled concrete, BFRP-PVC tube, axial compression test

CLC Number:

TB332
TU317

REN Li-li , WANG Xue-zhi, ZHANG Hao-feng, ZHANG Yu-mei. EXPERIMENTAL STUDY OF THE INFLUENCE OF COVERED WAYS AND STRIP SPACE ON THE MECHANICS CHARACTER OF THE BFRP-PVC CONFINED SELF-COMPACTING RECYCLED CONCRETE SHORT-COLUMN[J]. Fiber Reinforced Plastics/Composites, 2016, 0(7): 53-59.

References

[1] 于峰, 牛荻涛, 武萍. PVC-FRP管混凝土结构实际应用的可行性研究[J]. 建筑科学, 2007, 23(11) : 102-104, 62.
[2] 滕锦光, 陈建飞, 史密斯, 等. FRP加固混凝土结构[M]. 北京: 中国建筑工业出版社, 2005.
[3] 姜绍飞, 吴兆旗, 杨启斌, 等. FRP约束的新型组合结构力学性能研究[J]. 哈尔滨工业大学学报, 2010, 42 (S1): 61-67.
[4] Hollaway, L. C. A review of the present and future utilization of FRP composites in the civil infrastructure with reference to their important in-service properties[J]. Construction and Building Materials, 2010, 24(12): 2419- 2445.
[5] Xiao Y, Ma R. Seismic retrofit of RC circular columns using prefabricated composite jacketing[J]. Journal Structural Engineering,1997,123(10):1357-1364.
[6] 于峰. PVC-FRP管混凝土柱力学性能的试验研究与理论分析[D]. 西安: 西安建筑科技大学, 2007.
[7] 于峰, 武萍. 新型组合结构柱性能研究[J]. 工业建筑, 2009, 39(2) : 97- 99.
[8] Ranney T. A., Louise V. P.. Susceptibility of ABS, FEP, FRE, FRP, PTFE, and PVC well casings to degradation by chemicals[R]. No. CRREL-SR-95-1. Cold Regions Research and Engineering Lab Hanover NH, 1995.
[9] 王毅. 腐蚀环境中FRP长期力学性能研究[D]. 西安: 西安建筑科技大学, 2012.
[10] 于峰, 牛荻涛. FRP材料耐久性试验研究[J]. 玻璃钢/复合材料, 2008(6): 22-23.
[11] 于峰, 牛荻涛. PVC-CFRP管钢筋混凝土轴压短柱试验研究[J]. 建筑结构学报, 2013, 34(6): 129-136.
[12] 王忠文. 轴压 PVC- FRP管混凝土短柱力学性能研究[D]. 西安: 西安建筑科技大学, 2008.
[13] 麻胜兰, 姜绍飞. CFRP-PVC管混凝土轴压中长柱承载力研究[J]. 土木工程学报, 2014, 41(1): 99-106.
[14] 黎德光. 偏压PVC-FRP管钢筋混凝土柱力学性能研究[D]. 马鞍山: 安徽工业大学, 2013.
[15] 杨洋. 不同材料约束混凝土轴压短柱的试验研究[D]. 广州: 广东工业大学, 2008.
[16] 白国良, 刘超, 张锋剑. 再生混凝土结构基本受力行为研究[R]. 西安: 西安建筑科技大学, 2009.
[17] Esaki F. Elastic-plastic behavior of recyclable R/C columns[J]. Transactions of the Japan Concrete Institute, 1999, 20: 301-308.
[18] 柳炳康, 陈丽华, 周安, 等. 再生混凝土框架梁柱中节点抗震性能试验研究[J]. 建筑结构学报, 2011, 32(11): 109-115.
[19] 赵筠. 自密实混凝土的研究和应用[J]. 混凝土, 2003, (6): 9-17.