Tests for aseismic performance of CFRP-reinforced high toughness cement matrix composite columns

被引：0
|
作者：
Yao W. [1 ]
Jiang S. [1 ,2 ]
Fei W. [2 ]
Li X. [3 ]
机构：
[1] Department of Military Facility, Army Logistics University of PLA, Chongqing
[2] School of Civil Engineering, Chongqing Jiaotong University, Chongqing
[3] Unit 93212 of PLA, Dalian
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 09期
关键词：
Aseismic performance; Axial compression ratio; CFRP-reinforced high toughness cement matrix composite columns; Low cycle repeated load test; Shear span ratio;
D O I：
10.13465/j.cnki.jvs.2019.09.026
中图分类号：
学科分类号：
摘要：
In order to study aseismic performance of CFRP-reinforced high toughness cement matrix composite columns, 3 short columns with shear span ratio of 3 and 3 long columns with shear span ratio of 5 were designed and fabricated. Low cycle repeated load tests were conducted for them under three kinds of axial compression ratios, and the specimens' failure modes were studied. Their aseismic performances were analyzed from 3 aspects of stiffness degradation, energy dissipation and comprehensive performance index. The test results showed that a large number of transverse cracks appear on specimens in their failure process, but no disintegrate and peeling off phenomena of high toughness cement matrix composite happen, compared with conventional RC columns, they have a higher damage tolerance; for these columns with shear span ratio of 3 and 5, within the range of the axial compression ratio of 0.2-0.5, the larger the shear span ratio or the axial compression one, the better the aseismic performance. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
收藏
页码：199 / 207
页数：8
相关论文
共 14 条
  • [1] Pereira E.B., Fischerg, Barros J.A.O., Direct assessment of tensile stress-crack opening behavior of strain hardening cementitious composites (SHCC), Cement Concrete Research, 42, 6, pp. 834-846, (2012)
  • [2] Li V.C., Engineered cementitious composites-tailored composites through micromechanical modeling, Fiber Reinforced Concrete, 78, 1, pp. 64-87, (1998)
  • [3] Li V.C., Wang S., Wu C., Tensile strain-hardening behavior of polyvinyl alcohol engineered cementitious composite(PVA-ECC), ACI Materials Journal, 98, 6, pp. 483-492, (2001)
  • [4] Tosun-Felekoglu K., Felekoglu B., Ranade R., Et al., The role of flaw size and fiber distribution on tensile ductility of PVA-ECC, Composites: Part B, 56, pp. 536-545, (2014)
  • [5] Pan Z., Wang W., Meng S., Et al., Study on mechanical properties of hybrid PVA fibers reinforced cementitious composites, Journal of Tongji University(Natural Science), 43, 1, pp. 33-40, (2015)
  • [6] Li Q., Xu S., Experimental research on mechanical performance of hybrid fiber reinforced cementitious composites with polyvinyl alcohol short fiber and carbon textile, Journal of Composite Materials, 45, 1, pp. 5-28, (2011)
  • [7] Deng M., Zhang H., Liang X., Et al., Experimental study on seismic behavior of high ductile fiber reinforced concrete short column, Journal of Building Structures, 36, 12, pp. 62-69, (2015)
  • [8] Zhao Y., Wang J., Yu J., Et al., Experimental research on FRP reinforced PPECC axial compression column, China Concrete and Cement Products, 5, pp. 41-45, (2013)
  • [9] Li V.C., Wang S., Flexural behaviors of glass fiber-reinforced polymer (GFRP) reinforced engineered cementitious composite beams, ACI Materials Journal, 99, 1, pp. 11-21, (2002)
  • [10] Fischer G., Li V.C., Deformation behavior of fiber-reinforced polymer reinforced engineered cementitious composite (ECC) flexural members under reversed cyclic loading conditions, ACI Structural Journal, 100, 1, pp. 25-35, (2003)
12