CFRP筋高韧性水泥基复合材料柱抗震性能试验研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (9) : 199-207.

论文

姚未来 1 ，江世永 1,2 ，飞渭 2 ，李雪阳 3

作者信息 +

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

YAO Weilai1, JIANG Shiyong1,2,FEI Wei2, LI Xueyang3

Author information +

文章历史 +

摘要

为研究CFRP筋高韧性水泥基复合材料柱的抗震性能，设计制作了3根剪跨比为3的短柱和3根剪跨比为5的长柱，在3种轴压比下进行了低周反复荷载试验，研究了试件的破坏形态，并通过刚度退化、耗能性能以及综合性能指标等方面分析了其抗震性能。试验结果表明：试件在破坏过程中生成大量横向裂缝，没有出现高韧性水泥基复合材料崩裂和剥落的现象，与以往的普通钢筋混凝土柱相比，表现出更高的破坏容许度；对于剪跨比为3和5的CFRP筋高韧性水泥基复合材料柱，在试验轴压比为0.2~0.5的范围内，剪跨比越大或轴压比越大，其抗震性能越好。

Abstract

In order to study the seismic behavior of CFRP reinforced high toughness cementitious composite columns, three short columns with shear span ratio of 3 and three long columns with shear span ratio of 5 were designed and subjected to horizontal cyclic loading test under three kinds of axial compression ratios, the failure pattern was studied, and the seismic performance was analyzed through stiffness degradation, energy dissipation and comprehensive performance index. The research shows that the specimens generated a large number of horizontal cracks in the failure process, and there is no phenomenon of cracking and peeling of high toughness cementitious composite, which shows a higher damage tolerance compared with the conventional reinforced concrete columns. For the CFRP reinforced high toughness cementitious composite columns with shear span ratio of 3 and 5, the greater the shear span ratio or the axial compression ratio, the better the seismic performance in the test axial compression ratio of 0.2~0.5.

导出引用

姚未来 1,江世永 1,2,飞渭 2,李雪阳 3. CFRP筋高韧性水泥基复合材料柱抗震性能试验研究[J]. 振动与冲击, 2019, 38(9): 199-207

YAO Weilai1, JIANG Shiyong1,2,FEI Wei2, LI Xueyang3. Tests for aseismic performance of CFRP-reinforced high toughness cement matrix composite columns[J]. Journal of Vibration and Shock, 2019, 38(9): 199-207

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