CFRP筋高韧性水泥基复合材料柱抗震性能试验研究  

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

作　　者：姚未来 江世永 飞渭 李雪阳 YAO Weilai;JIANG Shiyong;FEI Wei;LI Xueyang(Department of Military Facility, Army Logistics University of PLA, Chongqing 401311, China;School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China;Unit 93212 of PLA, Dalian 116200, China)

机构地区：[1]陆军勤务学院军事设施系 [2]重庆交通大学土木工程学院 [3]中国人民解放军93212部队

出　　处：《振动与冲击》2019年第9期199-207,共9页Journal of Vibration and Shock

基　　金：重庆市高校优秀成果转化资助重点项目(KJZH14220)

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。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.

关 键 词：CFRP筋高韧性水泥基复合材料柱 抗震性能 剪跨比 轴压比 低周反复荷载试验 

分 类 号：TH113[机械工程—机械设计及理论]