纤维增强高强钢绞线聚合物砂浆复合层单轴拉伸试验研究
摘要：通过拉伸试验机对高强钢绞线网-纤维增强聚合物砂浆(HSS-FRCM)复合层试件进行静态拉伸力学性能试验，研究短切PP纤维及短切钢纤维增强砂浆对HSS-FRCM复合层单轴拉伸力学性能的影响。结果表明：短切纤维的掺入可有效提高整体复合层的抗拉性能，提高其抗开裂能力，且在未开裂阶段，两种不同纤维的掺入对其抗拉刚度的影响差别较大。
关键词：聚合物砂浆单轴拉伸试验高强钢绞线短切纤维复合层抗拉强度
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[15] ALESSANDRO B,MARCO B,CLAUDIO M.Experimental and numerical evaluation of fiber-matrix interface behaviour of different FRCM systems[J].Composites part B,2019,161.
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[2] CARMELO C,EMMA L,KHALED D,et al.Tensile behaviour of a basalt TRM strengthening system:Influence of mortar and reinforcing textile ratios[J].Composites part B,2017,130:90-102.
[3] 朱忠锋，王文炜.玄武岩格栅增强水泥基复合材料单轴拉伸力学性能试验及本构关系模型[J].复合材料学报，2017,34(10):2367-2374.
[4] 曹忠民，黄金龙，赖恒力.预应力钢绞线网聚合物砂浆加固施工研究进展[J].四川建材，2018,44(7):100-101.
[5] 聂建国，陶巍，张天申.预应力高强不锈钢绞线网-高性能砂浆抗弯加固试验研究[J].土木工程学报，2007(8):1-7.
[6] 毛荣一，罗征，王银辉，等.高强钢绞线网加固混凝土粘结性能试验研究[J].土木建筑与环境工程，2017,39(3):13-19.
[7] 贾天宇.钢丝绳-聚合物砂浆加固剪力墙试验研究[J].江西建材，2015(8):9-10.
[8] 曹忠民，李爱群，王亚勇，等.高强钢绞线网-聚合物砂浆复合面层加固震损梁柱节点的试验研究[J].工程抗震与加固改造，2005,27(6):45-50.
[9] 黄群贤，郭子雄，姚秋来，等.钢绞线网片-聚合物砂浆加固钢筋混凝土梁受弯性能试验研究及破坏机理分析[J].建筑结构学报，2019,40(12):78-87.
[10] 朱俊涛，李燚，王新玲.考虑横向钢绞线影响的钢绞线网/工程水泥基复合材料黏结性能试验研究[J].工业建筑，2018,48(11):143-148.
[11] 黄华，刘伯权，贺拴海，等.高强钢绞线网加固RC梁抗弯性能的数值分析[J].建筑科学与工程学报，2012,29(3):40-48.
[12] 姚秋来，张立峰，姚志华.高强钢绞线网-聚合物砂浆加固RC梁的有限元分析[J].工程抗震与加固改造，2009,31(6):10-14.
[13] LAMPROS N.K,ZOI T,DIONYSIOS A.B,et al.Strengthening of concrete structures with textile reinforced mortars:state-of-the-art review[J].Journal of composites for construction,2019,23(1).
[14] 郑宇宙，王文炜，李剑锋，等.复材格栅-高延性纤维水泥基受拉本构关系模型[J].工业建筑，2016,46(5):12-17.
[15] ALESSANDRO B,MARCO B,CLAUDIO M.Experimental and numerical evaluation of fiber-matrix interface behaviour of different FRCM systems[J].Composites part B,2019,161.
[16] CARMELO C,EMMA L,KHALED D,et al.Tensile behaviour of a basalt TRM strengthening system:Influence of mortar and reinforcing textile ratios[J].Composites part B,2017,130:90-102.
[17] JACOPO D,GIANLUCA C,GIOVANNI L,et al.Tensile behaviour of glass frcm systems with fabrics’ overlap:experimental results and numerical modeling[J].Composite structures,2019,212.
Study on Uniaxial Tensile Test of Polymer Mortar Composite Layer of Fiber Reinforced High-strength Steel Strand
Abstract: Uniaxial tensile test of high strength steel-fiber reinforced cementitous matrix(HSS-FRCM) composite layer is carried out by universal testing machine, and the effects of PP and steel fiber reinforced mortar on the uniaxial tensile mechanical properties of HSS-FRCM composite layer are studied. It is concluded that the incorporation of chopped fibers can effectively improve the tensile properties and crack resistance of the whole composite layer, and in the uncracked stage, the effects of different fibers on its tensile stiffness are quite different.
Keywords: polymer mortar; uniaxial tensile test; high-strength steel strand; chopped fibre; composite; tensile strength
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