纤维网格增强混凝土复合材力学性能

Mechanical Properties of Textile Reinforced Concrete Composite Materials

摘要:

纤维网格增强混凝土（TRC）是以纤维编织网格为加强材料，以聚合物砂浆为基体的新型复合材料，其力学性能受到不同纤维网格股数和层数的明显影响。为研究这种新型复合材料的力学性能和与其所加固混凝土间的黏结滑移性能，进行了不同股数和不同层数的纤维网格拉伸试验和TRC复合材拉伸试验，以及不同网格层数的TRC?混凝土界面黏结滑移试验，建立了随层数和股数变化的纤维网格拉伸本构模型、TRC复合材拉伸本构模型、TRC?混凝土界面黏结滑移本构模型，为后续研究和工程应用提供理论依据。

关键词:纤维网格增强混凝土;纤维网格;拉伸试验;黏结滑移试验;本构模型

Abstract:

Textile reinforced concrete （TRC） is a new type of composite material with fiber woven grid as the reinforcing material and polymer mortar as the matrix. Its mechanical properties are obviously affected by the different number of strands and layers of the fiber grids. In order to study the mechanical properties of this new composite material and the bond-slip performance between TRC and the reinforced concrete， tensile tests of fiber mesh and TRC with different strands and layers were carried out， and also TRC-concrete interface bond-slip test with different reinforcement layers. The tensile constitutive model of fiber mesh and TRC that varies with the number of layers and strands， the TRC-concrete interface bond-slip constitutive model is established， which provides the theoretical basis for subsequent research and engineering applications.

Key words:textile reinforced concrete composite（TRC）;fiber mesh;tensile test;bond-slip test;constitutive model