钢板网-高性能复合砂浆材料单轴拉伸性能试验研究  

Experimental Research on Uniaxial Tensile Properties of Expanded Steel Mesh with High Performance Cement Composite Mortar

作　　者：马杰 石建光[1] 谢益人 陈周熠[1] 胡红梅[1] MA Jie;SHI Jianguang;XIE Yiren;CHEN Zhouyi;HU Hongmei(School of Architecture and Civil Engineering,Xiamen 361005,China;Xiamen Hordor Architecture&Engineering Design Group Co.,Ltd.,Xiamen 361000,China)

机构地区：[1]厦门大学建筑与土木工程学院,福建厦门361005 [2]厦门合立道工程设计集团股份有限公司,福建厦门361000

出　　处：《工业建筑》2024年第7期232-238,共7页Industrial Construction

基　　金：鼓浪屿历史建筑混凝土构件的修复加固技术研究(XDHT2020145A)。

摘　　要：钢板网(ESM)可改善高性能水泥复合砂浆(HPCCM)的力学性能。通过对ESM网丝试件、ESM三网格试件、ESM-HPCCM哑铃型试件等材料的拉伸性能试验,发现ESM附加进HPCCM,在长节距方向有明显的受力作用,而短节距方向的受力作用很小,经拟合后建立了ESM网丝的拉伸应力-应变模型,并在试验基础上,对ESM-HPCCM的承载力进行了计算分析,提出了ESM-HPCCM沿长节距方向承载力计算方法。将ESM-钢纤维HPCCM视作整体,参考钢纤维混凝土RILEM模型,提出了ESM-HPCCM材料本构模型。Expanded Steel Mesh(ESM)can improve the mechanical properties of High-Performance Cement Composite Mortar(HPCCM).Through the tensile performance tests of ESM wire nets specimens,ESM three-net specimens and ESM-HPCCM dumbbell-shaped specimens,it was found that the ESM attached to HPCCM had an obvious force effect in the long pitch direction,while the force effect in the short pitch direction was less evident.After fitting,the tensile stress-strain constitutive model of ESM mesh was established.Based on the test,the bearing capacity of ESM-HPCCM was calculated and analyzed,and the calculation method of bearing capacity of ESM-HPCCM along the long pitch direction was proposed.The ESM-steel fiber HPCCM was regarded as a whole,and the constitutional model of ESM-HPCCM material was proposed by referring to the RILEM model of steel fiber reinforced concrete.

关 键 词：钢板网 高性能水泥复合砂浆 单轴拉伸 力学性能 

分 类 号：TU578.13[建筑科学—建筑技术科学]