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
马杰 1石建光 1谢益人 2陈周熠 1胡红梅1
作者信息
- 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
- 折叠
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.
Abstract
Expanded Steel Mesh(ESM)can improve the mechanical properties of High-Performance Ce-ment 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 atta-ched 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Key words
expanded steel mesh/high-performance cement composite mortar/uniaxial tension/mechanical properties引用本文复制引用
出版年
2024
NETL
NSTL
万方数据