玄武岩纤维布的力学性能和强度利用率研究  

RESEARCH ON MECHANICAL PROPERTIES AND STRENGTH EFFICIENCY OF BASALT FIBER FABRIC-REINFORCED EPOXY COMPOSITES

作　　者：黄镜渟 周安[1,2] 詹炳根 朱大勇[3] 李涛 戴良军 崔林钊[4] HUANG Jingting;ZHOU An;ZHAN Binggen;ZHU Dayong;LI Tao;DAI Liangjun;CUI Linzhao(School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;School of Civil Engineering & Architecture,Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China;Anhui Key Laboratory of Civil Engineering and Materials ,Hefei 230009,China;Anhui Construction Engineering Group Limited Company,Hefei 230001,China)

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009 [2]土木工程结构与材料安徽省重点实验室,合肥230009 [3]浙江大学宁波理工学院土木建筑工程学院,浙江宁波315100 [4]安徽建工集团有限公司,合肥230001

出　　处：《工业建筑》2019年第3期1-5,共5页Industrial Construction

基　　金：安徽省自然科学基金项目(1408085MKL14);合肥工业大学技术开发项目(W2016JSKF0078)

摘　　要：针对不同生产厂家、不同编织方式、不同单位面积质量的玄武岩纤维布,开展市场抽样并分成10个试验组。对其进行复合材料拉伸性能试验,获得抗拉强度、弹性模量、伸长率及应力-应变关系等力学性能参数。随后采用其中单向、双向布各一组进行外包加固素混凝土柱的轴压试验,重点分析破坏时环向断裂应变与材性试验极限应变的比值。研究表明:单向布的力学性能及质量稳定性良好且优于双向布,双向布的抗拉强度标准值较单向降低了25%左右;玄武岩纤维布强度利用率随着层数的增加而增加,与编织方式无关;1层、2层加固素混凝土方柱的有效应变系数分别约为21%、40%,加固圆柱分别约为31%、48%。For different weaving methods, different mass per unit area , different manufacturers of basal I fiber fabric reinforced (BFRP ), the sampling survey was conducted and 10 experimental groups were made. The tensile strength, elastic modulus , elongation and stress-strain relationship of BFRP composites were obtained by tensile tests. Then two groups of unidirectional and bidirectional fabric composites were selected and used for the axial compression test of confined concrete cylinders. The results showed that: the mechanical properties and quality stability of unidirectional fabric was well and superior to that of bidirectional fabric. The standard tensile strength of bidirectional fabric composite was 25% lower than that of unidirectional fabric.With same layers, the effect of weaving method had little effect on the strength efficiency of composite materials, and the strength efficiency increased with the increase of confined layers. The efficiency strain factors of single-layer and double-layer of basalt fiber fabric composite confined concrete square columns were 21 % and 40% and confined concrete cylinders were 31 % and 48%.

关 键 词：玄武岩纤维布 力学性能 试验研究 强度标准值 强度利用率 

分 类 号：TU599[建筑科学—建筑技术科学]