华侨大学叶勇--中文主页-- Flexural behavior of stone slabs reinforced with prestressed NSM CFRP bars

叶勇(土木工程系副主任)

学位：工学博士学位
职称：教授

博士生导师

硕士生导师

学位：工学博士学位
办公地点：土木学科实验大楼505办公室
电子邮箱：
职务：土木工程系副主任

学科：结构工程

当前位置: 中文主页 >> 科学研究 >> 论文成果

Flexural behavior of stone slabs reinforced with prestressed NSM CFRP bars

点击次数：

发表刊物：

Journal of Composites for Construction-ASCE

摘要：

A technique for reinforcing stone slabs with prestressed near-surface mounted (NSM) carbon fiber–reinforced polymer (CFRP) bars is proposed and investigated in this research. Six stone slabs were tested under monotonic loading. Among these slabs, one served as a control slab and was not reinforced, and two were reinforced with one or two NSM CFRP bars, and each bar was prestressed to 30% of the bar's ultimate strength. The remaining three were reinforced with three NSM CFRP bars that had been prestressed to 0, 15, or 30% of the bar's ultimate strength. The test results indicate that reinforcement with either prestressed or nonprestressed NSM CFRP bars shifted the failure mode of the stone slabs from abrupt fracture to a more ductile flexural failure. A remarkable improvement in the flexural response was obtained when the stone slabs were reinforced with prestressed NSM CFRP bars. In addition to exhibiting a higher cracking load, the stone slabs that had been reinforced with prestressed NSM CFRP bars exhibited cracks with a smaller width, and the strength utilization ofthe CFRP reinforcement was much higher compared to that of the nonprestressed reinforced slabs. An analytical model was developed based on a sectional analysis method to predict the flexural response of stone slabs reinforced with prestressed NSM CFRP bars. The predicted values show good agreement with the experimental results.

论文类型：

期刊论文

页面范围：

2014,18(4):04014004

是否译文：

否

收录刊物：

SCI

第一作者：

叶勇

合写作者：

柴振岭

通讯作者：

郭子雄

附件：

Ye et al (2014)-Flexural behavior of stone slabs reinforced with prestressed NSM CFRP bars.pdf

上一条：双金属复合管混凝土构件受弯滞回性能研究

下一条：不锈钢管约束混凝土短柱轴压性能试验

个人简介

叶勇，博士，教授，博士生导师，华侨大学承志学者。现任华侨大学土木工程学院土木工程系副主任、现代组合结构和抗震防灾创新团队党支部书记。获评华侨大学“学生最喜爱的教师”。

从事结构工程方向的教学与研究工作，主持国家自然科学基金项目2项(面上、青年各1项)、福建省自然科学基金面上项目2项、中国博士后科学基金项目1项、福建省高校青年自然基金重点项目1项等科研项目。在国内外主流学术期刊及会议上发表论文100余篇，其中SCI、EI收录近60篇，1篇论文获英国土木工程师协会(ICE)年度出版奖。