华侨大学叶勇--中文主页-- Flexural performance of stone beams strengthened with prefabricated prestressed CFRP-reinforced stone plates

叶勇(土木工程系副主任)

学位：工学博士学位
职称：教授

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

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Flexural performance of stone beams strengthened with prefabricated prestressed CFRP-reinforced stone plates

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发表刊物：

Journal of Composites for Construction-ASCE

摘要：

A strengthening technique incorporating prefabricated prestressed carbon fiber–reinforced polymer (CFRP) was proposed and evaluated. The flexural performance of bare stone beams strengthened with prefabricated prestressed CFRP-reinforced stone plates was investigated by testing 11 stone beams. The test variables considered involved the diameter and prestress level of the CFRP bars, the reinforcement ratio, and the surface condition of the stone plate. The stress transfer efficiency between different components during the prestressing and strengthening processes was monitored with the aid of strain gauges that were attached to the CFRP bars and stone beams. The monitoring results showed that the CFRP bars prestress could be effectively maintained by the temporary device and then transferred to the stone beam to be strengthened. Further four-point bending tests indicated that the strengthened stone beams exhibited a failure mode with obvious deflection and multiple flexural cracks. The strengthened beams presented three stages of load versus deformation responses and showed significantly higher load-carrying and deformation capacities than the bare stone beams. The flexural behavior of the strengthened stone beams for different parameters was analyzed. Finally, models were proposed to calculate the cracking and ultimate moments, and the initial stiffness of the strengthened stone beams.

论文类型：

期刊论文

页面范围：

2023,27(5):04023042

是否译文：

否

收录刊物：

SCI

合写作者：

苗伟,邱锦华,郭子雄

通讯作者：

叶勇

附件：

Ye et al (2023)-预制预应力CFRP筋增强板加固石梁受弯性能研究.pdf

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个人简介

叶勇，博士，教授，硕士研究生导师。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。

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50余篇，1篇论文获英国土木工程师协会(ICE)年度出版奖。