预应力碳纤维板在桥梁加固工程中的应用  

The Application of Prestressed Carbon Fiber Plate in Bridge Reinforcement Project

作　　者：张锦涛 赵琼琳 Zhang Jintao;Zhao Qionglin(Shandong Provincial Communications Planning and Design Institute Group Co.,Ltd.,Jinan,China)

机构地区：[1]山东省交通规划设计院集团有限公司,山东济南

出　　处：《科学技术创新》2025年第8期98-101,共4页Scientific and Technological Innovation

摘　　要：为了提高桥梁的承载力、延长其使用寿命,文章以某预应力混凝土T梁桥为例,针对桥梁长期服役中出现的裂缝、挠度增大和疲劳破坏等病害,采用预应力碳纤维板加固,通过有限元模拟和现场监测对加固效果进行了系统分析。结果表明,加固后的桥梁在静载和动载条件下的刚度显著提高,跨中挠度和应力集中均明显减小,结构耐久性和安全性得到了有效提升,为类似桥梁加固工程提供了参考和借鉴。In order to improve the bearing capacity of the bridge and prolong its service life,this paper takes a prestressed concrete T-beam bridge as an example.Aiming at the diseases such as cracks,deflection increase and fatigue damage in the long-term service of the bridge,the prestressed carbon fiber plate is used to reinforce the bridge.The reinforcement effect is systematically analyzed by finite element simulation and field monitoring.The results show that the stiffness of the reinforced bridge under static and dynamic load conditions is significantly improved,the mid-span deflection and stress concentration are significantly reduced,and the durability and safety of the structure are effectively improved,which provides reference for similar bridge reinforcement projects.

关 键 词：桥梁加固 预应力碳纤维板 结构耐久性 承载力 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]