预应力碳纤维板在预应力桥梁加固中的应用  

Application of Prestressed Carbon Fiber Plate in Reinforcement of Prestressed Concrete Bridge

作　　者：段艳菊 秦爱红 DUAN Yanju;QIN Aihong

机构地区：[1]大连市市政设计研究院有限责任公司,辽宁大连116021 [2]青岛城市学院,山东青岛266000

出　　处：《城市道桥与防洪》2024年第10期297-299,304,M0027,共5页Urban Roads Bridges & Flood Control

摘　　要：结合工程实例,从设计角度介绍了预应力碳纤维板加固方法在预应力桥梁加固中的应用,并通过有限元计算软件,对比分析加固前后桥梁正常使用极限状态的应力情况和承载能力极限状态下的承载能力,验证了此种加固方法在控制桥梁开裂和提升结构承载能力方面效果显著,在预应力桥梁加固中是一种有效的方法。Combined with an engineering example,the application of the reinforcement method of prestressed carbon fiber plate in the reinforcement of prestressed bridge is introduced from the design perspective.Then through the finite element calculation software,the stress situation in the normal service limit state of the bridge before and after reinforcement and the load-bearing capacity in the limit state of the load-bearing capacity are compared and analyzed to verify the significant effects of this reinforcement method in controlling the bridge cracking and improving the structural load-bearing capacity.It is an effective method in the reinforcement of prestressed bridges.

关 键 词：预应力碳纤维板加固 抗裂 承载能力 预应力桥梁 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]