FRP材料型桥梁隧道结构抗老化控制及抗腐蚀性研究  

Research on Anti-aging Control and Corrosion Resistance of FRP Bridge Tunnel Structure

作　　者：潘子叶 Pan Ziye(Henan Transportation Development Group Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]河南省交通运输发展集团有限公司,郑州450000

出　　处：《粘接》2021年第12期192-196,共5页Adhesion

摘　　要：为解决桥梁隧道随使用时间的延长,出现的严重老化及被腐蚀的问题,针对FRP材料型桥梁隧道结构的抗老化控制及抗腐蚀性研究。根据结构化方程,确定桥梁隧道主体的老化周期及特性,并以此为基础,建立有限元抗老化控制模型,完成FRP材料型桥梁隧道结构的抗老化控制。通过检测桥梁尺寸和结构材料的方式,计算腐蚀性离子的含量水平,并且按照配合比设计指标的实际数值结果,实现针对FRP材料型桥梁隧道结构的抗腐蚀特性分析。实例分析结果表明,在力学载荷作用强度相同的情况下,增大混凝土段长度的同时,缩小水胶比数值,是避免桥梁隧道出现严重老化及被腐蚀问题,并最大化延长其使用时间的有效方法。With the extension of service time,bridge tunnel has serious aging and corrosion problems,thus it is necessary to study the anti-aging control and corrosion resistance of FRP bridge tunnel structure.First of all,structured equation is used to determine the aging period and characteristics of the main body of bridge tunnel.And on this basis,a finite element anti-aging control model is established to complete the anti-aging control of the FRP bridge tunnel structure.Then,the size of the bridge and the structural material are detected to calculate the content level of corrosive ions,and the corrosion resistance characteristics of the FRP bridge tunnel structure are analyzed according to the actual numerical results of mix ratio design index.Finally,the case analysis results show that under the same strength of mechanical load,increasing the length of the concrete section and reducing the value of the water-binder ratio are the effective method to avoid serious aging and corrosion problems of bridge tunnels,and to maximize their service time.

关 键 词：FRP材料 桥梁隧道结构 抗老化 抗腐蚀性 有限元模型 离子含量 

分 类 号：U441[建筑科学—桥梁与隧道工程]