摘要
为推进国省干线公路桥梁预防性养护技术的应用,基于江苏省镇江市主要国省干线公路桥梁现场检测情况,开展关于桥梁数量、桥型、技术状况和病害的统计分析,建立了桥梁技术状况随时间的历史变化模型。采用分层评定法确定了预防性养护的病害范畴。研究结果表明:镇江市主要国省干线公路桥梁目前的技术状况为开展预防性养护提供了良好的基础;以非线性指数型退化模型作为预测桥梁结构寿命的依据,具有较好的适用性;将预防性养护的对象确定为技术状况为Ⅰ类和Ⅱ类的桥梁,进而可以确定属于预防性养护范畴的病害类型。
In order to promote the application of preventive maintenance technology.Firstly,based on the field test of national and provincial trunk highway bridges in Zhenjiang,the statistical analysis of the number,type,technical state and diseases of bridges are carried out.Then,a historical model of bridge technology over time is established to predict the future of bridge technology.Finally,the preventive maintenance disease category is determined.The results show that the present status of national and provincial trunk highway bridges in Zhenjiang provide a good foundation for preventive maintenance.The nonlinear exponential degradation model can be used for the prediction of bridge structure life conveniently.If the objects of preventive maintenance of bridges are defined as bridges with classⅠor classⅡ,the diseases belonging to preventive maintenance can be identified.
作者
嵇业超
王亚奇
丁文胜
管亚舟
焦阳
JI Yechao;WANG Yaqi;DING Wensheng;GUAN Yazhou;JIAO Yang(Zhenjiang Highway Administration,Zhenjiang 212002,China;College of Civil Engineering,Nanjing Tech University,Nanjing 211816,China)
出处
《现代交通技术》
2019年第3期46-50,共5页
Modern Transportation Technology
关键词
公路桥梁
预防性养护
技术状况预测模型
病害
highway bridge
preventive maintenance
technical state prediction model
diseases
作者简介
第一作者:嵇业超(1975-),男,工程师,主要从事交通工程养护管理工作。
