摘要： <正>在汇总分析最近3年来运营的高速公路桥梁养护质量监督检查资料的基础上，就高速公路主要桥梁结构型式和特点，分类阐述了4种桥型梁体存在的主要缺陷、危害，分析了各缺陷产生的原因，提出了缺陷预防方向和处置方法。

Abstract: The study was based on the data of highway bridge management and supervision system in last three years. The defects and the harm to the bridge girder was summarized in four types of girder bridge. The cause of each defect was analyzed and the preventive treat- ments was proposed.

中图分类号: 

• U445.7