摘要
针对影响桥梁使用和维修保养的桥面铺装层问题,研究分析了装配式预应力混凝土空心板桥面混凝土铺装层的纵桥向裂缝、横桥向裂缝、龟裂、松散剥落及伸缩缝处破坏等常见病害的产生机理,提出了相应的设计与施工措施.概括总结了钢纤维混凝土、合成纤维混凝土、混杂纤维混凝土和钢纤维轻混凝土在桥面铺装层中的研究成果,列举了几个需要进一步深入研究的课题.
For the problems of bridges＇ pavement which affect use,safeguard and maintenance of bridges,the common disease mechanisms of pavement of package prestressed concrete hollow plate bridges are analyzed,which include the longitudinal and transverse cracks along bridge,the polygonal cracks,the loose and exfoliation as well as the damage at expansion joint,and so on.The relating design and construction measures are suggested.The status of research and application of synthetic fiber reinforced concrete,composite fiber reinforced concrete,and steel fiber reinforced lightweight concrete,in bridge pavement,are summarized.Some research problems needed to be further studied are listed.
出处
《华北水利水电学院学报》
2010年第1期33-36,共4页
North China Institute of Water Conservancy and Hydroelectric Power
基金
郑州市科技发展计划项目(2007-06-34)
河北省水利水电第二勘测设计研究院南水北调中线工程设计科研项目
关键词
空心板桥
桥面铺装层
病害防治
纤维混凝土
研究及进展
hollow plate bridge
pavement
preventive treatment of disease
synthetic fiber reinforced concrete
research and development
