摘要
近年来．道路车辆日趋重型化以及交通量迅猛增长。使桥梁经受的冲击力、荷载疲劳程度及应力超过频率不断提高．桥面铺装层损坏较为严重．桥面铺装往往都出现了早期损坏的通病，桥面上沥青铺筑层比普通路段的路面损坏更为严重普遍。主要为坑槽、拥包、推移等水损害及变形类病害。
In recent years,the road vehicle is getting bigger and heavier with every passing day,and the volume of traffic is swift and violent,which make impingement force to speedway pavement. The fatigue degree and stress of speedway improved crazily,which made the bridge pavement damaged comparatively grave that was more serious than common pavement. After investigating and analyzing the status of Hebei speedway pavement,this article makes evaluation of status and performance of road bridge pavement through different aspects(environmental factors,construction ,design and fi nite element,etc. ). The author analyses the damages causes and form improve method and exact schedule.
出处
《交通世界》
2008年第17期107-111,共5页
Transpoworld
