原文传递
Influence of Heavy Trucks on Highway Bridges; Final rept. Sep 99-Oct 00
| 题名： | Influence of Heavy Trucks on Highway Bridges; Final rept. Sep 99-Oct 00 |
| 作者： | Wang, T. L.; Liu, C. |
| 关键词： | Heavy duty vehicles; Highway bridges; Fatigue; Pavement surface texture; Vehicle weight; Bridges; Dynamic loads; Axle loads; Surface roughness; Data collection; Damage; Statistical data; Graphs(Charts) |
| 摘要： | Truck traffic data collected by Florida Department of Transportation (FDOT) statistics office are grouped into according to their types and loading condition (loaded or empty). Mean values of truck axle weight and spacing are used to represent their average effects on bridge structures. The mathematical models of typical trucks with significant counts are established and the input data are derived from the synthesized results. These typical trucks include types 5, 8, 9, and 10. Road surface roughness is generated as multi-correlated random processes. According to the research by Honda et al., the coefficient of correlation is approximately taken as a constant. Static effects of the heavy trucks are compared with those of the standard design truck HS20-44. The tandem axle weights of the heavy trucks are found to be higher than that of HS20-44 and exceed the limit by AASHTO Guide. Dynamic impact factors of moment at midspan and shear at end are analyzed for I-girder steel and prestressed concrete bridges ranging from 9.14m (30 ft) to 42.67m (140 ft.) Effects of correlation of road surface roughness on dynamic impact factors are investigated. Fatigue accumulation damage incurred by the normal traffic at sites with significant counts is performed. |
| 总页数： | 190p |
| 报告类型： | 科技报告 |
相关文献
- Quick Response Community Planning; Final technical rept. Aug 99-Oct 00
- Supporting Railroad Roadway Worker Communications with a Wireless Handheld Computer. Volume 1: Usability for the Roadway Worker.
- Influence of heavy trucks on highway bridges
- Rehabilitation of Asphalt Concrete Pavements: Initial Evaluation of the SPS-5 Experiment: Final Report.
- Survey of Public Perceptions of Traffic Law Enforcement in Michigan; Final rept. 1 Oct 99-30 Sep 00
- Improving the Operation of Overnight Intermodal Cargo Terminals Using Simulation and Optimization.
检索历史
应用推荐
