Optimizing Performance Characteristics of Steel Fiber-Reinforced Lightweight Concrete (SFRLWC) for Wearing Surface Application on Orthotropic Steel Decks
| 项目名称： | Optimizing Performance Characteristics of Steel Fiber-Reinforced Lightweight Concrete (SFRLWC) for Wearing Surface Application on Orthotropic Steel Decks |
| 摘要： | Proper design and selection of wearing surfaces can significantly enhance the fatigue life of the bridge, contributing to a cost-effective rehabilitation of such bridges. In addition, new orthotropic decks can be built, that are cost-competitive with other types of bridge configurations. A steel fiber-reinforced lightweight concrete (SFRLWC) wearing surface recently designed for use on the Poplar Street Bridge (PSB) provides stiffness to the flexible orthotropic steel deck while at the same time exhibiting less sensitive thermal softening characteristics compared to polymeric or asphalt-based wearing surfaces. The wearing surface on the PSB also uses continuous steel reinforcing bars and shear studs to anchor the wearing surface to the deck plate. The need for use of continuous reinforcement with low clear covers can be eliminated with proper engineering of the fiber composite system. Optimizing the design of the fiber reinforced concrete composite for this application will allow superior performance and reduced costs by also allowing a redesign of the currently used shear-stud-based anchoring system. Mechanical and durability characteristics desired in wearing surfaces can also be engineered in the systematic optimization of the SFRLWC composite proposed. |
| 状态： | Active |
| 资金： | $126,500.00 |
| 资助组织： | Midwest Transportation Center<==>HDR Engineering<==>USDOT/OST-R |
| 执行机构： | University of Missouri, Columbia |
| 开始时间： | 20131001 |
| 预计完成日期： | 20161231 |
| 主题领域： | Bridges and other structures；Construction；Design；Highways；Materials；Pavements |
相关文献
- CT Girder with FRP Shear Studs – Strength & Fatigue Testing
- Ultra High Strength Concrete Wearing Surface for Asphalt and Concrete Road as well as Bridge Deck
- Bridge Deck Design Criteria and Testing Procedures
- Steel sandwich bridge decks
- Synthesis of Alternate Reinforcements for Enhanced Corrosion Resistance in TxDOT Bridges
- Project 1b: Spalling Solution of Precast - Prestressed Bridge Deck Panels
检索历史
应用推荐
