Evaluation of Indented Prestressing Wires for KDOT Bridge Members
| 项目名称： | Evaluation of Indented Prestressing Wires for KDOT Bridge Members |
| 摘要： | Most pretensioned concrete members in the United States utilize 7-wire prestressing strands that are at least 3/8-inch diameter. However, individual indented prestressing wires have been commonly used in Europe and Asia for more than 20 years and are becoming increasingly popular in the United States. In the past 11 years, Kansas State University has conducted over $3.5 million of USDOT/Federal Railroad Administration (FRA) funded research aimed at understanding the bonding and structural performance of these reinforcements, so that they can now be utilized correctly in their intended application. This research had led to the development of a new ASTM standard to evaluate the bond of these wires (ASTM A1096), an automated non-contact transfer length measurement device, a non-contact wire indent profiler, and a new Splitting Resistance Test (SRT) that was officially adopted into the AREMA Design manual in 2021. The objective of this research is to: Investigate opportunities to utilize indented prestressing wires in KDOT bridge members to optimize designs efficiency and safety. A secondary benefit of using these wires is to establish alternate suppliers of prestressing steel to protect against disruptions in the supply chain. |
| 状态： | Active |
| 资金： | 59615 |
| 资助组织： | Kansas Department of Transportation |
| 执行机构： | Kansas State University Transportation Center |
| 主要研究人员： | Peterman, Robert |
| 开始时间： | 20220808 |
| 预计完成日期： | 20231130 |
| 主题领域： | Bridges and other structures；Design；Highways；Materials |
相关文献
- FATIGUE STRENGTH OF PRESTRESSING STEELS
- Prevention of Stress-Induced Failures of Prestressed Concrete Crossties of the Railroad Track Structure
- Experimental and Analytical Evaluation of Residual Capacity and Repair Methods for Corrosion-Damaged Prestressed Concrete Bridge Girders
- EXECUTION OF LARGE-SCALE TESTS TO DETERMINE MATERIAL CHARACTERISTICS DURING THE DISMANTLING OF A PRESTRESSED CONCRETE BRIDGE (MOTORWAY NEAR VIENNA)
- EXECUTION OF LARGE-SCALE TESTS TO DETERMINE MATERIAL CHARACTERISTICS DURING THE DISMANTLING OF A PRESTRESSED CONCRETE BRIDGE (MOTORWAY NEAR VIENNA)
- Evaluation of the Bonner Bridge Girders: Assessing Residual Capacity, Prestressing Losses and Degradation of the 56 Year Old Members
检索历史
应用推荐
