原文传递
Fiber Reinforcement in Prestressed Concrete Beams. Technical rept. (Sept 2003 - Aug 2005).
| 题名： | Fiber Reinforcement in Prestressed Concrete Beams. Technical rept. (Sept 2003 - Aug 2005). |
| 作者： | DHONDE, H. B.; HSU, T. T. C.; MO, Y. L. |
| 关键词： | *Prestressed-concrete-beams; *Highway-bridges; *Texas-; *Fiber-reinforced-concrete.;Bridges-Structures; Beams-Supports; Fiber-reinforcement; End-zone-cracking; Design-guidelines; Recommendations-. |
| 摘要： | Prestressed concrete I-beams are used extensively as the primary superstructure elements in Texas highway bridges. A commonly observed problem in these beams is the appearance of end zone cracking due to the prestressing forces, thermal effects of hydration, shrinkage and temperature variation. Even though a large quantity of transverse steel reinforcement is provided in the end zone, the cracking problem persists. The research described in this report was targeted to develop a workable steel fiber reinforced concrete mix that would be capable of partially or completely replacing the dense traditional reinforcement and eliminating cracking in the end zones. |
| 报告类型： | 科技报告 |
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