原文传递
Investigating UHPC in deck bulb-tee girder connections, part 1: Analytical investigation
| 题名： | Investigating UHPC in deck bulb-tee girder connections, part 1: Analytical investigation |
| 正文语种： | eng |
| 作者： | Abdullah Haroon;Waleed Hamid;Eric Steinberg;Kenneth Walsh;Richard Miller;Bahram Shahrooz |
| 作者单位： | Department of Civil and Environmental Engineering at the University of Cincinnati in Cincinnati Ohio;Department of Civil Engineering at the University of Fallujah in Iraq;Department of Civil Engineering at Ohio University in Athens Ohio;Department of Civil Engineering at Ohio University;Department of Civil and Environmental Engineering at the University of Cincinnati;Department of Civil and Environmental Engineering at the University of Cincinnati |
| 关键词： | AASHTO; ABC; accelerated bridge construction; American Association of State Highway and Transportation Officials; bulb-tee girder; connection; girder; UHPC; ultra-high-performance concrete |
| 摘要： | Precast concrete deck bulb-tee girder systems offer an excellent choice for prestressed concrete bridges with spans of 100 ft (30.48 m) or more. These girders are placed side by side in the field and connected using longitudinal joints. The wide top flange of the girders acts as a deck, eliminating the need for a cast-in-place concrete deck and providing a solution for accelerated bridge construction. However, the longitudinal joints between the girders often crack under service loads, allowing for water and deicing chemicals to enter the system and cause corrosion. An analytical study with ultra-high-performance concrete (UHPC) longitudinal joints was performed to investigate the joint performance when subjected to thermal and live loads. A continuity diaphragm with UHPC in the top flange was also investigated for negative moment over pier. Results of the investigation suggest that the use of UHPC can improve the performance of the connections. The high bond strength of the UHPC reduces the connection length and allows for simpler reinforcement details. |
| 出版年： | 2023 |
| 期刊名称： | PCI Journal |
| 卷： | 68 |
| 期： | 3 |
| 页码： | 62-78 |
相关文献
- Investigating UHPC in deck bulb-tee girder connections, part 2: Full-scale experimental testing
- Investigating UHPC in deck bulb-tee girder connections, part 2: Full-scale experimental testing
- Investigating UHPC in deck bulb-tee girder connections, part 2: Full-scale experimental testing
- Long-span hybrid precast concrete bridge girder using ultra-high-performance concrete and normalweight concrete
检索历史
应用推荐
