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Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC) for Infrastructure Rehabilitation Volume 1: Evaluation of Ultra High Strength Concrete (UHSC) in Joints of Bridge Girders
| 题名： | Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC) for Infrastructure Rehabilitation Volume 1: Evaluation of Ultra High Strength Concrete (UHSC) in Joints of Bridge Girders |
| 作者： | Myers, J. J.; Rallabhandhi, S. |
| 关键词： | Bridge girder##Infrastructure rehabilitation##Ultra-high Performance Fiber-Reinforced Concrete (UHPFRC)##Ultra-high strength concrete##Joint##Reinforced concrete (RC) beams##Missouri Department of Transportation (MoDOT)##Iowa State Department of Transportations (DoT)## |
| 摘要： | Joints are often considered as the weak link in a structure and often deterioration of the structure initiates from the joints. Joints transfer the stresses from super-structure to sub-structure and in this process are subjected to large transfer stresses. Not much attention is given to the design of joints as they are positioned in low moment regions and typically a 4 to 6 ksi (28 to 41 MPa) concrete is used to fill the joints. One of the solution to this problem is Ultra-High Strength Concrete (UHSC). In the recent past significant research has been done to use UHSC in deck-level connections and successful results were obtained. UHSC is a relatively new concrete material which not only has high compressive (18 ksi/124 MPa) and tensile strengths (5 ksi/35 MPa) with a very high chemical resistanAccelerated Bridge Construction (ABC) which makes its use economical and time saving. This research focused on using UHSC as joint filler material along with High strength self-coce, and durability. Use of steel fibers in UHSC helps increasing the service life. UHSC was successfully used by New York State and Iowa State Department of Transportations (DoT) in many bridges as various components, and proved to help with consolidating concrete (HS-SCC) while studying the effects of using different continuity details and effects of surface preparation of beam in a reinforced concrete section subjected to high-moment loading using 22 test specimens. An investigation of non-prepossessed Missouri Department of Transportation (MoDoT) end girder detail using UHSC in the joint was also conducted. UHSC when used in the joints can be a viable solution making joints the stronger link holding the structure together. |
| 总页数： | 160 |
| 报告类型： | 科技报告 |
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