First Diagonal Cracking and Ultimate Shear of I-Shaped Reinforced Girders of Ultra High Performance Fiber Reinforced Concrete without stirrup
- Authors
- Xiangguo Wu; 한상묵
- Issue Date
- 2009
- Publisher
- 한국콘크리트학회
- Keywords
- Two bounds theory; Ultra-high performance; Steel fiber; Reinforced bar; Girder; Cracking load; Ultimate shear
- Citation
- International Journal of Concrete Structures and Materials, v.3, no.1, pp 47 - 56
- Pages
- 10
- Journal Title
- International Journal of Concrete Structures and Materials
- Volume
- 3
- Number
- 1
- Start Page
- 47
- End Page
- 56
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/22980
- ISSN
- 1976-0485
2234-1315
- Abstract
- The first diagonal cracking and ultimate shear load of reinforced girder made of Ultra High Performance Fiber Reinforced Concrete (UHPFRC) were investigated in this paper. Eleven girders were tested in which eight girders faied in shear. A simplified formula for the first diagonal cracking load was proposed. An analytical model to predict the ultimate shear load was formulated based on the Two Bounds Theory. A fiber reinforcing parameter is constituted based on the random assumption of steel fiber uniform distribution. The predicted values were compared with the conventional predictions and the test results. The proposed equation can be used for the first cracking status analysis, while the proposed equations for computing the ultimate shear strength can be used for the ultimate failure status analysis, which could also be utilized for numerical limit analysis of reinforced UHPFRC girder. The established fiber reinforcing theoretical model can also be a reference for micro-mechanics analysis of UHPFRC.
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Collections - Department of Civil Engineering > 1. Journal Articles
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