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Computers and Concrete Volume 18, Number 3, September 2016 , pages 337-354 DOI: https://doi.org/10.12989/cac.2016.18.3.337 |
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Study on fracture characteristics of reinforced concrete wedge splitting tests |
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HU Shaowei, XU Aiqing, HU Xin and YIN Yangyang
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| Abstract | ||
| To study the influence on fracture properties of reinforced concrete wedge splitting test specimens by the addition of reinforcement, and the restriction of steel bars on crack propagation, 7 groups reinforced concrete specimens of different reinforcement position and 1 group plain concrete specimens with the same size factors were designed and constructed for the tests. Based on the double-K fracture criterion and tests, fracture toughness calculation model which was suitable for reinforced concrete wedge splitting tensile specimens has been obtained. The results show that: the value of initial craking load Pini and unstable fracture load Pun decreases gradually with the distance of reinforcement away from specimens | ||
| Key Words | ||
| reinforced concrete; reinforcement position; fracture parameters; crack propagation | ||
| Address | ||
| HU Shaowei and HU Xin: Materials & Structural Engineering Department, Nanjing Hydraulic Research Institute, 34 Hujuguan, Nanjing, China XU Aiqing and YIN Yangyang: College of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing, China | ||