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Structural Engineering and Mechanics Volume 12, Number 4, October 2001 , pages 377-396 DOI: https://doi.org/10.12989/sem.2001.12.4.377 |
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Application of a 3-D crack analysis model to RC cantilever decks of excessive cracking |
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Zihai Shi and Masaaki Nakano(Japan)
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| Abstract | ||
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The excessive cracking of RC cantilever decks, which often requires special attention for structural engineers, is studied using a three-dimensional crack analysis model. The model is based on a fracture energy approach for analyzing cracks in concrete, and the numerical analysis is carried out using a modified load control method. The problem of excessive cracking is then studied with four different span-ratios. Based on the numerical results, the crack behavior with respect to the patterns of crack propagation, dissipation of the fracture energy, and effects on the structural integrity are discussed. The mechanisms which cause the excessive cracking are also explained. | ||
| Key Words | ||
| RC cantilever decks; 3-D crack analysis; fracture energy; load control. | ||
| Address | ||
| Zihai Shi and Masaaki Nakano, Research and Development Center, Nippon Koei Co., Ltd., 2304 Inarihara, Kukizaki-machi, Inashiki-gun, Ibaraki 300-1259, Japan | ||