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Design Method on Flexural Behaviour of Singly-Reinforced PVA-ECC Beams
Polyvinyl alcohol-engineered cementitious composite (PVA-ECC) is superior to normal concrete in terms of tensile strain capacity and crack mitigation. On account of the significant strain-hardening behaviour, the tensile strength of PVA-ECC should be considered in the design of reinforced PVA-ECC members. In this paper, a design method is proposed to evaluate the flexural resistance of reinforced PVA-ECC members based on the classified failure mode. Simplified constitutive models in compression and tension are adopted in the design method. Limiting reinforcement ratios, namely, minimum reinforcement ratio, balanced reinforcement ratio and yielding reinforcement ratio, are also determined for different failure modes of beams. Finally, the design method is validated by test results of singly reinforced PVA-ECC beams from different literature to assess its accuracy. Comparisons between experimental and analytical results show that the design method is reasonably accurate in estimating the load-bearing capacity of reinforced PVA-ECC beams.
Design Method on Flexural Behaviour of Singly-Reinforced PVA-ECC Beams
Polyvinyl alcohol-engineered cementitious composite (PVA-ECC) is superior to normal concrete in terms of tensile strain capacity and crack mitigation. On account of the significant strain-hardening behaviour, the tensile strength of PVA-ECC should be considered in the design of reinforced PVA-ECC members. In this paper, a design method is proposed to evaluate the flexural resistance of reinforced PVA-ECC members based on the classified failure mode. Simplified constitutive models in compression and tension are adopted in the design method. Limiting reinforcement ratios, namely, minimum reinforcement ratio, balanced reinforcement ratio and yielding reinforcement ratio, are also determined for different failure modes of beams. Finally, the design method is validated by test results of singly reinforced PVA-ECC beams from different literature to assess its accuracy. Comparisons between experimental and analytical results show that the design method is reasonably accurate in estimating the load-bearing capacity of reinforced PVA-ECC beams.
Design Method on Flexural Behaviour of Singly-Reinforced PVA-ECC Beams
Lecture Notes in Civil Engineering
Geng, Guoqing (editor) / Qian, Xudong (editor) / Poh, Leong Hien (editor) / Pang, Sze Dai (editor) / Wang, Dan-Dan (author) / Kang, Shao-Bo (author) / Yu, Xiao-Fan (author) / Liu, Kun (author) / Tan, Xun-Tian (author)
Proceedings of The 17th East Asian-Pacific Conference on Structural Engineering and Construction, 2022 ; Chapter: 85 ; 1040-1049
2023-03-14
10 pages
Article/Chapter (Book)
Electronic Resource
English
PVA-ECC , Flexural behaviour , Limiting reinforcement ratios , Proposed design method Engineering , Building Construction and Design , Structural Materials , Solid Mechanics , Sustainable Architecture/Green Buildings , Light Construction, Steel Construction, Timber Construction , Offshore Engineering
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