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An experimental study was carried out to investigate the behavior of a new type multicantilever prestressed composite beams with corrugated steel webs (CBCW). The main mechanical performances of CBCW, such as efficiency of prestressing, creep and shrinkage of concrete slab, load distribution, and load-carrying capacity were focused on in this study. One scaled test specimen was constructed and tested. Based on strain measurements, stress in test specimen and load distribution factor were analyzed using theories of elasticity and plasticity. The bending resistance of specimen was also obtained. The test results indicate that the use of CBCW improves the prestressing efficiency and crack resistance capacity of CBCW. It also reveals that the CBCW has better ductility than the conventional system. In addition to the experimental study, new methods for analyzing the effect of creep and shrinkage, load distribution, and bending resistance capacity of CBCW are proposed. The proposed method gives satisfactory predictions in comparison with the test results.
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Shao et al. (2010) studied this question.
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