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Bolt-connected prefabricated cross-shaped I-steel tower crane foundation

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  • Jianhui Yang

Abstract

Traditional tower cranes cannot meet the sustainable development goals as they use the cast-in-place concrete foundation, with large size, long construction period, and demolition after construction, resulting in waste of resources and high costs. This paper proposes a bolt-connected prefabricated cross-shaped I-steel tower crane foundation. It offers significant advantages in terms of convenient connection, low amortization cost and recyclability. The split connection point of the foundation is determined through the force analysis of the I-steel. With the ratio of the fixed cross-sectional area to the web height-to-thickness ratio (i.e. total cost) being constant, the inertia moment and bending stiffness of the I-steel are optimized using modern optimization design methods with the ratio of the web plate area to the total section area of the I-steel as the design variable, yielding the ideal strength and stiffness of the I-steel section.

Suggested Citation

  • Jianhui Yang, 2023. "Bolt-connected prefabricated cross-shaped I-steel tower crane foundation," PLOS ONE, Public Library of Science, vol. 18(9), pages 1-14, September.
    • Handle: RePEc:plo:pone00:0291982
    DOI: 10.1371/journal.pone.0291982
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