Technical Study on Four-Crane Joint Lifting of Large-Sized Structures

Abstract:

In recent years, due to rapid development of offshore engineering construction, offshore structure size and weight becomes larger and larger. In the process of offshore structures fabrication, the size and weight of the sub-structure is also becoming bigger, lifting method using single or two sets of cranes cannot meet the capacity requirement of the lifting operation, joint operation using four cranes is required in such cases. To solve this problem, this paper analyze the risk factors (the uncertainty of the hook load, the inaccuracy of the center-of-gravity, limited working condition ) in the process of joint lifting using four crane. The paper also discusses the whole lifting process and simulates the process by using analysis software SACS, and the calculation result matches actual work very well.

• Periodical: Advanced Materials Research (Volumes 945-949)
• Pages: 335-338
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.945-949.335
• Online since: June 2014
• Authors: Yi Lv, Feng Yan Yang, Ming Wang Yang, Chen Gong, Jin Hua Liu, Feng Jian Li
• Keywords: Crane, Hook Load, Joint Lifting, Structure

References

[1] Ben C. Gerwick, Jr: Construction of Marine and Offshore Structures, CRC Press, p.793 (2007).

[2] Yu ZL: A summary of the additional slideway structure design in Nanyou marine wharf. Port & Waterway Engineering. p.36~37(2002).