Cause Analysis of Cracks Found on Horizontal Truss of Quayside Container Cranes

Zhen Qiao; Da Shan Dong; Hui Qiang Zheng

doi:10.4028/www.scientific.net/AMR.490-495.3013

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 490-495Cause Analysis of Cracks Found on Horizontal Truss...

Cause Analysis of Cracks Found on Horizontal Truss of Quayside Container Cranes

Abstract:

Horizontal truss is designed to increase the stiffness of the girder, but cracks are found at the forefront joint after 3years’ operation. To analyze the cause, finite element simulation method is employed. Fatigue calculation is done on the basis of the simulation results according to FEM code. The research indicates that when the structure is working in tension-pressure alternative situation, its loading capacity is sharply reduced, and welding structures are even sensitive to such stress cycle because of serious stress concentration. Operating status should be fully considered to avoid failure in low stress.

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Periodical:

Advanced Materials Research (Volumes 490-495)

Pages:

3013-3017

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.490-495.3013

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Online since:

March 2012

Authors:

Zhen Qiao, Da Shan Dong, Hui Qiang Zheng

Keywords:

Fatigue Crack, Finite Element (FE) Simulation, Gusset Plate Connections to Slotted Tubes, Stress Concentration

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