A finite element approach to renew underwater shell plate of a dumb barge sans dry docking: an innovative and cost-effective model

Rajasekhar, D.; Ravi, Nachiappan; Rao, Anantha Krishna; Narendrakumar, D.

doi:10.1080/17445302.2011.559369

Cited by 1 publication

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“…Li [8] discusses the anti-ship collision suspended steel cofferdam in Shanghai Changjiang River Bridge and analyzes the deformation and strain state under the stage of construction and floating-transportation by the finite element method. Rajasekhar [9] designs a suitable water-tight chamber and uses it as a cofferdam to renew the shell plate. Quaglia [10] evaluates the construction of a cellular cofferdam in Puerto Belgrano Naval Base as a series of changes in site conditions and constructions deviations.…”

Section: Literaturementioning

confidence: 99%

The Line-Type Optimization of Horizontal Arch-Ring for Floating Arch Cofferdam

Wang¹,

Liu²

2016

Proceedings of 2016 International Conference on Modeling, Simulation and Optimization Technologies and Applications (MSOTA2016)

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The study proposes the optimized line-type of a reusable floating arch cofferdam creating the dry area to reinforce the dangerous dam. The water is discharged from the cavity of the arch cofferdam which automatically rises in the water, and then pulls to the next construction site. So the linetype of floating arch cofferdam need optimize in order to reduce the engineering quantity but enough strength. The study estimates the force performance, the deformation at the support and the engineering quantity of five schemes using CAD and SAP software. The schemes respectively are the semicircle , single center circle that the center angle is 140°, elliptical arch, and two three-center's circle. The final conclusion is that the semicircle is preferred for surrounding a dam section, and the three-center circle(60°) is preferred for surrounding more than two dam section. The floating cofferdam has practical application value, and the structure of the floating arch cofferdam is innovative.

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Section: Literaturementioning

confidence: 99%