Abstract
This paper presents an efficient method for collision design of prestressed concrete pontoon walls. High fidelity finite element models of a container ship bow and a prestressed concrete pontoon wall are first established. Integrated numerical simulations are conducted to study the structural deformation of the pontoon wall during the collision. Parametric studies are also carried out to investigate the effect of the pontoon wall thickness. Based on the failure mode of the pontoon wall, a punching shear check procedure is proposed. This method yields a good accuracy while significantly reduces computational efforts. Hence, the proposed approach can be used for collision analysis in the preliminary design phase of floating pontoons.
Highlights
IntroductionNormal strength concrete floating structures are vulnerable to accidental ship bow collisions
The Norwegian Public Roads Administration is planning to build a highway along the west coast of Norway
This paper presents an efficient method for collision design of prestressed concrete pontoon walls
Summary
Normal strength concrete floating structures are vulnerable to accidental ship bow collisions. Another approach which is widely used for ship collision is numerical analysis. 2. Finite element models In this study, finite element models of a reinforced concrete pontoon wall and a container ship bow are established based on the structural drawings for numerical collision analyses. The two main pontoons have a higher possibility of subjecting to accidental ship collisions compared to other side pontoons They are essential supporting structures regarding the overall stability of the whole bridge.
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