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Published in:
2021 | OriginalPaper | Chapter
Hybrid Floating Structures Case Study: Marisco’s Floating Dry Dock
Authors : Sugeng Wijanto, Vivian Sabas, Takim Andriono
Published in: ICCOEE2020
Publisher: Springer Singapore
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Abstract
Over 70% area of the world is ocean, which represents a huge opportunity for floating structure. Existing floating structures were made mostly out of steel or timber while reinforced concrete was preferred for constructing structures on land. Along with high strength concrete- technology innovation, reinforced concrete with mild steel and grouted prestressing steel tendons was also used in the construction of floating structures; typically with honeycombed interior consisting of precast silos interconnected with fin walls in both directions sandwiched between the top deck and the bottom slab. This structural system is highly redundant, robust and lightweight.
This paper describes the state-of-practice in the design of floating concrete structures. The structural design of a concrete pontoon (138 m × 42 m × 4.2 m) for a floating dry dock with a lifting capacity of approximately 9,000 long tonnes was used as a case study. It was built in Indonesia and transported to Hawaii.