Offshore Platform Concrete Transition Piece Corrosion Resistance
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Solution Overview
Problem
Offshore wind power platforms face challenges in maintaining stability and durability due to corrosion and high maintenance costs, particularly in harsh marine environments, where steel structures are prone to damage from seawater and debris.
Innovation Solution
The use of reinforced concrete and prestressed concrete structures for foundation piles, transition pieces, and working platforms, which are less susceptible to corrosion and require minimal maintenance, along with a method for grouting that ensures secure bonding and optimal grout properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If steel structures are used for offshore platforms, then high load-bearing capacity is achieved, but corrosion resistance deteriorates due to seawater and debris
Solution Approach 1:
The patent applies composite materials by combining steel foundation piles with a concrete transition piece and concrete working platform. The concrete structures provide corrosion resistance while the steel foundation piles provide high load-bearing capacity for installation into the seabed. This composite approach resolves the contradiction by allowing each material to perform where it excels.
2Strength
If steel transition pieces and working platforms are used, then structural strength is improved, but maintenance requirements increase due to corrosion damage
Solution Approach 1:
The patent changes the material parameter from steel to concrete for the transition piece and working platform. Concrete has comparable structural strength for these applications and provides inherent corrosion resistance, eliminating the need for protective coatings and reducing maintenance requirements significantly in the harsh offshore environment.
3Reliability
If concrete structures are used for transition pieces and working platforms, then corrosion resistance is improved, but transportation complexity increases due to weight
Solution Approach 1:
The patent segments the offshore platform into separate components: steel foundation piles installed first, then the concrete transition piece, and finally the concrete working platform. This segmentation allows each component to be manufactured and transported separately to the installation site, reducing overall transportation complexity while maintaining the corrosion resistance benefits of concrete structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces maintenance efforts, enhances structural stability, and improves vibration behavior, while allowing for easier assembly and reduced transportation complexities, leading to cost-effective and durable offshore platforms.
Implementation Method 1
a annular space (125) is formed between the foundation pile (106) and the transition piece (112), which is grouted with grout material (178)
Implementation Method 2
Grout material is a building material that is used to join building blocks together or to fill gaps and cavities in masonry or concrete structures
Data Source
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AI summary
The offshore platform (100) has at least one first foundation pile (106), a transition part (112) in the form of a concrete structure and a building connecting structure formed on the transition part. The transition part can be a reinforced concrete structure with prestressed reinforcement.