Concrete Float Module Connection Using Tension Units
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Solution Overview
Problem
Existing methods for connecting concrete float modules in pontoons face issues with strength, stability, and flexibility, as they often rely on compression due to concrete's varying strength directions, leading to weak connections, shear stress, and limited adjustability, making it difficult to create rigid and uniform platforms that can support superstructures and navigate varying loads.
Innovation Solution
The solution involves running tension units through boreholes in the edges of float modules, with directional recesses and spacers to ensure proper orientation and resilience, allowing for connections in all three spatial directions and enabling the use of corner elements to protect vulnerable points and enhance accuracy, similar to steel structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tension units are run through boreholes in float modules, then connection strength and stability are improved, but device complexity increases due to additional components like directional spacers and corner elements
Solution Approach 1:
The connection system is divided into distinct functional components: corner elements positioned at module corners, directional spacers inserted into recesses created by corner elements, and tension units running through boreholes. This segmentation allows each component to perform its specific function independently while contributing to the overall connection strength.
Solution Approach 2:
Corner elements and directional spacers are pre-positioned and fixed to float modules before the tension units are installed. This preliminary action ensures that the structural framework for the connection is already in place, providing stability and guiding the subsequent installation of tension units through the predetermined boreholes.
2Ease of manufacture
If conventional compression-based connection is used for concrete float modules, then ease of manufacture is maintained, but connection reliability deteriorates due to shear stress and limited adjustability
Solution Approach 1:
Instead of using compression-based connection as is conventional for concrete modules, the invention inverts the approach by using tension units that are tightened to create a secure connection. This inversion overcomes the limitations of compression-based methods regarding shear stress and adjustability while maintaining ease of manufacture through standardized tensioning components.
Solution Approach 2:
The connection method transitions from compression to tension, fundamentally changing the mechanical parameter. Tension units can be adjusted during tightening to achieve the desired connection reliability, providing adaptability that compression-based methods lack, while still being compatible with concrete float modules.
3Manufacturing precision
If float modules are connected with rigid fixed positioning, then manufacturing precision is improved, but adaptability deteriorates due to inability to accommodate varying loads and configurations
Solution Approach 1:
The connection system incorporates adjustable tension units that can be tightened to different degrees, transforming a static rigid connection into a dynamic adjustable one. This allows the same connection structure to adapt to varying loads and configurations while maintaining the precision established by the predetermined borehole positions and corner element alignment.
Solution Approach 2:
The corner elements and directional spacers create a universal connection interface that can accommodate multiple configurations and load conditions. The same basic structure serves multiple functions: positioning, alignment, and adjustable tensioning, making the system adaptable to various pontoon designs and operational requirements.
Data Source
AI summary
In summation, the invention is a design to connect float modules (2) to each other and/or to assembly units and/or to the superstructure. In a preferred embodiment, the invention is applied for pontoons (1) constructed of concrete float modules (2), where prismatic float modules (2) minimally include a monolithic upper plate (3), side walls (4) and/or frame units (6) arranged along the edges (5) of the float module (2) and float modules (2) are fixed to each other by means of longitudinal tension units (15) led through said float modules (2). For tension units (15), boreholes (8) are created in the side walls (4) or the frame units (6) of the float module (2) minimum at the edges (5) of the upper plate of the prism, intersecting the prism and running parallel with the edges (5). In particular cases, directional recesses (14) are created around the exit holes (9) of boreholes (8) with skew axes (Tx, Ty, Tz), running in different directions and meeting in the corners of float modules (2). Into the directional recesses (14) between the float modules (2), resilient directional spacers (16) are inserted. Directional spacers (16) have boreholes that contain the relevant tension units (15). In present invention, at least the surfaces with the boreholes (8) for the tension units (15) are equipped with rigid corner elements (11) at the corners of the float module (2) where the impact resistance and compressive strength of the material of the corner elements (11) exceed those of the material of the float module (2); boreholes (13) are created for the exit holes (9) in the corner elements (11); the directional recesses (14) sunk into corner elements (11) are shaped as truncated cones tapering inwards and the envelope of directional spacers (16) has the same shape as that of the directional recess (14), two truncated cones with their bases facing each other.