C-Shaped Tie Support Structure for Rack Beam Sag and Twist
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ready-to-assemble rack storage systems fail to prevent bowing, sagging, or outward twisting of deck beams under significant weight, leading to instability and potential collapse.
Innovation Solution
The storage rack employs a C-shaped tie support arrangement with interlocking tabs and slots between deck beams, which limits sagging and prevents twisting, and an optional reinforcing rib for increased rigidity, ensuring stability under heavy loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional deck beam support arrangements are used, then the structure is simple and easy to assemble, but the deck beams bow, sag, or twist under significant weight leading to instability
Solution Approach 1:
The tie support is divided into multiple functional segments: top flange with tabs for preventing upward twisting, bottom flange with tabs for preventing downward twisting, and vertical web for preventing sagging. Each segment addresses a specific failure mode, allowing the overall structure to maintain stability without requiring a completely complex design.
Solution Approach 2:
The tie support extends in multiple dimensions - horizontally between deck beams and vertically with its web. The tabs extend perpendicular to the main flange surfaces, adding another dimensional aspect to the restraint mechanism. This multi-dimensional approach prevents deformation in multiple directions simultaneously.
2Strength
If heavier gauge steel is used for deck beams, then sagging and twisting are prevented, but manufacturing cost and weight increase
Solution Approach 1:
The tie support acts as an intermediary element between the deck beams, providing the necessary reinforcement without requiring the deck beams themselves to be heavier. The tie support transfers and distributes loads, allowing lighter deck beams to achieve the same structural performance as heavier ones would provide alone.
Solution Approach 2:
The system combines the deck beam structure with the tie support structure to create a composite load-bearing system. The tie support's C-shaped configuration with flanges and web creates a composite structural arrangement that provides enhanced strength and rigidity without requiring the primary deck beams to be made of heavier material.
3Reliability
If tie supports are added to prevent sagging and twisting, then structural integrity is improved, but assembly complexity increases
Solution Approach 1:
The critical reinforcement functions are extracted into separate, standardized tie support components that can be manufactured independently and then assembled. This allows the complex structural reinforcement to be achieved through modular components rather than requiring complex integrated structures, making assembly more manageable.
Solution Approach 2:
The tie support design uses standardized dimensional parameters and material specifications that optimize both structural performance and manufacturability. The C-shaped configuration with specific flange widths, web thickness, and tab dimensions represents optimized parameters that provide maximum structural benefit with minimal assembly complexity.
Data Source
AI summary
A storage rack includes front and rear deck beams and C-shaped tie supports extending between the deck beams. Each tie support has a side wall, a top flange and a bottom flange. The top flange and bottom flange have front and rear ends and tabs extending downwardly therefrom. The top flange has a reinforcing rib. When assembled with the deck beams the front and rear ends of the top flange are seated on a support ledge of the deck beams with the tabs received into respective slots. Similarly, the front and rear ends of the bottom flange are seated on a lower leg of the front and rear deck beams with the tabs received into respective slots. The tie supports cooperate with the deck beams to limit the sagging of the decks, while also preventing outward twisting of the deck beams.