Tent Arch Section Bar with Adjustable Channels
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Solution Overview
Problem
Existing metal section bars for tent structures are not interchangeable due to fixed and predetermined hole patterns, making it cumbersome to adjust their position during installation, and errors in hole placement can lead to assembly issues and imperfect sealing.
Innovation Solution
A metal section bar with integrated channels and technical grooves that allow for the flexible positioning and adjustment of cover sheets and fastening elements, enabling quick assembly and adaptation to changing conditions without the need for additional drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed and predetermined hole patterns are used in metal section bars, then manufacturing and assembly are simplified, but adaptability and ease of repositioning deteriorate
Solution Approach 1:
The metal section bar is designed with multiple pre-drilled holes at different positions along its length, making it a universal component that can accommodate various attachment positions for purlins, bracing rods, and accessories. This single multi-functional bar replaces what would otherwise require multiple dedicated bars with different hole patterns, thereby improving adaptability while maintaining manufacturing simplicity.
Solution Approach 2:
The section bar incorporates a series of holes arranged along its length, allowing the positioning of purlins and accessories to be dynamically adjusted during assembly based on specific installation requirements. This dynamic positioning capability enables the structure to adapt to varying load conditions and spatial requirements without requiring custom-modified bars.
2Manufacturing precision
If additional holes are drilled to correct hole placement errors, then positioning accuracy improves, but assembly time and complexity increase
Solution Approach 1:
Multiple holes are pre-drilled at all possible required positions during the manufacturing phase. This preliminary action ensures that regardless of which specific position is needed during assembly, the correct hole is already available, eliminating the need for time-consuming on-site drilling operations to correct positioning errors or accommodate design changes.
Solution Approach 2:
The design transitions from a single fixed hole position to multiple variable hole positions along the section bar. This parameter change allows the effective position of the attachment hole to be varied during assembly by selecting among the pre-drilled holes, thereby achieving positioning flexibility without additional drilling operations.
3Strength
If dedicated pieces are used for pillars and beams, then structural function is optimized, but interchangeability and ease of assembly deteriorate
Solution Approach 1:
The metal section bar is designed as a universal component that can serve multiple structural functions - acting as both vertical pillars and horizontal beams depending on its orientation and positioning in the structure. The standardized cross-section and multiple hole patterns allow the same component type to be used throughout the structure, simplifying assembly and inventory management while maintaining structural integrity.
Solution Approach 2:
The section bar is designed with segmented hole patterns along its length, allowing it to be configured for different structural roles (pillar or beam) by selecting appropriate holes for attachment. This segmentation of functional capability within a single component design enables versatility without compromising the structural optimization needed for different loading conditions.
Data Source
Figure 1
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AI summary
A metal section bar (1) for an arch of a tent structure (100) comprises an upper wall (10), a lower wall (30), a right side wall (20) and a left side wall (40) which define an inner cavity (C) of the metal section bar (1). The metal section bar (1) comprises: - a first channel (21) with an open annular section; - a second channel (22) with an open annular section; - a third channel (23) with an open annular section.