Wall Profile Element with Segmented Bridge Braces
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Solution Overview
Problem
Conventional profile elements used in wall construction, particularly for lightweight partition walls, require overdimensioning to withstand static loads, leading to increased weight and material consumption without maintaining static properties.
Innovation Solution
A profile element with a bridge region featuring support braces oriented along the long direction and connecting braces that take up and transmit torsion forces, allowing for optimized force transmission and reduced material usage, achieved through a specially designed moulded part with triangular indents and a roll-forming manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If profile elements are strongly dimensioned to ensure static reliability, then the carrying capacity and stability are improved, but the overall weight and material consumption increase
Solution Approach 1:
The bridge region is segmented into multiple longitudinal support braces (at least two) that are distributed across the width of the profile element. These support braces divide the force transmission path into separate segments, allowing each brace to be optimized for specific load paths while collectively providing the required static reliability. This segmentation enables weight reduction compared to a single monolithic bridge structure.
Solution Approach 2:
The profile element employs local quality by providing support braces only in the bridge region where force transmission is critical, rather than uniformly thickening the entire profile. The support braces are strategically positioned to handle specific force components (longitudinal forces, torsion forces), allowing material to be concentrated where needed and reduced where not required, thus improving reliability without proportionally increasing weight.
2Reliability
If profile elements are strongly dimensioned to ensure static reliability, then the carrying capacity is improved, but the material consumption increases
Solution Approach 1:
The bridge region is divided into multiple support braces that are spaced across the width of the profile element. This segmentation allows the material to be distributed efficiently along the length and across the width, with each brace serving a specific force transmission function. The segmented structure achieves the required reliability with less total material than a solid, uniformly thick bridge region.
Solution Approach 2:
The support braces extend in the longitudinal direction (along the length of the profile element), adding a dimensional aspect to force transmission that is distinct from the transverse dimension. This longitudinal orientation of support braces creates efficient force paths that span the length of the element, allowing material to be used more effectively and reducing the quantity needed compared to traditional transverse bracing arrangements.
3Reliability
If conventional profile elements are used with adequate safety factors, then the static properties are ensured, but the overall weight and costs increase
Solution Approach 1:
The support braces are pre-configured in the profile element during manufacturing to establish optimal force transmission paths before the structure is subjected to loads. The longitudinal orientation and strategic positioning of support braces are predetermined to handle expected force components (bending moments, shear forces, torsion), allowing the structure to be optimized for its specific application rather than using generic overdimensioning with high safety factors.
Solution Approach 2:
The invention changes key geometric parameters of the profile element, specifically the orientation and distribution of support braces in the bridge region. By transitioning from conventional transverse or diagonal bracing to longitudinal support braces, the force transmission parameters are optimized, allowing reduced material quantities while maintaining or improving static properties. This parameter change enables weight reduction without compromising reliability.
Data Source
Figure 1
Figure 2a~2b
AI summary
The invention relates to a profile element (1) to serve as a carrier structure for the construction of walls, such that the profile element (1) comprises at least one bridge region (2) and at least one flange region (3). With the goal of disclosing a profile element (1) of lightweight construction, in which the static requirements are still met as previously, it is provided in accordance with the invention that, firstly, the bridge region (2) comprises at least two support braces (5, 5') oriented substantially in the long direction of the profile, by way of which the forces acting on the profile element (1) are taken up and transmitted away in the long direction of the profile, and that secondly, the bridge region (2) further comprises a plurality of connecting braces (7) that are each disposed between the support braces (5, 5') and mechanically connected to at least two support braces (5, 5') in such a way as to take up torsion forces and transmit them to the associated support braces (5, 5').