Plastering Strip Stabilizing Strut for Bellows Buckling
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Solution Overview
Problem
Existing plastering strips face instability and deformation issues during transport, storage, and assembly due to material properties and design, which affects their ability to compensate for relative movements between building components like door or window frames and adjacent walls, especially under temperature fluctuations and wind loads.
Innovation Solution
A plastering strip design featuring a stabilizing strut that contacts the base body or foot, combined with a hose-like compensating bellows that encloses an inner cavity, provides enhanced stability and flexibility, allowing for reliable force absorption during relative movements while preventing buckling and water ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a compensating bellows is used to enable relative movements between base and base body, then flexibility and movement compensation are improved, but stability of the plastering strip deteriorates
Solution Approach 1:
The plastering strip is divided into distinct functional segments: a rigid base body for stability, a flexible compensating bellows for movement accommodation, and stabilizing struts for structural support. This segmentation allows each component to perform its specific function without compromising the overall system performance.
Solution Approach 2:
The plastering strip combines materials with different mechanical properties - rigid materials for the base body and base foot to ensure stability, and flexible material for the compensating bellows to enable movement compensation. This composite approach resolves the contradiction between stability and flexibility.
2Adaptability or versatility
If the compensating bellows is made flexible to accommodate material movements, then adaptability is improved, but deformation during transport and storage increases
Solution Approach 1:
The stabilizing struts are pre-installed in a fixed position between the base body and base foot to provide preliminary structural support. This preliminary action prevents excessive deformation during transport and storage while still allowing the compensating bellows to function when needed during installation.
Solution Approach 2:
The stabilizing struts are positioned at specific locations where they provide maximum structural support without restricting the flexibility of the compensating bellows. This localized reinforcement approach maintains manufacturing precision where needed while preserving adaptability where required.
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
The solution ensures high stability and flexibility of the plastering strip, effectively compensating for relative movements and preventing water ingress, thus maintaining a secure and watertight connection between building components.
Implementation Method 1
The compensating bellows of such a plastering strip exhibit a certain degree of instability, particularly due to the properties of the material used and its design as a flexible element. This can lead to undesirable deformation of the strip during transport, storage, and installation.
Data Source
Figure 1
AI summary
The invention relates to a plastering strip for a joint between plaster and a building component, in particular a door or window frame, comprising a strip base body with a base web and at least one plastering web designed for connection with the plaster, a strip foot designed for contact and attachment to the building component, and a compensating bellows which encloses a cavity and is arranged between the base web of the strip base body and the strip foot and is formed integrally with it, wherein at least one stabilizing strut is arranged on the compensating bellows, which extends from an outside of the compensating bellows towards the base web or the strip foot.