Angled Spacer Strip for Concrete Reinforcement Positioning
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Solution Overview
Problem
Existing spacer strips for positioning reinforcing elements in concrete production lack stability and uniform force transmission, especially when used with soft formwork materials, and are not easily penetrable by concrete, while also being difficult to store efficiently.
Innovation Solution
A spacer strip design featuring a support strip with obliquely extending support elements that create a triangular cross-section, providing a large contact surface for force distribution and allowing concrete penetration, along with connecting webs for stability and plug-in coupling for easy assembly and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If support elements extend vertically downwards from the support strip, then the spacer strip structure is simple, but the force transmission to the formwork is not uniform and the spacer strip sinks into soft formwork materials
Solution Approach 1:
The support elements extend diagonally at angles of 30-60 degrees from the vertical axis, creating an asymmetric triangular configuration. This asymmetric arrangement distributes compressive forces more evenly across the formwork surface and prevents the spacer strip from sinking into soft materials, while maintaining structural simplicity.
2Stability of the object's composition
If the spacer strip has a wide base for stable force distribution, then force transmission is uniform, but the spacer strip occupies excessive storage space
Solution Approach 1:
The spacer strips are designed to be nestable, with one spacer strip inserted inside another during storage. This nesting capability allows the strips to maintain their wide base configuration for stable force distribution during use, while occupying minimal storage space when not in use.
3Stability of the object's composition
If the spacer strip has a solid structure for stability, then force transmission is reliable, but concrete penetration is difficult
Solution Approach 1:
The spacer strip incorporates a triangular configuration with inherent void spaces between the diagonally extending support elements. This porous-like structure maintains structural stability while allowing concrete to penetrate through the gaps, ensuring proper bonding between the reinforcement elements and the concrete matrix.
Data Source
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AI summary
The invention relates to a spacer strip for positioning reinforcement elements, which has on its upper side a support strip extending in the direction of a longitudinal axis, from which several support elements extend downwards at an angle to the vertical and alternately to opposite sides with respect to the longitudinal axis, wherein the support elements each have a horizontally extending base surface on their underside, and the base surfaces of two adjacent and oppositely extending support elements are connected by a planar connecting web.