Anchor Rail Selective Thickening Concrete Stability

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Solution Overview

Problem

Anchor rails embedded in concrete face stability issues due to deformation and material failure under weight and stress, leading to potential cracking and loss of stability, particularly at the connection points between the anchor and the ground.

Innovation Solution

The anchor rail features selective thickening of its base body and legs, with increased wall thickness in high-load areas to enhance stability and load-bearing capacity, while minimizing material usage and weight, including a thickened base extending over the entire longitudinal extent and side wall thickenings to reinforce critical areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the wall thickness of the base body and legs is increased uniformly throughout, then the stability and load-bearing capacity improve, but the material consumption and weight increase

Engineering Contradiction:
Improvestability and load-bearing capacityVSAvoidmaterial consumption
Core Design Contradiction:
StrengthVSQuantity of substance

Solution Approach 1:

The patent applies local quality by providing selective thickenings only in specific high-load areas of the base body and legs, rather than uniformly increasing wall thickness throughout. The thickenings are positioned at locations subjected to particularly high loads, such as the base area and leg regions near the anchor connection points, while other areas maintain the minimum wall thickness. This resolves the contradiction by concentrating material where it is most needed for strength while minimizing overall material consumption.

Inventive Principle:
Principle #3Local quality

2Strength

If the wall thickness is increased in high-load areas, then the stability improves, but the manufacturing complexity increases

Engineering Contradiction:
ImprovestabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The selective thickening design creates localized variations in wall thickness at specific high-load areas while maintaining uniform thickness in other regions. This approach balances stability improvement with manufacturing feasibility, as the thickening can be achieved through standard forming processes applied to specific zones rather than requiring complex multi-step manufacturing procedures for the entire component.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3081708B1Anchor rail for anchoring in concrete
Publication Date: 2020.09.02 HALFEN GMBH & CO KG
  • EP3081708B1 patent drawingFigure 1~2
  • EP3081708B1 patent drawingFigure 3~4
  • EP3081708B1 patent drawingFigure 5~6

AI summary

The invention relates to an anchor rail for anchoring in concrete with a substantially C-shaped cross-section. The anchor rail (1) comprises a base body (20) with a substantially U-shaped cross-section, two free legs (4, 24, 34), and at least one anchor (2). The base body (20) comprises a bottom (7) and two side walls (3). The two free legs (4, 24, 34) are arranged opposite the bottom (7) of the base body. The at least one anchor (2) is arranged on the bottom (7). A slot (5) is formed between the free legs (4, 24, 34) in the longitudinal direction (200) of the anchor rail (1). The anchor rail (1) has at least one thickening on the base body (20).