Connection Basket Open Reinforcement Profiles Shear Force

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Solution Overview

Problem

Conventional connection baskets are well-suited for moment transmission but less efficient in transmitting shear forces, leading to oversizing and increased material and cost expenditure at positions requiring high lateral force transmission.

Innovation Solution

The connection cage features upper and lower reinforcement profiles with a profile shape open transversely to the height direction, allowing for efficient lateral force transmission, with optional transverse bars connecting them for enhanced anchoring and break-out resistance, optimizing the design for specific load conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional connection cages with closed reinforcement profiles are used, then moment transmission is well-suited, but shear force transmission efficiency is low leading to oversizing

Engineering Contradiction:

Improveshear force transmission capacityVSAvoidmaterial expenditure

Core Design Contradiction:

StrengthVSQuantity of substance

Solution Approach 1:

The reinforcement profiles are designed with different cross-sectional shapes at different locations: open profiles (C-shaped, U-shaped, or L-shaped) at the ends for efficient shear force transmission, and closed profiles in the middle section for moment transmission and stability. This local differentiation allows each section to be optimized for its specific load requirement, avoiding unnecessary material usage throughout the entire structure.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The reinforcement profile is segmented into different sections with different geometric characteristics. The end sections feature open cross-sections optimized for shear, while the middle section has a closed cross-section for moment resistance. This segmentation allows the structure to use material only where needed for each specific function.

Inventive Principle:

Principle #1Segmentation

2Reliability

If connection cages are over-dimensioned for shear force transmission, then sufficient load capacity is achieved, but material and cost expenditure increases

Engineering Contradiction:

Improveload capacityVSAvoidmaterial expenditure

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The geometric parameters of the reinforcement profiles are changed along their length. The cross-sectional shape transitions from open at the ends to closed in the middle section. This parameter variation allows the structure to achieve sufficient load capacity at each location without being over-dimensioned throughout.

Inventive Principle:

Principle #35Parameter changes

3Strength

If horizontal connecting reinforcements are welded to both sides of reinforcement profiles, then moment transfer is achieved, but device complexity and manufacturing effort increases

Engineering Contradiction:

Improvemoment transfer capacityVSAvoidmanufacturing complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent extracts the moment transfer function from the horizontal connecting reinforcements and relocates it to the closed cross-sectional section of the reinforcement profiles themselves. The closed section acts as a moment of inertia element that resists bending, eliminating the need for additional horizontal bars welded to both sides for moment transfer.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The moment transfer function is merged into the reinforcement profile structure itself through the closed cross-sectional section. Instead of being a separate function performed by additional horizontal reinforcements, the closed section simultaneously provides both the structural continuity and the moment resistance through its geometric properties.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4123097A1Connection basket

Publication Date: 2023.01.25 AVI ALPENLANDISCHE VEREDELUNGS IND GES

Figure 1~2
Figure 3~4
Figure 5~6

AI summary

The invention relates to a connection basket (1) comprising an insulating body (2) for thermal insulation and a reinforcement structure penetrating the insulating body (2), wherein the reinforcement structure has an upper reinforcement profile (3) and a lower reinforcement profile (4) projecting from the insulating body (2). To increase practicality in use, the invention provides that the upper reinforcement profile (3) and/or the lower reinforcement profile (4) have a profile shape (5) in a respective cross-section that is open transverse to a vertical direction (H), preferably in a longitudinal direction (L), of the insulating body (2).