Frame Formwork Edge Profile with Corrugation for Buckling Resistance

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing frame formwork systems face challenges in load-bearing capacity, particularly with thin-walled hollow profiles that are prone to buckling under high loads, and require enhanced stability in coupling areas to withstand concrete pressure.

Innovation Solution

The frame formwork element features edge profiles with groove-forming fastening and reinforcing corrugations that increase rigidity and load-bearing capacity, allowing for thinner profiles and reduced weight, while the batten system provides additional support and connection options through a tongue-and-groove principle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If thin-walled hollow profiles are used for the frame formwork, then material usage and costs are reduced and weight is decreased for easier handling, but the load-bearing capacity decreases and buckling risk increases under high loads

Engineering Contradiction:

Improveweight of frame formworkVSAvoidload-bearing capacity

Core Design Contradiction:

Weight of moving objectVSStrength

Solution Approach 1:

The patent applies composite materials by combining the hollow profile (providing lightweight structure) with corrugation elements (providing reinforcement). This creates a composite structure where the hollow profile and corrugation work together to achieve both weight reduction and enhanced load-bearing capacity, resolving the contradiction between using thin-walled profiles and maintaining strength.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by adding corrugation elements at specific locations on the hollow profile rather than uniformly thickening the entire structure. The corrugations are positioned at critical areas where reinforcement is needed to prevent buckling and increase load-bearing capacity, while maintaining the lightweight thin-walled design in non-critical areas.

Inventive Principle:

Principle #3Local quality

2Loss of substance

If thin-walled hollow profiles are used for the frame formwork, then material usage and costs are reduced and weight is decreased for easier handling, but the risk of buckling under load increases

Engineering Contradiction:

Improvematerial usageVSAvoidbuckling resistance

Core Design Contradiction:

Loss of substanceVSStability of the object's composition

Solution Approach 1:

The patent creates a composite structure combining the hollow profile with corrugation elements, achieving buckling resistance without increasing material usage. The corrugations provide structural reinforcement that prevents buckling while the hollow profile maintains material efficiency and cost-effectiveness.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The corrugation elements are strategically positioned at critical locations where buckling is most likely to occur, providing localized reinforcement that prevents buckling without requiring additional material throughout the entire structure. This maintains material efficiency while ensuring stability.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If frame formwork elements are coupled together to form parallel structures for wall section production, then the ability to produce larger wall sections is improved, but the coupling areas must withstand high concrete pressure which increases the load demand on these connection points

Engineering Contradiction:

Improveability to produce larger wall sectionsVSAvoidpressure on coupling areas

Core Design Contradiction:

Adaptability or versatilityVSStress or pressure

Solution Approach 1:

The coupling areas utilize the composite structure of hollow profile with corrugation elements, where the corrugations provide enhanced local strength at the connection points. This allows the coupling areas to withstand high concrete pressure while maintaining the overall lightweight design that enables versatile wall section production.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The corrugation elements are positioned at the coupling areas to provide localized reinforcement specifically where high concrete pressure acts on the connections between parallel frame formwork elements. This ensures the coupling areas can handle the increased stress demands while maintaining adaptability for producing various wall section sizes.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20230407651A1Frame formwork element and frame formwork system, and use of a strip in a frame formwork system

Publication Date: 2023.12.21 PERI GMBH

AI summary

The invention relates to a frame formwork element (100) for a frame formwork system (300) for producing a wall section in concrete construction, comprising:a plurality of, in particular four, edge profiles (101) which form a frame (102) having a frame inner side (103) and a frame outer side (104),wherein at least one edge profile (101) is a hollow profile and in the cross-section has a profile section on the frame inner side with a groove-forming fastening corrugation (107) and a profile section on the frame outer side with a groove-forming reinforcing corrugation (105), wherein in the cross-section of the edge profile (101) the fastening corrugation (107) and the reinforcing corrugation (105) lie opposite one another and have the same shape. The invention further relates to a frame formwork system (300) having such a frame formwork element (100) and a batten (200). Moreover, use of a batten (200) in a framed formwork system (300) is proposed.