Formwork Beam Reinforcement for Load Capacity
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Solution Overview
Problem
Existing formwork supports, particularly those with wooden chords, lack sufficient load-bearing capacity to handle high operating loads effectively, and metal profiles, while stable, are costly and require specialized fastening methods.
Innovation Solution
Incorporating reinforcement elements made of materials like aluminum, plastic, or fiber-reinforced plastic, which are anchored directly to the web element within the chord elements, enhancing load transfer and rigidity without protruding beyond the chord's outer surfaces, and using hollow profile elements with retaining openings for secure fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If wooden chords are used in formwork supports, then cost is reduced and ease of manufacture is improved, but load-bearing capacity is insufficient
Solution Approach 1:
The patent applies composite materials by combining wooden chords with metal reinforcement elements. The reinforcement elements are embedded within recesses in the wooden chords, creating a composite structure that leverages the high load-bearing capacity of metal while maintaining the ease of manufacture and cost-effectiveness of wood. This composite approach directly resolves the contradiction by achieving both structural strength and manufacturing simplicity.
2Strength
If metal profiles are used for formwork supports, then load-bearing capacity and stability are improved, but cost increases significantly
Solution Approach 1:
The patent applies local quality by placing metal reinforcement elements only in specific locations where they are most needed - within recesses in the wooden chords at critical stress points. This localized reinforcement provides the necessary load-bearing capacity enhancement without requiring complete metal construction, thereby significantly reducing material costs while maintaining structural integrity.
3Reliability
If reinforcement elements are embedded in chord elements, then load transfer is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the chord elements into distinct sections - the main wooden chord structure and separate recesses that accommodate reinforcement elements. This segmentation allows for modular assembly where reinforcement elements can be independently positioned and secured within pre-formed recesses, improving load transfer through direct contact while keeping the overall structure relatively simple and manageable.
Data Source
Figure 1a~1b
Figure 2~4
Figure 5~7
AI summary
Formwork support (3) comprising a first girder element (6) composed of a wood material, a second girder element (7) composed of a wood material and a crosspiece element (8) connecting the first girder element (6) with the second girder element (7), wherein the crosspiece element (8) has at least one projection (9) on the one longitudinal side for connecting to the first girder element (6) and/or has at least one second projection (10) on the other longitudinal side for connecting to the second girder element (7), and comprising at least one first reinforcement element (11) extended in the longitudinal direction (5) of the first girder element (6), which is arranged in a corresponding recess (12) of the first girder element (6), wherein the at least one reinforcement element (11) is adjacent to the at least one first projection (9) of the crosspiece element (8).