Formwork Anchoring Elements for Drilling-Free Reinforcement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for connecting rod-shaped tensile force reinforcement elements to building components, such as ceilings made of in-situ concrete, are complex and often require drilling holes or result in protrusions that complicate scaffolding setup, especially in tight construction sites.
Innovation Solution
A formwork device with formwork elements and anchoring elements that create recesses in the building component during casting, allowing for a form-fitting connection with a filler material, enabling the subsequent attachment of tensile force reinforcement elements without drilling holes and without protrusions, using a common anchoring element for multiple formwork elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drilling holes in the cast component is used to connect reinforcement elements, then the reinforcement elements can be anchored, but the procedure becomes complex and time-consuming
Solution Approach 1:
The anchoring elements are integrated into the formwork device before casting, allowing them to be positioned and embedded in the concrete component during the initial casting process. This preliminary placement eliminates the need for subsequent drilling and anchoring operations, simplifying the overall connection procedure while ensuring reliable anchoring of reinforcement elements.
Solution Approach 2:
The formwork device serves as an intermediary carrier that temporarily holds the anchoring elements in the correct positions during casting. After the concrete hardens, the formwork is removed, leaving the anchoring elements properly embedded in the component, ready for reinforcement element attachment without requiring additional drilling operations.
2Strength
If tensile force reinforcement elements are positioned on the building component before casting, then higher tensile forces can be absorbed, but protrusions occur that complicate scaffolding setup
Solution Approach 1:
The reinforcement elements are extracted from the formwork device after casting is complete. The formwork device with integrated anchoring elements is removed from the hardened concrete component, leaving only the anchoring elements embedded in the concrete. This allows reinforcement elements to be attached later without any protrusions affecting scaffolding setup.
Solution Approach 2:
The anchoring capability is prepared in advance by embedding anchoring elements during casting, but the actual reinforcement elements are attached only when needed. This separates the preparatory anchoring phase from the final connection phase, allowing scaffolding to be set up without interference from protruding reinforcement elements.
3Ease of operation
If reinforcement elements are attached retrospectively without drilling holes, then scaffolding setup is simplified, but a solution is needed to ensure proper connection
Solution Approach 1:
The anchoring elements are designed to create their own anchoring function through the form-fitting connection with the filler material. When the reinforcement element is attached and filler is introduced, the anchoring elements automatically engage with the filler to create a reliable form-fitting connection, eliminating the need for drilling holes while ensuring connection reliability.
Solution Approach 2:
The connection mechanism transitions from mechanical drilling to a form-fitting connection based on geometric compatibility between the anchoring elements and filler material. This parameter change in the connection approach allows retrospective attachment without drilling while maintaining reliable connection through the form-fitting geometry of the anchoring elements.
4Reliability
If multiple separate anchoring elements are used for each formwork element, then each recess can be independently anchored, but the device complexity increases
Solution Approach 1:
Multiple anchoring elements are merged into a single common anchoring element that serves multiple formwork elements simultaneously. This common anchoring element is integrated into the formwork device structure, providing anchoring capability for multiple recesses while reducing the total number of separate anchoring components needed, thereby simplifying the overall device complexity.
Solution Approach 2:
The common anchoring element is designed with multi-functionality to serve multiple formwork elements and create multiple recesses. This universal anchoring component can be positioned and configured to provide anchoring support for various numbers and arrangements of formwork elements, reducing device complexity while maintaining reliable anchoring for each recess.
Data Source
Figure 1~4
Figure 5~8
Figure 9~13
AI summary
The formwork device has a formwork element (2) for forming a recess for the connected reinforcement element and an anchoring element (3). The anchoring element is formed so that a positive connection is manufactured between the building component and a filler, particularly concrete. The filler is inserted in the recess. Independent claims are also included for the following: (1) a heat insulation element with an insulating body; and (2) a method for connecting a reinforcing element to a building component, particularly a building ceiling.