Precast Concrete Connection Arrangement for Narrow Stable Joints
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Solution Overview
Problem
Existing connection systems for precast concrete parts are complex, require separate securing of each element, and result in large joint dimensions, making the construction process inefficient and prone to errors.
Innovation Solution
A connection arrangement featuring elongated shafts with widened heads that engage with anchor rails on adjacent precast concrete parts, providing a tension-stable and pressure-resistant connection, allowing for secure linking of precast concrete parts without separate supports, and enabling reduced joint dimensions through axial and radial fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connection systems are used for precast concrete parts, then each element can be securely connected, but the construction process becomes complex and time-consuming due to the need for separate securing of each element
Solution Approach 1:
The patent combines multiple connection functions into a single integrated connection element that simultaneously provides lateral connection, axial securing, and radial fastening. This merging of functions eliminates the need for separate supporting elements and multiple connection steps, thereby reducing construction complexity while maintaining reliable connection stability.
Solution Approach 2:
The connection element is designed as a multi-functional component that performs multiple tasks: it connects adjacent precast parts laterally, secures them axially against displacement, and fastens them radially. This universal design allows a single element to replace what would traditionally require multiple separate components and operations.
2Strength
If traditional connection methods are used, then adequate connection strength can be achieved, but joint dimensions become large requiring extensive formwork and filler material
Solution Approach 1:
The invention changes the geometric parameters of the connection system by using a compact connection element with integrated heads that engage directly with anchor rails. This allows the joint width to be reduced to minimal dimensions while maintaining adequate connection strength through the engineered interaction between the connection element heads and the anchor rail structure.
Solution Approach 2:
The patent extracts the formwork and filler material functions from the traditional connection process. By designing a connection element that provides structural continuity and load transfer without requiring formwork enclosures or extensive filling, the joint volume is minimized while connection strength is maintained through the direct mechanical engagement of the connection element with the precast parts.
3Stability of the object's composition
If separate supporting elements are used for each precast concrete element, then stability during construction can be ensured, but the construction process becomes inefficient and error-prone
Solution Approach 1:
The patent merges the functions of separate supporting elements into the integrated connection element itself. The connection element provides both the connection function and the temporary support function during construction, eliminating the need for additional supporting components and streamlining the construction process to improve efficiency while maintaining stability.
Solution Approach 2:
The connection element is designed to be self-supporting during the construction process. It inherently provides the necessary stability and support for the precast parts it connects without requiring external supporting structures, thereby simplifying the construction process and improving productivity by reducing the number of components and steps required.
Data Source
Figure 1
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AI summary
The present invention relates to a connection arrangement for connecting at least two precast concrete parts (1, 2) each provided with at least one anchor bar (11, 12, 211, 212), wherein the connection arrangement (10) comprises a longitudinally extending shaft (30) comprising a first head (36) arranged on a first longitudinal end (32) broadened with respect to the shaft diameter (33) and a second head (38), broadened with respect to the shaft diameter (33) on a second longitudinal end (34) of the shaft (30), which is opposite the first longitudinal end (32). The invention further relates to a connection system building on this, a precast concrete part arrangement formed herewith and a corresponding method for connecting at least two precast concrete parts.