Permanent Formwork Wall Connecting Cablet
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Solution Overview
Problem
Existing permanent formwork walls face challenges in connecting adjacent walls due to complex and precise handling requirements of traditional connecting means, which are difficult to manage and install, leading to logistical issues and potential omissions or improper use of connecting elements.
Innovation Solution
A flexible cable shaped as a loop with strands extending inside and outside the wall serves as a connecting means, allowing easy adaptation, storage, and implementation, facilitating the connection between walls by deforming around obstacles and ensuring proper force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional rigid connecting means (basket, metal bars, rods) are used to connect adjacent walls, then the connection strength and structural stability are improved, but the device complexity and difficulty of installation increase significantly
Solution Approach 1:
The patent replaces rigid metal bars and rods with a flexible cable that can deform to navigate around obstacles during installation. The cable maintains sufficient tensile strength to connect adjacent walls while its flexibility allows it to pass through openings and around structural elements without requiring complex assembly procedures.
Solution Approach 2:
The patent employs a simple, inexpensive cable as the connecting means, which can be easily replaced if needed. This disposable-like approach eliminates the need for complex assembly and disassembly of permanent metal structures, reducing installation complexity while maintaining adequate connection strength for the application.
2Stability of the object's composition
If traditional rigid connecting means are used, then the structural stability is improved, but the ease of operation and installation precision requirements worsen
Solution Approach 1:
The patent transitions from static rigid connecting elements to a dynamic flexible cable that can adapt its shape during installation. The cable's ability to deform allows installers to guide it around obstacles and through openings without requiring precise alignment or complex manipulation, significantly improving ease of operation while maintaining structural stability once installed.
3Reliability
If connecting means are embedded in wall material, then the connection reliability is improved, but the manufacturing precision and time requirements increase
Solution Approach 1:
The patent allows the cable to be installed before final wall assembly or positioning. By preparing the cable routing path in advance and installing the cable beforehand, the system eliminates the need for precise embedding operations during final wall installation, reducing manufacturing precision requirements while maintaining connection reliability.
4Force
If rigid connecting means are used, then the force transmission capability is improved, but the adaptability to different wall configurations decreases
Solution Approach 1:
The flexible cable can accommodate various wall thicknesses, orientations, and spatial configurations while maintaining adequate tensile strength for force transmission. Unlike rigid metal bars that require precise fitting and cutting for different configurations, the cable can be routed around obstacles and adapted to different wall arrangements without compromising force transmission capability.
Data Source
Figure 1
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AI summary
The invention relates to a lost formwork wall (1) comprising: - two facing, parallel and spaced skins (2; 3), with an internal volume (5) between them; - at least one means (6) for connecting these two skins (2; 3); - at least one means (7) for connecting this wall (1) with another juxtaposed wall (1'), such a connecting means (7) equipping at least one of the lateral sides (10; 10a) of the wall (1) and comprising a first portion (70) inside the wall (1) and a second portion (71) outside this wall (1). The connecting means (7) of this wall (1) consists of a flexible cable (8), formed into a loop (80) constituting at least a part of the second portion (71) of the connecting means (7), comprising two strands (81; 81a) extending from the loop (80), while the first portion (70) of the connecting means (7) consists of at least a part of the two strands (81; 81a) extending inside the wall (1).