Concrete Core Tempering Spacer Layout to Prevent Twisting
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Solution Overview
Problem
Existing concrete core temperature control elements face issues with spacer devices tilting or twisting under rough site conditions, leading to inconsistent concrete covering and potential exposure of reinforcement parts, which compromises the quality and uniformity of the concrete surface.
Innovation Solution
The spacer devices are arranged such that distributor bars run parallel to lattice layer bars, with spacer elements having elevations that prevent twisting by abutting lattice rods, and multiple connecting elements are used to secure the spacer elements, ensuring stability and preventing twisting or tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional spacer devices are used without anti-twisting features, then the device complexity is reduced and ease of manufacture is improved, but the spacer devices tilt and twist under rough site conditions leading to inconsistent concrete covering and reinforcement exposure
Solution Approach 1:
The spacer element incorporates an asymmetric elevation structure with a flat upper side and a vertical projection that abuts against the lattice girder. This asymmetric geometry prevents rotation and twisting of the spacer device while maintaining relatively simple construction, resolving the contradiction between manufacturing precision and device complexity.
Solution Approach 2:
The spacer device is pre-assembled with the elevation structure on the spacer element before placement on the construction site. The distributor rod is positioned on the elevation during assembly, ensuring proper orientation and preventing twisting before the concrete is poured, thereby improving concrete cover consistency without significantly increasing overall device complexity.
2Reliability
If multiple connecting elements are used to secure spacer elements, then the stability and anti-twisting capability are improved, but the ease of manufacture and device complexity are affected
Solution Approach 1:
The connecting element is designed to perform multiple functions simultaneously: it connects the distributor rod to the spacer element while also serving as the anti-twisting feature through its specific geometric configuration. This merging of functions improves reliability without proportionally increasing device complexity or manufacturing difficulty.
Solution Approach 2:
The elevation structure on the spacer element serves dual purposes: it provides a positioning surface for the distributor rod and simultaneously acts as a mechanical stop that prevents twisting and tilting of the entire spacer device. This multi-functionality enhances stability while keeping the device relatively simple to manufacture.
3Stability of the object's composition
If the distributor rod is positioned on the elevation of the spacer element, then the anti-twisting effect is achieved, but the device complexity increases
Solution Approach 1:
The elevation structure features an asymmetric design with a flat upper side for positioning the distributor rod and a vertical projection that contacts the lattice girder. This asymmetric geometry provides inherent anti-twisting capability through simple geometric constraints rather than complex mechanical components, achieving stable orientation with minimal increase in device complexity.
Data Source
Figure 1~3
Figure 4~6
AI summary
The element has a truss boom mat (1) whose truss boom layer (2) is arranged between a space-turn reinforcement layer and a space-turn outer layer. The truss boom mat is provided with longitudinal bars (4) that are connected with a transverse rod (5). A pipework system discharges moderate temperature fluid, and is connected with the truss boom layer. Spacing retention devices (6) are fixed with the space-turn reinforcement layer and arranged parallel to a dispatcher rod (7) and the longitudinal bars. A spacer element (8) is arranged vertically to the longitudinal bars.