Stub-Up Conduit Support Structure for Secure Formwork Attachment
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Solution Overview
Problem
The fabrication of makeshift stub-up supports on site for electrical conduits in concrete structures is time-consuming, costly, unreliable, and often results in damage or misalignment, failing to accommodate various conduit sizes and secure attachment to formwork.
Innovation Solution
A stub-up support system with a support body featuring multiple engagement points and attachment members that securely fasten to formwork, allowing flexible tubing to be supported at a desired angle without on-site fabrication, and enabling connection of multiple supports for organized installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If makeshift stub-up supports are fabricated on site, then the supports can be created without specialized equipment, but the fabrication process is time-consuming and increases costs
Solution Approach 1:
The stub-up supports are pre-fabricated with integrated attachment members and tube support members before reaching the construction site. This preliminary preparation eliminates time-consuming on-site fabrication while maintaining the ability to be installed without specialized equipment, directly resolving the contradiction between ease of manufacture and productivity
Solution Approach 2:
The support system is divided into distinct functional components: attachment members for securing to formwork and tube support members for holding conduits. This segmentation allows for efficient pre-fabrication and rapid assembly on-site, improving installation speed while maintaining manufacturing simplicity
2Adaptability or versatility
If makeshift stub-up supports are fabricated on site, then flexibility in creation is maintained, but the supports offer limited reliability and may not be adequately fixed to the formwork
Solution Approach 1:
The attachment members and tube support members are merged into a single integrated stub-up support unit. This combination ensures that the support is adequately fixed to the formwork through the attachment members while maintaining the ability to accommodate different conduit configurations, resolving the contradiction between adaptability and reliability
Solution Approach 2:
The stub-up supports are designed with universal attachment members that can be securely fixed to various formwork types, and tube support members that can accommodate different conduit sizes and configurations. This multi-functionality maintains flexibility while ensuring reliable attachment across different applications
3Reliability
If three points of contact are used with the flexible tube, then the required support level is achieved, but having more than three points may increase size and material costs
Solution Approach 1:
The tube support members are designed with specific geometric configurations that provide effective support at three critical points of contact with the flexible tube. This localized optimization ensures adequate support stability without adding unnecessary material or increasing the overall size of the support structure, resolving the contradiction between reliability and device complexity
Data Source
AI summary
A stub-up support system including a first stub-up support and a second stub-up support. The first stub-up support and the second stub-up support each have a support body having a front form attachment portion, a rear form attachment portion, a raised support portion, and an intermediate support portion. A front tube support member extends from the front form attachment portion, the front tube support member having a front support surface for engaging with a bottom surface of a flexible tube. An intermediate tube support member extends from the intermediate support portion, the intermediate tube support member having an intermediate support surface for engaging with a top surface of the flexible tube. A raised tube support member extends from the raised support portion, the raised tube support member having a raised support surface for engaging with the bottom surface of the flexible tube.