Standardized Reinforcing Bars With Integrated Butt Joints
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Solution Overview
Problem
The existing methods for constructing reinforcing bar structures are inefficient due to the lack of standardized reinforcing bars with integrated joint devices, leading to material wastage, increased construction costs, and reduced economic feasibility, as they often require lap-splice joints which are prone to errors and compromise the structural integrity, especially during urgent construction needs.
Innovation Solution
The use of length-determined standardized reinforcing bars integrated with a butt joint device allows for continuous jointing of reinforcing bars using a butt joint method, minimizing joint points and enabling direct joint work between standardized bars, thereby reducing material loss and enhancing construction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lap-splice joint construction is used to connect reinforcing bars, then the reinforcing bars can be connected without integrated joint devices, but material costs increase and load capacity is reduced due to unnecessary material usage
Solution Approach 1:
The patent merges the reinforcing bar and joint device into an integrated structure where the joint device is pre-attached to the reinforcing bar ends. This integration eliminates the need for separate lap-splice connections and reduces material waste by precisely positioning joints only where structurally necessary.
2Ease of manufacture
If lap-splice joint construction is used to connect reinforcing bars, then the reinforcing bars can be connected without integrated joint devices, but the bar arrangement spacing is narrowed which degrades concrete fillability
Solution Approach 1:
By integrating the joint device with the reinforcing bar, the patent enables precise positioning that maintains adequate spacing between bars. The joint device is designed to minimize interference with concrete placement while ensuring secure mechanical connection.
3Adaptability or versatility
If standardized reinforcing bars with integrated joint devices are not available, then reinforcing bars must be individually cut and lap-spliced, but construction costs increase due to labor costs
Solution Approach 1:
The patent applies preliminary action by pre-attaching joint devices to reinforcing bars at the factory before delivery to the construction site. This advance preparation eliminates on-site cutting and splicing operations, significantly reducing labor costs and construction time while maintaining the ability to achieve various lengths through combination of standardized segments.
4Adaptability or versatility
If reinforcing bars are individually cut to specific lengths using a cutter, then the reinforcing bars can be used according to actual requirements, but a reinforcing bar loss of 2% to 5% occurs resulting in economic loss
Solution Approach 1:
The patent segments reinforcing bars into standardized length units with pre-attached joint devices. These standardized segments can be combined in various configurations to achieve different total lengths without cutting, thereby eliminating the 2-5% material loss associated with traditional cutting operations.
5Length of moving object
If reinforcing bars are lap-spliced to achieve longer lengths, then the required length can be obtained, but unnecessary material costs increase and load capacity is reduced
Solution Approach 1:
The patent combines multiple standardized reinforcing bar segments with integrated joint devices to achieve required lengths. This approach eliminates the need for overlapping lap-splices, reducing material consumption while maintaining structural load capacity through direct mechanical connections.
Data Source
AI summary
Disclosed are a length-determined standardized reinforcing bar integrated with a butt joint device, and a method of constructing a reinforcing bar structure by using the same, wherein after determining a material and a diameter of a reinforcing bar, a determined standardized length measurement, which is a length standard from one end to the other end, is determined and imparted to a reinforcing bar to be cut, and the reinforcing bar is cut to a determined standardized length in accordance with the imparted length measurement, and once the type of a butt joint device for butt-jointing the reinforcing bar cut to the determined standardized length is determined, the butt joint device is formed at, and integrated with, one end or both ends of the reinforcing bar cut to the standardized length by the determined standardized length.