Hoop Plate Welded Precast Concrete Beam-Column Joint
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Solution Overview
Problem
Current prefabricated concrete construction methods face inefficiencies in production, quality control, and environmental impact due to complex force mechanisms and cumbersome wet connection processes, necessitating an economical and convenient beam-column joint solution for precast concrete columns.
Innovation Solution
A construction method involving a hoop plate with studs and circumferential reinforcing plates connecting upper and lower precast columns to a horizontal beam, ensuring sufficient strength and rigidity through welding and anchoring, simplifying the connection process and improving construction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If wet connection is used to connect precast concrete components, then connection strength is improved, but construction process complexity and operational difficulty increase due to formwork requirements
Solution Approach 1:
The patent introduces a connection plate as an intermediary component between precast concrete components. This connection plate simplifies the wet connection process by providing a standardized interface that eliminates the need for complex formwork operations while maintaining adequate connection strength through the plate's structural design and anchoring mechanisms.
Solution Approach 2:
The connection system is segmented into separate functional components: the connection plate, anchoring elements, and interface details. This segmentation allows each component to be optimized independently and simplifies the overall construction process by enabling modular assembly without requiring extensive formwork or complex operational procedures.
2Ease of operation
If dry connection is used to connect precast concrete components, then construction operation is simplified, but connection quality becomes sensitive to material variations and operational technology
Solution Approach 1:
The connection plate design incorporates specific geometric parameters and material properties that optimize both ease of operation and connection quality consistency. By carefully selecting plate thickness, anchoring element dimensions, and interface surface characteristics, the system achieves reliable connections while maintaining operational simplicity and reducing sensitivity to material variations.
3Strength
If conventional beam-column joint construction is used, then structural strength is ensured, but construction efficiency decreases due to complicated processes and high resource waste
Solution Approach 1:
The connection plate serves multiple functions simultaneously: it provides structural connection, distributes loads, anchors to concrete surfaces, and simplifies the overall joint construction process. This multi-functionality eliminates the need for separate specialized components and procedures, thereby improving construction efficiency while maintaining structural strength requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method provides a strong, rigid, and efficient beam-column joint with high connection strength, reducing construction difficulties and improving efficiency while minimizing environmental impact.
Implementation Method 1
welding a circumferential reinforcing plate in the hoop plate; welding the hoop plate of the upper precast column with the hoop plate of the lower precast column
Implementation Method 2
obtaining a hoop plate, where an inner side of the hoop plate is provided with studs; connect the horizontal beam with the hoop plate
Data Source
AI summary
A beam-column joint of a concrete precast column and a construction method thereof, including: obtaining a hoop plate, in which an inner side of the hoop plate is provided with studs; welding a circumferential reinforcing plate in the hoop plate; arranging longitudinal bars and stirrups for bundling the longitudinal bars; pouring the upper precast column and the lower precast column with the circumferential reinforcing plates in the two hoop plates as the boundary support formwork; welding the hoop plate of the upper precast column with the hoop plate of the lower precast column; arranging a horizontal beam at the hoop plate, and connect the horizontal beam with the hoop plate. The upper precast column and the lower precast column are connected by welding hoop plate; the hoop plate is used to connect the precast column and the horizontal beam.