Folded Gypsum Panel for Fire-Rated Shaftwall
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Solution Overview
Problem
Conventional shaftwall panels require special manufacturing adjustments to achieve the necessary 1-inch thickness for fire-rated shafts, leading to inefficiencies in production scheduling and installation.
Innovation Solution
A standard ½-inch thick gypsum wallboard panel is scored and folded to create a 1-inch thick panel configuration, with angled edges allowing it to fit into standard studs or brackets without fasteners, using a score line that extends half the panel's thickness, enabling the creation of a double-thick panel for shaftwall systems from standard materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If standard ½-inch thick wallboard panels are used, then manufacturing is simplified and production efficiency is improved, but the required 1-inch thickness for fire-rated shafts cannot be achieved
Solution Approach 1:
The panel is segmented by introducing a score line that extends approximately half the thickness of the panel, dividing it into two portions that can be folded relative to each other. This segmentation allows the panel to achieve double thickness (1-inch) when folded, while starting from standard ½-inch thick material, thus resolving the contradiction between using standard panels and achieving required thickness.
Solution Approach 2:
The solution transitions from a single-layer panel to a folded multi-layer configuration. By folding the panel along the score line, the panel portions are arranged in a different spatial dimension, creating a double-thick panel structure that maintains the fire rating requirement while using standard thickness material.
2Reliability
If 1-inch thick panels are manufactured specially, then the required fire rating is achieved, but production scheduling is disrupted and manufacturing complexity increases
Solution Approach 1:
The effective thickness parameter of the panel is changed from ½-inch to 1-inch through folding, rather than changing the material thickness parameter during manufacturing. This allows standard panels to achieve the required fire rating thickness without special manufacturing adjustments, maintaining production simplicity while ensuring fire safety compliance.
Solution Approach 2:
The score line is pre-formed in the panel during standard manufacturing, enabling the panel to be folded into the required double-thick configuration during installation. This preliminary action ensures that the fire rating requirement is met without disrupting production scheduling or increasing manufacturing complexity.
3Manufacturing precision
If panels are folded along a score line, then double thickness is achieved from standard panels, but additional installation steps are required
Solution Approach 1:
The panel is segmented by the score line into two foldable portions, enabling the transformation from single-layer to double-layer configuration. This segmentation facilitates the folding operation during installation, allowing workers to achieve the required 1-inch thickness by simply folding the panel along the pre-formed score line.
Solution Approach 2:
The score line acts as an intermediary element that facilitates the folding operation. By providing a pre-formed guide line, it makes the folding process easier and more precise during installation, reducing the complexity of achieving double thickness despite the additional installation step.
Data Source
AI summary
A panel for a shaftwall system includes a panel body with a core and at least one outer facing layer and an opposite backing surface. A score line is formed in the facing layer, defining two folded panel portions. The panel is folded along the score line to form a folded edge, and the folded panel portions are arranged so that the backing surfaces of the panel portions contact each other. A companion shaftwall building structure system is provided, including a plurality of the panels defining an enclosure, each panel being a ½-inch thick wallboard panel having a “V”-shaped score line defining a pair of panel portions, the score line forms a tapered edge of the folded panel. A plurality of brackets is provided, each bracket defining a panel track dimensioned for slidingly accommodating the folded panel and retaining the panel in place without the use of fasteners.