Tubular Gypsum Firestop Lining for Precise Wooden Beam Penetrations
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Solution Overview
Problem
Conventional penetration part fireproof covering materials in wooden buildings face challenges in achieving sufficient dimensional accuracy and high production costs due to the need for custom tubular molds, which can lead to difficulties in snugly fitting the firestop material and increased costs.
Innovation Solution
A fireproof covering material formed by stacking and unitarily connecting annular gypsum board pieces of specific thicknesses, fixed with metal fasteners, to create a tubular shape that can be easily and accurately installed in penetration parts, eliminating the need for custom molds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If custom tubular molds are used to form firestop material, then the fireproof performance is improved, but the production cost increases and manufacturing complexity increases
Solution Approach 1:
The tubular fireproof covering material is divided into multiple circular plate pieces stacked in sequence. Each plate piece can be independently manufactured without requiring complex custom tubular molds, thereby reducing production cost and manufacturing complexity while maintaining the overall fireproof performance of the assembled tubular structure
Solution Approach 2:
The circular plate pieces can be manufactured using standard, universal manufacturing processes applicable to flat plates rather than specialized tubular molding processes. This universal manufacturing approach reduces cost while the stacked assembly maintains the required fireproof function
2Reliability
If custom tubular molds are used to form firestop material, then the fireproof performance is improved, but the device complexity and mold cost increase
Solution Approach 1:
The complex tubular structure is segmented into multiple simple circular plate pieces. Each plate piece can be manufactured using simple, standard processes without requiring complex custom tubular molds, thereby reducing device complexity while maintaining fireproof performance through the stacked assembly
3Reliability
If cast firestop material is used to form tubular member, then the fireproof performance is achieved, but the dimensional accuracy deteriorates
Solution Approach 1:
The tubular fireproof covering material is segmented into multiple circular plate pieces with precisely controllable dimensions. Each plate piece can be manufactured with high dimensional accuracy using standard cutting processes, and the stacked assembly maintains overall dimensional precision while achieving fireproof performance
4Reliability
If cast firestop material is used to form tubular member, then the fireproof performance is achieved, but the ease of installation deteriorates due to poor dimensional accuracy
Solution Approach 1:
The tubular structure is segmented into multiple circular plate pieces with precisely controlled dimensions. The precise dimensional control of each plate piece ensures that the stacked assembly fits accurately into penetration parts, thereby improving ease of installation while maintaining fireproof performance
Solution Approach 2:
The circular plate pieces are pre-manufactured with precise dimensions and stacked in sequence before installation. This preliminary preparation ensures that the final assembled tubular structure has the required dimensional accuracy for easy installation into penetration parts
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
This solution allows for accurate, economic, and easy installation of a fireproof covering material that functions as a firestop layer, effectively preventing fire spread while reducing production costs and ensuring snug fits within penetration parts.
Implementation Method 1
Patent Literature 1 also discloses that, other than mortar, gypsum, calcium silicate, or the like can be used as a large heat capacity material that can be used to form a firestop and can absorb heat.
Data Source
Figure 1~2
Figure 3(a)~3(b)
Figure 4(a)~4(d)
AI summary
A penetration part fireproof covering material (10) used when a penetration part (11) covered for fireproof is formed in a fireproof beam (20) that is a fireproof constructional member that constitutes a wooden building, wherein the penetration part fireproof covering material (10) is formed to have a tubular shape by stacking a plurality of gypsum board pieces (13a) formed from gypsum boards (13) in a thickness direction and unitarily connecting the plurality of gypsum board pieces (13a). The penetration part fireproof covering material (10) is formed to have the tubular shape by stacking the plurality of gypsum board pieces (13a) that preferably have an annular shape and are cut out from commercially available gypsum boards 13 having thicknesses of 9.5 mm to 25.5 mm while fixing the plurality of gypsum board pieces (13a) to each other preferably using metal fasteners such as staples (14), and unitarily connecting the plurality of gypsum board pieces (13a).