Fire Resistive Joint Cover With Floating Intumescent Sheet
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Solution Overview
Problem
Existing fire resistive joint cover systems fail to adequately provide for joint movement and properly position fire resistive materials within joints between roof, wall, floor, and ceiling members.
Innovation Solution
A fire resistive joint cover system that includes a covering member and an intumescent sheet, with base members that can couple with surfaces and a support structure to span gaps, allowing for joint movement and secure attachment of the intumescent sheet, which can be coupled with surfaces and base members using anchoring elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fire resistive materials are positioned within joints between building members, then fire protection is improved, but joint movement capability deteriorates
Solution Approach 1:
The covering member is designed as a floating covering member that can move relative to the base members, transforming the static fire barrier into a dynamic system that adapts to joint movement while maintaining fire protection
Solution Approach 2:
The system divides the fire barrier into modular components (intumescent sheet, base members, covering member) that can independently accommodate movement while collectively providing fire protection
2Reliability
If fire resistive materials are properly positioned within joints, then fire barrier effectiveness is improved, but system complexity increases
Solution Approach 1:
The system combines the fire barrier function with the joint covering function into a single integrated system, where the intumescent sheet is positioned between the base members and covering member, eliminating the need for separate fire protection and cosmetic covering systems
Solution Approach 2:
The covering member serves multiple functions: it provides the cosmetic finish, maintains the fire barrier integrity, and accommodates joint movement through its floating configuration
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 system effectively spans gaps between surfaces, allowing for joint movement while providing a fire barrier by securely attaching the intumescent sheet, thus enhancing fire protection and joint coverage.
Implementation Method 1
an intumescent sheet that can be coupled with the surfaces and/or base members
Data Source
AI summary
A fire resistive joint cover system operable to span a gap between two surfaces. The system generally may include first and second base members, a covering member, and an intumescent sheet. Each base member is operable to couple with one of the surfaces and the covering member is operable to couple with the base members to at least partially span the gap. In some embodiments, the covering member may be configured as a floating covering member and/or as a flexible elastomer seal.