Resilient Fitting Plate for Fireproof Sandwich Panel Expansion
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Solution Overview
Problem
Existing sandwich panel systems in fireproof walls face challenges in withstanding thermal expansion and shock impacts during fires, leading to potential buckling and collapse, and are cumbersome and expensive to install due to their complex structures and multiple layers.
Innovation Solution
A resilient fitting metal plate system that can expand and contract to absorb dynamic impact loads, distributing energy over time and maintaining panel attachment, while also providing a protective cavity for heat-resistant materials to slow down heat transfer and prevent overloading of fastening means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prior art sandwich panel walls use complicated structures and several layers of sandwich panels to increase fire resistance and shock impact resistance, then the ability to withstand fire and shock impacts is improved, but the system becomes cumbersome to install and expensive
Solution Approach 1:
The system divides the fireproof wall into modular sandwich panels that can be independently manufactured and assembled. Each panel is a self-contained unit with standardized dimensions and attachment mechanisms, allowing simple sequential installation without complex structural integration
Solution Approach 2:
The sandwich panels are designed as multi-functional elements that simultaneously provide structural support, fire resistance, and shock impact resistance. The fastening means and resilient fitting metal plates perform multiple functions including mechanical attachment, thermal expansion accommodation, and impact energy absorption
2Reliability
If sandwich panels are exposed to excessive heat during fire, then thermal expansion occurs causing buckling and collapse, but adding more protective layers increases complexity and cost
Solution Approach 1:
The resilient fitting metal plate changes its physical parameters (shape and dimensions) in response to thermal expansion. The plate is designed to flex and deform elastically when heated, accommodating the expansion of sandwich panels without causing buckling or collapse
Solution Approach 2:
The fastening system transitions from a rigid static connection to a dynamic resilient connection. The resilient fitting metal plate can dynamically adjust its configuration during thermal events, maintaining attachment while accommodating movement and deformation
3Reliability
If sandwich panels are hit by falling structural elements during fire, then shock impacts cause crumpling and collapsing of the wall, but increasing protective layers makes the system cumbersome and expensive
Solution Approach 1:
The resilient fitting metal plate is pre-configured to absorb and dissipate impact energy. When shock loads occur, the plate's elastic properties allow it to deform and absorb energy, protecting the sandwich panels from crumpling and collapsing
Solution Approach 2:
The system converts the harmful shock impact energy into beneficial elastic deformation of the resilient fitting metal plate. The impact force causes controlled deformation of the plate, which then dissipates energy through elastic recovery, protecting the overall wall structure
4Reliability
If fastening means are used to attach sandwich panels to supporting elements, then panels are secured in place, but the fastening means may break under dynamic impact loads
Solution Approach 1:
The resilient fitting metal plate serves as an intermediary element between the sandwich panel and the fastening means. It absorbs and distributes impact forces, preventing concentrated loads from breaking the fastening connections
Solution Approach 2:
The fastening system's mechanical properties change under load through the resilient plate's elastic deformation. The plate's ability to change shape and distribute forces prevents overload of the fastening connections during dynamic impact events
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 enhances the durability of sandwich panel walls by preventing buckling and collapse during fires, allowing them to withstand impact loads and excessive heat for longer periods without breaking, while being easier and less expensive to install due to its flexible and sturdy design.
Implementation Method 1
each resilient fitting metal plate is configured to expand from an original shape into another shape and contract, i.e. to spring back to its original shape. This shape-change ability of the resilient fitting metal plate enables it to flexible but sturdy respond to a dynamic impact load or shock
Implementation Method 2
The resilient fitting metal plate prevents each deformed sandwich panel from coming loose from the wall by holding on to the panel. This is done by distributing the energy of the impact load over a prolonged period of time
Data Source
Figure 1
Figure 2(A)
Figure 3A(B)
AI summary
The present invention relates to a resilient fitting plate (10) and a system (80) comprising at least two such resilient fitting plates (10) configured to hold/support/mount sandwich panels (1, 2, X) for forming a fireproof wall (60, 61). Each resilient fitting plate (10) is attached with a first end (11) to a first part/end (3) of a first sandwich panel (1, X) and/or a supporting element (20) and with a second end (12) to a first part/end (4) of a second sandwich panel (2, X) and/or the supporting element (20), and is adapted to hold the ends of the sandwich panels (1, 2, X). Between its ends (11, 12) is an expansion section (15).