Stiffened C-Clamp Structure for Wind-Loaded Flexible Wall Panels
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Solution Overview
Problem
Existing C-clamps used to secure flexible wall panels under tension can spread open under extreme wind forces, compromising the support of the sheet material on the building frame.
Innovation Solution
A clamp apparatus with a channel body and externally mounted stiffener plates, featuring a threaded bore for a threaded member, which provides enhanced clamping strength to resist spreading under high loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional C-clamp is used to secure flexible wall panels, then the clamp can be installed easily, but the clamp spreads open under extreme wind forces causing failure
Solution Approach 1:
The clamp body is segmented into three main plates (first plate, second plate, and bridge plate) that are joined together to form a C-shaped profile. This segmentation allows each plate to be optimized for its specific function while collectively providing enhanced strength to resist spreading under extreme loads.
Solution Approach 2:
Stiffener plates are added as a fourth dimensional element (extending radially outward from the C-shaped profile) to provide additional structural support. This dimensional addition creates a three-dimensional reinforcement structure that effectively prevents the clamp from spreading open under extreme wind forces.
2Reliability
If the clamp body is made more robust to resist spreading, then the clamping strength improves, but the manufacturing complexity increases
Solution Approach 1:
The clamp body is constructed from separate plate components (first plate, second plate, bridge plate) that can be manufactured independently and then joined together. This segmentation allows for simpler manufacturing of individual components while achieving the reliability of a robust integrated structure.
Solution Approach 2:
Multiple plate components are joined together through welding to form the complete C-shaped clamp body with integrated stiffener plates. This merging of separate manufactured parts creates a reliable, robust structure that can resist extreme wind loads while maintaining manufacturing simplicity through modular construction.
3Force
If stiffener plates are added to prevent spreading, then the clamp withstands large forces, but the device complexity increases
Solution Approach 1:
Stiffener plates are strategically positioned at specific locations on the clamp body where structural reinforcement is most needed to prevent spreading. This localized reinforcement provides maximum force resistance with minimal additional components, rather than uniformly strengthening the entire clamp structure.
Solution Approach 2:
The stiffener plates extend radially outward from the C-shaped profile, adding a third dimension to the clamp structure. This dimensional addition creates effective force resistance against spreading while using a simple plate geometry that does not significantly increase overall device complexity.
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 clamp apparatus effectively withstands large forces without spreading, ensuring secure attachment of flexible sheets to building frames even under significant wind loads.
Implementation Method 1
a threaded bore formed on the first plate to threadably receive the threaded member extending therethrough
Implementation Method 2
the threaded member protrudes into the hollow interior of the channel body to define a first clamping jaw
Implementation Method 3
stiffener plates mounted externally on the channel body so as to be spaced apart from one another in said longitudinal direction
Implementation Method 4
each stiffener plate is joined to each one of the first plate, the second plate and the bridge plate of the channel body
Implementation Method 5
welding each stiffener plate externally onto channel body such that the stiffener plate is welded to each of the first plate, the second plate and the bridge plate
Data Source
AI summary
A clamp apparatus is used for securing one end of a flexible sheet spanning under tension across a building opening relative to a perimeter beam along the edge of the building opening. The clamp apparatus has a C-shaped channel body having (i) a first flange with a threaded bore therein to receive a bolt defining a first clamping jaw and (ii) a second flange defining an opposing second clamping jaw, whereby the clamp apparatus clamps a perimeter mounted flange of the flexible sheet onto a beam flange of the perimeter beam. C-shaped stiffener plates are mounted externally on the channel body, spaced apart from one another along the length of the channel body in perpendicular relation to the length to reinforce the clamp such that the clamp is able to withstand high wind forces acting on the tensioned sheet.