Corrugated Bridging Member for Steel Stud Torsional Bracing
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Solution Overview
Problem
Steel stud building wall systems face challenges in resisting lateral and torsional loads, particularly during fires when metal studs twist or bend, leading to loss of structural integrity and increased damage.
Innovation Solution
The development of channel-shaped bridging members with mounting sections featuring notches that interlock with the central web of steel studs, providing torsional rigidity and resisting high loads without the need for fasteners, allowing for quick installation and strong connections in various wall environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If channel-shaped bridging members are used to closely fit openings in steel studs, then torque resistance is maximized, but some twisting and lateral shifting still occurs
Solution Approach 1:
The bridging member is divided into multiple mounting sections along its longitudinal axis, each capable of independently engaging with stud openings. This segmentation allows the bridging member to provide torque resistance at multiple discrete locations while maintaining overall structural integrity and preventing both twisting and lateral shifting.
Solution Approach 2:
The bridging member incorporates flaring side walls that extend outwardly from the web at non-orthogonal angles, adding a dimensional element that provides lateral bracing. This dimensional extension allows the bridging member to resist both torsional loads (through the channel shape) and lateral loads (through the flaring geometry) simultaneously.
2Reliability
If sheet metal brackets are added to prevent lateral shifting, then structural stability improves, but device complexity and installation time increase
Solution Approach 1:
The functions of torque resistance and lateral bracing are merged into a single integrated bridging member structure. The channel-shaped body provides torque resistance while the flaring side walls provide lateral bracing, eliminating the need for separate sheet metal brackets and reducing overall system complexity.
Solution Approach 2:
The bridging member is designed to perform multiple functions simultaneously: it resists torque through its channel shape, prevents lateral shifting through its flaring side walls, and connects multiple studs through its series of mounting sections. This multi-functionality eliminates the need for additional specialized components.
3Strength
If multiple separate fasteners are used to connect brackets to studs and bridging members, then connection strength improves, but installation speed decreases
Solution Approach 1:
The bridging member is designed to self-align and self-lock into the stud openings through its mounting sections with notches that engage the central web. This self-service mechanism eliminates the need for multiple separate fasteners, allowing rapid installation while maintaining strong connections through the interlocking geometry.
4Ease of manufacture
If fixed-length short bridging members are used, then manufacturing simplicity is maintained, but adaptability to various wall environments is reduced
Solution Approach 1:
The bridging member incorporates multiple mounting sections at predetermined intervals along its length, allowing it to span varying distances between studs while maintaining consistent connection geometry. This segmented design with standardized mounting sections provides adaptability to different wall configurations while retaining manufacturing simplicity through repetitive modular elements.
Data Source
AI summary
A building connection between a plurality of vertical wall studs made with one or more bridging members to brace the wall studs. The one or more bridging members are formed with mounting sections that are received in openings of the wall studs and the mounting sections are bracketed by end sections where bridging members can overlap. The bridging members interface with the web of the wall studs to brace them.