Shear Tie Strap for Building Frame Stability
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Solution Overview
Problem
Current construction systems lack a comprehensive method to prevent damage from shear forces, particularly in high-wind and earthquake-prone areas, as they do not effectively tie building members spanning between sections, corners, or levels, leading to instability during severe events.
Innovation Solution
A shear transfer system comprising framing members and a shear tie strap with cross straps and connecting straps that attach to framing members, providing orthogonal or oblique connections to distribute shear forces across the building frame, enhancing stability and resistance to lateral loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional framing members are used without comprehensive shear transfer connections, then the device complexity is reduced, but the reliability of the structure against shear forces deteriorates
Solution Approach 1:
The shear transfer system is divided into multiple functional components: shear tie straps for connecting parallel framing members, corner ties for securing perpendicular members at intersections, and multiple attachment points distributed across the structure. This segmentation allows each component to address specific shear transfer needs while maintaining overall system reliability without requiring complete redesign of the entire framing system.
2Stability of the object's composition
If multiple shear transfer connections are added to tie building members spanning between sections, corners, or levels, then the structural stability improves, but the device complexity increases
Solution Approach 1:
The shear tie strap is designed as a universal connection component that can be applied at multiple locations throughout the structure (between parallel framing members, at corners, across levels) to address different shear transfer requirements. This multi-functional approach allows a single component design to serve multiple stability purposes, reducing the need for entirely different connection types for each application.
Solution Approach 2:
The shear transfer system extends connections across multiple dimensions of the building frame - horizontally between parallel members, vertically across levels, and diagonally at corners. By implementing shear transfer connections in multiple spatial dimensions, the system comprehensively addresses shear forces acting in various directions, significantly enhancing overall frame stability.
3Strength
If shear tie straps with multiple termini are used to connect framing members, then the resistance to wind and seismic events improves, but the ease of manufacture deteriorates
Solution Approach 1:
The shear tie strap is provided with pre-formed attachment points (termini) at predetermined locations along its length. These pre-positioned attachment points allow for simplified assembly by eliminating the need for field measurements and custom drilling locations. The termini are strategically positioned during manufacturing to match standard framing member spacing, enabling straightforward installation while maintaining optimal strength characteristics for resisting lateral loads.
Data Source
AI summary
A shear transfer system is provided. In the system a shear tie strap is attached to a first framing member, a second framing member, a third framing member, a fourth framing member, and a fifth framing member of a frame in a framed building. The second, third, fourth, and fifth framing members are orthogonal or oblique to the first framing member. More than one shear tie strap may be present in the framed building.