Truss Hold-Down Connector Merging Attachment Functions
Solution Overview
Problem
Existing truss connector systems require multiple types of connectors and are labor-intensive, often causing interference with truss web installation due to the need for two different connectors and complex attachment processes.
Innovation Solution
A truss hold-down connector with a vertical connector web featuring a bottom attachment leg and parallel attachment tabs that allow for direct attachment to a bearing member, simplifying the installation process and reducing the need for multiple connector types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two different types of connectors are used to attach the truss to the bearing member, then the attachment can be achieved, but the device complexity and labor intensity increase
Solution Approach 1:
The patent combines the functions of two separate connectors (C-shaped connector and L-shaped clip) into a single integrated hold-down connector. This unified connector has a vertical web with attachment means at both the top and bottom ends, eliminating the need for multiple separate components while maintaining the attachment reliability.
Solution Approach 2:
The hold-down connector is designed to perform multiple functions: it attaches to the bearing member at its bottom end and to the truss chord at its top end, while also providing a receiving area for truss webs. This multi-functional design reduces the number of different connector types needed.
2Reliability
If two different types of connectors are used to attach the truss to the bearing member, then the attachment can be achieved, but the labor intensity increases
Solution Approach 1:
By merging the functions of two separate connectors into one integrated hold-down connector, the installation process is simplified. Installers no longer need to sequentially attach different connector types, reducing the number of steps and labor required while maintaining secure attachment.
3Reliability
If the first connector is attached to the stud flanges, then the attachment is achieved, but the installation of additional truss webs is interfered with
Solution Approach 1:
The hold-down connector positions its attachment means at the top end away from the truss web attachment area. The connector's vertical web and receiving area are configured to provide clearance, allowing truss webs to be installed diagonally from the stud to the upper chord without interference from the connector's fasteners.
4Device complexity
If a single hold-down connector is used to attach the truss to the bearing member, then the device complexity is reduced, but the attachment reliability must be maintained
Solution Approach 1:
The single hold-down connector is designed with multi-functional capabilities: it provides attachment to the bearing member via the bottom end, attachment to the truss chord via the top end, and includes a receiving area for truss webs. This consolidates multiple functions into one component while maintaining secure attachment through properly positioned attachment means.
Data Source
AI summary
A truss hold-down connector for attaching metal trusses to a bearing member. One embodiment of the truss hold-down connector has a vertical connector web that has a bottom attachment leg protruding therefrom for attachment to a bearing member and first and second attachment tab portions for attachment to the flanges of a vertically extending truss web. Stiffeners may be embossed into the vertical connector web to provide the connector with additional strength. The first and second attachment tabs may be configured to enable pairs of identical connectors to be attached to vertically extending truss webs that have one or more diagonally extending truss webs attached thereto.